(5.4.4) Compile Errors: numerous "Failed to restore" ..."*.csproj"

Development Programming & Scripting
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1

Hello,

I found the answer to my question whilst writing this up, so thought I’d post it here in case anyone else has something similar in the future.

The solution can be found here: https://learn.microsoft.com/en-us/answers/questions/1343108/nuget-error-nu1101

Please click Tools > NuGet Package Manager > Package Manager Settings > Package Sources > check if nuget.org package source has been added. If it hasn’t been added, please click the “Add” button on top right corner > change the Name to nuget.org and the Source to https://api.nuget.org/v3/index.json > click Update > click OK, then rebuild your project.

After a fresh install of UE5.4 and VS2022 Community the following errors appeared when I compiled, ending in:

========== Build: 1 succeeded, 10 failed, 1 up-to-date, 0 skipped ==========

A VS popup opened, stating, “There were build errors. Would you like to continue and run the last successful build?”

However, if I selected “Yes”, UE5 starts, and the class I’ve added is available to make a BP from.

Here’s what I have installed from VS2022 - I followed Epic’s Setting Up Visual Studio guide, and still had the above issue

vsInstalled
vsInstalled2680×1335 463 KB

Blockquote
Build started at 08:14…
1>------ Build started: Project: EpicGames.UBA, Configuration: Development Any CPU ------
2>------ Build started: Project: EpicGames.OIDC, Configuration: Development Any CPU ------
3>------ Build started: Project: EpicGames.Core, Configuration: Development Any CPU ------
Failed to restore C:\Program Files\Epic Games\UE_5.4\Engine\Source\Programs\Shared\EpicGames.Slack\EpicGames.Slack.csproj (in 5 ms).
Failed to restore C:\Program Files\Epic Games\UE_5.4\Engine\Source\Programs\Shared\EpicGames.MongoDB\EpicGames.MongoDB.csproj (in 5 ms).
Failed to restore C:\Program Files\Epic Games\UE_5.4\Engine\Source\Programs\Shared\EpicGames.Serialization\EpicGames.Serialization.csproj (in 7 ms).
Failed to restore C:\Program Files\Epic Games\UE_5.4\Engine\Source\Programs\Shared\EpicGames.Core\EpicGames.Core.csproj (in 7 ms).
Failed to restore C:\Program Files\Epic Games\UE_5.4\Engine\Source\Programs\Shared\EpicGames.UBA\EpicGames.UBA.csproj (in 7 ms).
Failed to restore C:\Program Files\Epic Games\UE_5.4\Engine\Source\Programs\Shared\EpicGames.Jupiter\EpicGames.Jupiter.csproj (in 7 ms).
Failed to restore C:\Program Files\Epic Games\UE_5.4\Engine\Source\Programs\Shared\EpicGames.MsBuild\EpicGames.MsBuild.csproj (in 7 ms).
Failed to restore C:\Program Files\Epic Games\UE_5.4\Engine\Source\Programs\Shared\EpicGames.Redis\EpicGames.Redis.csproj (in 7 ms).
Failed to restore C:\Program Files\Epic Games\UE_5.4\Engine\Source\Programs\Shared\EpicGames.OIDC\EpicGames.OIDC.csproj (in 5 ms).
Failed to restore C:\Program Files\Epic Games\UE_5.4\Engine\Source\Programs\Shared\EpicGames.Perforce\EpicGames.Perforce.csproj (in 7 ms).
Failed to restore C:\Program Files\Epic Games\UE_5.4\Engine\Source\Programs\Shared\EpicGames.Perforce.Fixture\EpicGames.Perforce.Fixture.csproj (in 11 ms).
Failed to restore C:\Program Files\Epic Games\UE_5.4\Engine\Intermediate\Build\BuildRulesProjects\UE5ProgramRules\UE5ProgramRules.csproj (in 11 ms).
Failed to restore C:\Program Files\Epic Games\UE_5.4\Engine\Source\Programs\Shared\EpicGames.Build\EpicGames.Build.csproj (in 12 ms).
Failed to restore C:\Program Files\Epic Games\UE_5.4\Engine\Source\Programs\UnrealBuildTool\UnrealBuildTool.csproj (in 11 ms).
Failed to restore C:\Program Files\Epic Games\UE_5.4\Engine\Source\Programs\Shared\EpicGames.UHT\EpicGames.UHT.csproj (in 12 ms).
Failed to restore C:\Program Files\Epic Games\UE_5.4\Engine\Source\Programs\Shared\EpicGames.Perforce.Managed\EpicGames.Perforce.Managed.csproj (in 10 ms).
Failed to restore C:\GameDevProjects\UE5\GitHub\LearnActionRoguelike\Intermediate\Build\BuildRulesProjects\LearnActionRoguelikeModuleRules\LearnActionRoguelikeModuleRules.csproj (in 13 ms).
Failed to restore C:\Program Files\Epic Games\UE_5.4\Engine\Source\Programs\AutomationTool\Scripts\AutomationScripts.Automation.csproj (in 16 ms).
Failed to restore C:\Program Files\Epic Games\UE_5.4\Engine\Source\Programs\AutomationTool\Linux\Linux.Automation.csproj (in 16 ms).
Failed to restore C:\Program Files\Epic Games\UE_5.4\Engine\Source\Programs\AutomationTool\OneSkyLocalization\OneSkyLocalization.Automation.csproj (in 17 ms).
Failed to restore C:\Program Files\Epic Games\UE_5.4\Engine\Source\Programs\AutomationTool\AutomationUtils\AutomationUtils.Automation.csproj (in 18 ms).
Failed to restore C:\Program Files\Epic Games\UE_5.4\Engine\Source\Programs\AutomationTool\XLocLocalization\XLocLocalization.Automation.csproj (in 23 ms).
Failed to restore C:\Program Files\Epic Games\UE_5.4\Engine\Source\Programs\AutomationTool\Turnkey\Turnkey.Automation.csproj (in 16 ms).
Failed to restore C:\Program Files\Epic Games\UE_5.4\Engine\Source\Programs\AutomationTool\LowLevelTests\LowLevelTests.Automation.csproj (in 23 ms).
Failed to restore C:\Program Files\Epic Games\UE_5.4\Engine\Source\Programs\AutomationTool\TVOS\TVOS.Automation.csproj (in 10 ms).
Failed to restore C:\Program Files\Epic Games\UE_5.4\Engine\Plugins\ScriptPlugin\Source\ScriptGeneratorUbtPlugin\ScriptGeneratorUbtPlugin.ubtplugin.csproj (in 0.9 ms).
Failed to restore C:\Program Files\Epic Games\UE_5.4\Engine\Source\Programs\AutomationTool\BuildGraph\BuildGraph.Automation.csproj (in 24 ms).
Failed to restore C:\Program Files\Epic Games\UE_5.4\Engine\Platforms\VisionOS\Source\Programs\AutomationTool\VisionOS.Automation.csproj (in 10 ms).
Failed to restore C:\Program Files\Epic Games\UE_5.4\Engine\Source\Programs\Shared\EpicGames.BuildGraph\EpicGames.BuildGraph.csproj (in 2 ms).
Failed to restore C:\Program Files\Epic Games\UE_5.4\Engine\Source\Programs\AutomationTool\AutomationTool.csproj (in 7 ms).
Failed to restore C:\Program Files\Epic Games\UE_5.4\Engine\Source\Programs\AutomationTool\Apple\Apple.Automation.csproj (in 7 ms).
Failed to restore C:\Program Files\Epic Games\UE_5.4\Engine\Source\Programs\AutomationTool\SmartlingLocalization\SmartlingLocalization.Automation.csproj (in 8 ms).
Failed to restore C:\Program Files\Epic Games\UE_5.4\Engine\Source\Programs\Shared\EpicGames.IoHash\EpicGames.IoHash.csproj (in 2 ms).
Failed to restore C:\Program Files\Epic Games\UE_5.4\Engine\Source\Programs\AutomationTool\Gauntlet\Gauntlet.Automation.csproj (in 5 ms).
Failed to restore C:\Program Files\Epic Games\UE_5.4\Engine\Source\Programs\AutomationTool\SteamDeck\SteamDeck.Automation.csproj (in 27 ms).
Failed to restore C:\Program Files\Epic Games\UE_5.4\Engine\Source\Programs\Shared\EpicGames.Horde\EpicGames.Horde.csproj (in 3 ms).
Failed to restore C:\Program Files\Epic Games\UE_5.4\Engine\Source\Programs\Shared\EpicGames.AspNet\EpicGames.AspNet.csproj (in 1 ms).
Failed to restore C:\Program Files\Epic Games\UE_5.4\Engine\Source\Programs\AutomationTool\Android\Android.Automation.csproj (in 4 ms).
Failed to restore C:\Program Files\Epic Games\UE_5.4\Engine\Source\Programs\AutomationTool\Mac\Mac.Automation.csproj (in 41 ms).
Failed to restore C:\Program Files\Epic Games\UE_5.4\Engine\Source\Programs\AutomationTool\CrowdinLocalization\CrowdinLocalization.Automation.csproj (in 42 ms).
Failed to restore C:\Program Files\Epic Games\UE_5.4\Engine\Intermediate\Build\BuildRulesProjects\UE5Rules\UE5Rules.csproj (in 4 ms).
Failed to restore C:\Program Files\Epic Games\UE_5.4\Engine\Source\Programs\AutomationTool\IOS\IOS.Automation.csproj (in 45 ms).
Failed to restore C:\Program Files\Epic Games\UE_5.4\Engine\Source\Programs\AutomationTool\CookedEditor\CookedEditor.Automation.csproj (in 49 ms).
Failed to restore C:\Program Files\Epic Games\UE_5.4\Engine\Source\Programs\AutomationTool\Localization\Localization.Automation.csproj (in 51 ms).
Failed to restore C:\Program Files\Epic Games\UE_5.4\Engine\Source\Programs\AutomationTool\Win\Win.Automation.csproj (in 51 ms).
NuGet package restore failed. Please see Error List window for detailed warnings and errors.
1>C:\Program Files\Epic Games\UE_5.4\Engine\Source\Programs\Shared\EpicGames.UBA\EpicGames.UBA.csproj : error NU1101: Unable to find package Microsoft.Extensions.Logging. No packages exist with this id in source(s): Microsoft Visual Studio Offline Packages
1>C:\Program Files\Epic Games\UE_5.4\Engine\Source\Programs\Shared\EpicGames.UBA\EpicGames.UBA.csproj : error NU1102: Unable to find package Microsoft.CSharp with version (>= 4.7.0)
1>C:\Program Files\Epic Games\UE_5.4\Engine\Source\Programs\Shared\EpicGames.UBA\EpicGames.UBA.csproj : error NU1102: - Found 2 version(s) in Microsoft Visual Studio Offline Packages [ Nearest version: 4.0.1 ]
1>Done building project “EpicGames.UBA.csproj” – FAILED.
2>C:\Program Files\Epic Games\UE_5.4\Engine\Source\Programs\Shared\EpicGames.OIDC\EpicGames.OIDC.csproj : error NU1101: Unable to find package Microsoft.Extensions.Configuration.Binder. No packages exist with this id in source(s): Microsoft Visual Studio Offline Packages
2>C:\Program Files\Epic Games\UE_5.4\Engine\Source\Programs\Shared\EpicGames.OIDC\EpicGames.OIDC.csproj : error NU1101: Unable to find package Microsoft.Extensions.Configuration.Json. No packages exist with this id in source(s): Microsoft Visual Studio Offline Packages
2>C:\Program Files\Epic Games\UE_5.4\Engine\Source\Programs\Shared\EpicGames.OIDC\EpicGames.OIDC.csproj : error NU1101: Unable to find package IdentityModel.OidcClient. No packages exist with this id in source(s): Microsoft Visual Studio Offline Packages
2>Done building project “EpicGames.OIDC.csproj” – FAILED.
3>C:\Program Files\Epic Games\UE_5.4\Engine\Source\Programs\Shared\EpicGames.Core\EpicGames.Core.csproj : error NU1101: Unable to find package OpenTracing. No packages exist with this id in source(s): Microsoft Visual Studio Offline Packages
3>C:\Program Files\Epic Games\UE_5.4\Engine\Source\Programs\Shared\EpicGames.Core\EpicGames.Core.csproj : error NU1101: Unable to find package System.Memory. No packages exist with this id in source(s): Microsoft Visual Studio Offline Packages
3>C:\Program Files\Epic Games\UE_5.4\Engine\Source\Programs\Shared\EpicGames.Core\EpicGames.Core.csproj : error NU1101: Unable to find package Microsoft.Extensions.ObjectPool. No packages exist with this id in source(s): Microsoft Visual Studio Offline Packages
3>C:\Program Files\Epic Games\UE_5.4\Engine\Source\Programs\Shared\EpicGames.Core\EpicGames.Core.csproj : error NU1101: Unable to find package Microsoft.Extensions.Logging. No packages exist with this id in source(s): Microsoft Visual Studio Offline Packages
3>C:\Program Files\Epic Games\UE_5.4\Engine\Source\Programs\Shared\EpicGames.Core\EpicGames.Core.csproj : error NU1101: Unable to find package JetBrains.Annotations. No packages exist with this id in source(s): Microsoft Visual Studio Offline Packages
3>C:\Program Files\Epic Games\UE_5.4\Engine\Source\Programs\Shared\EpicGames.Core\EpicGames.Core.csproj : error NU1101: Unable to find package Microsoft.Extensions.Logging.Abstractions. No packages exist with this id in source(s): Microsoft Visual Studio Offline Packages
3>C:\Program Files\Epic Games\UE_5.4\Engine\Source\Programs\Shared\EpicGames.Core\EpicGames.Core.csproj : error NU1101: Unable to find package Microsoft.Extensions.Logging.Console. No packages exist with this id in source(s): Microsoft Visual Studio Offline Packages
3>C:\Program Files\Epic Games\UE_5.4\Engine\Source\Programs\Shared\EpicGames.Core\EpicGames.Core.csproj : error NU1101: Unable to find package Microsoft.Extensions.Configuration. No packages exist with this id in source(s): Microsoft Visual Studio Offline Packages
3>C:\Program Files\Epic Games\UE_5.4\Engine\Source\Programs\Shared\EpicGames.Core\EpicGames.Core.csproj : error NU1101: Unable to find package Microsoft.Extensions.Http.Polly. No packages exist with this id in source(s): Microsoft Visual Studio Offline Packages
3>Done building project “EpicGames.Core.csproj” – FAILED.
4>------ Build started: Project: EpicGames.MsBuild, Configuration: Development Any CPU ------
5>------ Build started: Project: EpicGames.IoHash, Configuration: Development Any CPU ------
4>C:\Program Files\Epic Games\UE_5.4\Engine\Source\Programs\Shared\EpicGames.MsBuild\EpicGames.MsBuild.csproj : error NU1101: Unable to find package Microsoft.Build. No packages exist with this id in source(s): Microsoft Visual Studio Offline Packages
4>C:\Program Files\Epic Games\UE_5.4\Engine\Source\Programs\Shared\EpicGames.MsBuild\EpicGames.MsBuild.csproj : error NU1101: Unable to find package Microsoft.Build.Locator. No packages exist with this id in source(s): Microsoft Visual Studio Offline Packages
4>C:\Program Files\Epic Games\UE_5.4\Engine\Source\Programs\Shared\EpicGames.MsBuild\EpicGames.MsBuild.csproj : error NU1101: Unable to find package OpenTracing. No packages exist with this id in source(s): Microsoft Visual Studio Offline Packages
4>C:\Program Files\Epic Games\UE_5.4\Engine\Source\Programs\Shared\EpicGames.MsBuild\EpicGames.MsBuild.csproj : error NU1101: Unable to find package System.Memory. No packages exist with this id in source(s): Microsoft Visual Studio Offline Packages
4>C:\Program Files\Epic Games\UE_5.4\Engine\Source\Programs\Shared\EpicGames.MsBuild\EpicGames.MsBuild.csproj : error NU1101: Unable to find package Microsoft.Extensions.ObjectPool. No packages exist with this id in source(s): Microsoft Visual Studio Offline Packages
4>C:\Program Files\Epic Games\UE_5.4\Engine\Source\Programs\Shared\EpicGames.MsBuild\EpicGames.MsBuild.csproj : error NU1101: Unable to find package Microsoft.Extensions.Logging. No packages exist with this id in source(s): Microsoft Visual Studio Offline Packages
4>C:\Program Files\Epic Games\UE_5.4\Engine\Source\Programs\Shared\EpicGames.MsBuild\EpicGames.MsBuild.csproj : error NU1101: Unable to find package JetBrains.Annotations. No packages exist with this id in source(s): Microsoft Visual Studio Offline Packages
4>C:\Program Files\Epic Games\UE_5.4\Engine\Source\Programs\Shared\EpicGames.MsBuild\EpicGames.MsBuild.csproj : error NU1101: Unable to find package Microsoft.Extensions.Logging.Abstractions. No packages exist with this id in source(s): Microsoft Visual Studio Offline Packages
4>C:\Program Files\Epic Games\UE_5.4\Engine\Source\Programs\Shared\EpicGames.MsBuild\EpicGames.MsBuild.csproj : error NU1101: Unable to find package Microsoft.Extensions.Logging.Console. No packages exist with this id in source(s): Microsoft Visual Studio Offline Packages
4>C:\Program Files\Epic Games\UE_5.4\Engine\Source\Programs\Shared\EpicGames.MsBuild\EpicGames.MsBuild.csproj : error NU1101: Unable to find package Microsoft.Extensions.Configuration. No packages exist with this id in source(s): Microsoft Visual Studio Offline Packages
4>C:\Program Files\Epic Games\UE_5.4\Engine\Source\Programs\Shared\EpicGames.MsBuild\EpicGames.MsBuild.csproj : error NU1101: Unable to find package Microsoft.Extensions.Http.Polly. No packages exist with this id in source(s): Microsoft Visual Studio Offline Packages
4>Done building project “EpicGames.MsBuild.csproj” – FAILED.
5>C:\Program Files\Epic Games\UE_5.4\Engine\Source\Programs\Shared\EpicGames.IoHash\EpicGames.IoHash.csproj : error NU1101: Unable to find package Blake3. No packages exist with this id in source(s): Microsoft Visual Studio Offline Packages
5>C:\Program Files\Epic Games\UE_5.4\Engine\Source\Programs\Shared\EpicGames.IoHash\EpicGames.IoHash.csproj : error NU1101: Unable to find package System.Memory. No packages exist with this id in source(s): Microsoft Visual Studio Offline Packages
5>C:\Program Files\Epic Games\UE_5.4\Engine\Source\Programs\Shared\EpicGames.IoHash\EpicGames.IoHash.csproj : error NU1101: Unable to find package OpenTracing. No packages exist with this id in source(s): Microsoft Visual Studio Offline Packages
5>C:\Program Files\Epic Games\UE_5.4\Engine\Source\Programs\Shared\EpicGames.IoHash\EpicGames.IoHash.csproj : error NU1101: Unable to find package Microsoft.Extensions.ObjectPool. No packages exist with this id in source(s): Microsoft Visual Studio Offline Packages
5>C:\Program Files\Epic Games\UE_5.4\Engine\Source\Programs\Shared\EpicGames.IoHash\EpicGames.IoHash.csproj : error NU1101: Unable to find package Microsoft.Extensions.Logging. No packages exist with this id in source(s): Microsoft Visual Studio Offline Packages
5>C:\Program Files\Epic Games\UE_5.4\Engine\Source\Programs\Shared\EpicGames.IoHash\EpicGames.IoHash.csproj : error NU1101: Unable to find package JetBrains.Annotations. No packages exist with this id in source(s): Microsoft Visual Studio Offline Packages
5>C:\Program Files\Epic Games\UE_5.4\Engine\Source\Programs\Shared\EpicGames.IoHash\EpicGames.IoHash.csproj : error NU1101: Unable to find package Microsoft.Extensions.Logging.Abstractions. No packages exist with this id in source(s): Microsoft Visual Studio Offline Packages
5>C:\Program Files\Epic Games\UE_5.4\Engine\Source\Programs\Shared\EpicGames.IoHash\EpicGames.IoHash.csproj : error NU1101: Unable to find package Microsoft.Extensions.Logging.Console. No packages exist with this id in source(s): Microsoft Visual Studio Offline Packages
5>C:\Program Files\Epic Games\UE_5.4\Engine\Source\Programs\Shared\EpicGames.IoHash\EpicGames.IoHash.csproj : error NU1101: Unable to find package Microsoft.Extensions.Configuration. No packages exist with this id in source(s): Microsoft Visual Studio Offline Packages
5>C:\Program Files\Epic Games\UE_5.4\Engine\Source\Programs\Shared\EpicGames.IoHash\EpicGames.IoHash.csproj : error NU1101: Unable to find package Microsoft.Extensions.Http.Polly. No packages exist with this id in source(s): Microsoft Visual Studio Offline Packages
5>Done building project “EpicGames.IoHash.csproj” – FAILED.
6>------ Build started: Project: EpicGames.Serialization, Configuration: Development Any CPU ------
7>------ Build started: Project: EpicGames.Build, Configuration: Development Any CPU ------
7>C:\Program Files\Epic Games\UE_5.4\Engine\Source\Programs\Shared\EpicGames.Build\EpicGames.Build.csproj : warning NU1603: EpicGames.Build depends on System.Security.Permissions (>= 4.7.0) but System.Security.Permissions 4.7.0 was not found. An approximate best match of System.Security.Permissions 6.0.0 was resolved.
7>C:\Program Files\Epic Games\UE_5.4\Engine\Source\Programs\Shared\EpicGames.Build\EpicGames.Build.csproj : error NU1101: Unable to find package Microsoft.Extensions.FileSystemGlobbing. No packages exist with this id in source(s): Microsoft Visual Studio Offline Packages
7>C:\Program Files\Epic Games\UE_5.4\Engine\Source\Programs\Shared\EpicGames.Build\EpicGames.Build.csproj : error NU1101: Unable to find package OpenTracing. No packages exist with this id in source(s): Microsoft Visual Studio Offline Packages
7>C:\Program Files\Epic Games\UE_5.4\Engine\Source\Programs\Shared\EpicGames.Build\EpicGames.Build.csproj : error NU1101: Unable to find package System.Memory. No packages exist with this id in source(s): Microsoft Visual Studio Offline Packages
7>C:\Program Files\Epic Games\UE_5.4\Engine\Source\Programs\Shared\EpicGames.Build\EpicGames.Build.csproj : error NU1101: Unable to find package Microsoft.Extensions.ObjectPool. No packages exist with this id in source(s): Microsoft Visual Studio Offline Packages
7>C:\Program Files\Epic Games\UE_5.4\Engine\Source\Programs\Shared\EpicGames.Build\EpicGames.Build.csproj : error NU1101: Unable to find package Microsoft.Extensions.Logging. No packages exist with this id in source(s): Microsoft Visual Studio Offline Packages
7>C:\Program Files\Epic Games\UE_5.4\Engine\Source\Programs\Shared\EpicGames.Build\EpicGames.Build.csproj : error NU1101: Unable to find package JetBrains.Annotations. No packages exist with this id in source(s): Microsoft Visual Studio Offline Packages
7>C:\Program Files\Epic Games\UE_5.4\Engine\Source\Programs\Shared\EpicGames.Build\EpicGames.Build.csproj : error NU1101: Unable to find package Microsoft.Extensions.Logging.Abstractions. No packages exist with this id in source(s): Microsoft Visual Studio Offline Packages
7>C:\Program Files\Epic Games\UE_5.4\Engine\Source\Programs\Shared\EpicGames.Build\EpicGames.Build.csproj : error NU1101: Unable to find package Microsoft.Extensions.Logging.Console. No packages exist with this id in source(s): Microsoft Visual Studio Offline Packages
7>C:\Program Files\Epic Games\UE_5.4\Engine\Source\Programs\Shared\EpicGames.Build\EpicGames.Build.csproj : error NU1101: Unable to find package Microsoft.Extensions.Configuration. No packages exist with this id in source(s): Microsoft Visual Studio Offline Packages
7>C:\Program Files\Epic Games\UE_5.4\Engine\Source\Programs\Shared\EpicGames.Build\EpicGames.Build.csproj : error NU1101: Unable to find package Microsoft.Extensions.Http.Polly. No packages exist with this id in source(s): Microsoft Visual Studio Offline Packages
7>C:\Program Files\Epic Games\UE_5.4\Engine\Source\Programs\Shared\EpicGames.Build\EpicGames.Build.csproj : error NU1101: Unable to find package Blake3. No packages exist with this id in source(s): Microsoft Visual Studio Offline Packages
7>C:\Program Files\Epic Games\UE_5.4\Engine\Source\Programs\Shared\EpicGames.Build\EpicGames.Build.csproj : error NU1102: Unable to find package Microsoft.CSharp with version (>= 4.7.0)
7>C:\Program Files\Epic Games\UE_5.4\Engine\Source\Programs\Shared\EpicGames.Build\EpicGames.Build.csproj : error NU1102: - Found 2 version(s) in Microsoft Visual Studio Offline Packages [ Nearest version: 4.0.1 ]
7>Done building project “EpicGames.Build.csproj” – FAILED.
6>C:\Program Files\Epic Games\UE_5.4\Engine\Source\Programs\Shared\EpicGames.Serialization\EpicGames.Serialization.csproj : error NU1101: Unable to find package Blake3. No packages exist with this id in source(s): Microsoft Visual Studio Offline Packages
6>C:\Program Files\Epic Games\UE_5.4\Engine\Source\Programs\Shared\EpicGames.Serialization\EpicGames.Serialization.csproj : error NU1101: Unable to find package System.Memory. No packages exist with this id in source(s): Microsoft Visual Studio Offline Packages
6>C:\Program Files\Epic Games\UE_5.4\Engine\Source\Programs\Shared\EpicGames.Serialization\EpicGames.Serialization.csproj : error NU1101: Unable to find package OpenTracing. No packages exist with this id in source(s): Microsoft Visual Studio Offline Packages
6>C:\Program Files\Epic Games\UE_5.4\Engine\Source\Programs\Shared\EpicGames.Serialization\EpicGames.Serialization.csproj : error NU1101: Unable to find package Microsoft.Extensions.ObjectPool. No packages exist with this id in source(s): Microsoft Visual Studio Offline Packages
6>C:\Program Files\Epic Games\UE_5.4\Engine\Source\Programs\Shared\EpicGames.Serialization\EpicGames.Serialization.csproj : error NU1101: Unable to find package Microsoft.Extensions.Logging. No packages exist with this id in source(s): Microsoft Visual Studio Offline Packages
6>C:\Program Files\Epic Games\UE_5.4\Engine\Source\Programs\Shared\EpicGames.Serialization\EpicGames.Serialization.csproj : error NU1101: Unable to find package JetBrains.Annotations. No packages exist with this id in source(s): Microsoft Visual Studio Offline Packages
6>C:\Program Files\Epic Games\UE_5.4\Engine\Source\Programs\Shared\EpicGames.Serialization\EpicGames.Serialization.csproj : error NU1101: Unable to find package Microsoft.Extensions.Logging.Abstractions. No packages exist with this id in source(s): Microsoft Visual Studio Offline Packages
6>C:\Program Files\Epic Games\UE_5.4\Engine\Source\Programs\Shared\EpicGames.Serialization\EpicGames.Serialization.csproj : error NU1101: Unable to find package Microsoft.Extensions.Logging.Console. No packages exist with this id in source(s): Microsoft Visual Studio Offline Packages
6>C:\Program Files\Epic Games\UE_5.4\Engine\Source\Programs\Shared\EpicGames.Serialization\EpicGames.Serialization.csproj : error NU1101: Unable to find package Microsoft.Extensions.Configuration. No packages exist with this id in source(s): Microsoft Visual Studio Offline Packages
6>C:\Program Files\Epic Games\UE_5.4\Engine\Source\Programs\Shared\EpicGames.Serialization\EpicGames.Serialization.csproj : error NU1101: Unable to find package Microsoft.Extensions.Http.Polly. No packages exist with this id in source(s): Microsoft Visual Studio Offline Packages
6>Done building project “EpicGames.Serialization.csproj” – FAILED.
8>------ Build started: Project: EpicGames.UHT, Configuration: Development Any CPU ------
9>------ Build started: Project: EpicGames.Horde, Configuration: Development Any CPU ------
8>C:\Program Files\Epic Games\UE_5.4\Engine\Source\Programs\Shared\EpicGames.UHT\EpicGames.UHT.csproj : warning NU1603: EpicGames.Build depends on System.Security.Permissions (>= 4.7.0) but System.Security.Permissions 4.7.0 was not found. An approximate best match of System.Security.Permissions 6.0.0 was resolved.
8>C:\Program Files\Epic Games\UE_5.4\Engine\Source\Programs\Shared\EpicGames.UHT\EpicGames.UHT.csproj : error NU1102: Unable to find package Microsoft.CSharp with version (>= 4.7.0)
8>C:\Program Files\Epic Games\UE_5.4\Engine\Source\Programs\Shared\EpicGames.UHT\EpicGames.UHT.csproj : error NU1102: - Found 2 version(s) in Microsoft Visual Studio Offline Packages [ Nearest version: 4.0.1 ]
8>C:\Program Files\Epic Games\UE_5.4\Engine\Source\Programs\Shared\EpicGames.UHT\EpicGames.UHT.csproj : error NU1101: Unable to find package OpenTracing. No packages exist with this id in source(s): Microsoft Visual Studio Offline Packages
8>C:\Program Files\Epic Games\UE_5.4\Engine\Source\Programs\Shared\EpicGames.UHT\EpicGames.UHT.csproj : error NU1101: Unable to find package System.Memory. No packages exist with this id in source(s): Microsoft Visual Studio Offline Packages
8>C:\Program Files\Epic Games\UE_5.4\Engine\Source\Programs\Shared\EpicGames.UHT\EpicGames.UHT.csproj : error NU1101: Unable to find package Microsoft.Extensions.ObjectPool. No packages exist with this id in source(s): Microsoft Visual Studio Offline Packages
8>C:\Program Files\Epic Games\UE_5.4\Engine\Source\Programs\Shared\EpicGames.UHT\EpicGames.UHT.csproj : error NU1101: Unable to find package Microsoft.Extensions.Logging. No packages exist with this id in source(s): Microsoft Visual Studio Offline Packages
8>C:\Program Files\Epic Games\UE_5.4\Engine\Source\Programs\Shared\EpicGames.UHT\EpicGames.UHT.csproj : error NU1101: Unable to find package JetBrains.Annotations. No packages exist with this id in source(s): Microsoft Visual Studio Offline Packages
8>C:\Program Files\Epic Games\UE_5.4\Engine\Source\Programs\Shared\EpicGames.UHT\EpicGames.UHT.csproj : error NU1101: Unable to find package Microsoft.Extensions.Logging.Abstractions. No packages exist with this id in source(s): Microsoft Visual Studio Offline Packages
8>C:\Program Files\Epic Games\UE_5.4\Engine\Source\Programs\Shared\EpicGames.UHT\EpicGames.UHT.csproj : error NU1101: Unable to find package Microsoft.Extensions.Logging.Console. No packages exist with this id in source(s): Microsoft Visual Studio Offline Packages
8>C:\Program Files\Epic Games\UE_5.4\Engine\Source\Programs\Shared\EpicGames.UHT\EpicGames.UHT.csproj : error NU1101: Unable to find package Microsoft.Extensions.Configuration. No packages exist with this id in source(s): Microsoft Visual Studio Offline Packages
8>C:\Program Files\Epic Games\UE_5.4\Engine\Source\Programs\Shared\EpicGames.UHT\EpicGames.UHT.csproj : error NU1101: Unable to find package Microsoft.Extensions.Http.Polly. No packages exist with this id in source(s): Microsoft Visual Studio Offline Packages
8>C:\Program Files\Epic Games\UE_5.4\Engine\Source\Programs\Shared\EpicGames.UHT\EpicGames.UHT.csproj : error NU1101: Unable to find package Microsoft.Extensions.FileSystemGlobbing. No packages exist with this id in source(s): Microsoft Visual Studio Offline Packages
8>C:\Program Files\Epic Games\UE_5.4\Engine\Source\Programs\Shared\EpicGames.UHT\EpicGames.UHT.csproj : error NU1101: Unable to find package Blake3. No packages exist with this id in source(s): Microsoft Visual Studio Offline Packages
8>Done building project “EpicGames.UHT.csproj” – FAILED.
9>C:\Program Files\Epic Games\UE_5.4\Engine\Source\Programs\Shared\EpicGames.Horde\EpicGames.Horde.csproj : error NU1101: Unable to find package Microsoft.Extensions.Caching.Abstractions. No packages exist with this id in source(s): Microsoft Visual Studio Offline Packages
9>C:\Program Files\Epic Games\UE_5.4\Engine\Source\Programs\Shared\EpicGames.Horde\EpicGames.Horde.csproj : error NU1101: Unable to find package BitFaster.Caching. No packages exist with this id in source(s): Microsoft Visual Studio Offline Packages
9>C:\Program Files\Epic Games\UE_5.4\Engine\Source\Programs\Shared\EpicGames.Horde\EpicGames.Horde.csproj : error NU1101: Unable to find package Microsoft.Extensions.Caching.Memory. No packages exist with this id in source(s): Microsoft Visual Studio Offline Packages
9>C:\Program Files\Epic Games\UE_5.4\Engine\Source\Programs\Shared\EpicGames.Horde\EpicGames.Horde.csproj : error NU1101: Unable to find package Microsoft.Extensions.Http. No packages exist with this id in source(s): Microsoft Visual Studio Offline Packages
9>C:\Program Files\Epic Games\UE_5.4\Engine\Source\Programs\Shared\EpicGames.Horde\EpicGames.Horde.csproj : error NU1101: Unable to find package Microsoft.Data.Sqlite. No packages exist with this id in source(s): Microsoft Visual Studio Offline Packages
9>C:\Program Files\Epic Games\UE_5.4\Engine\Source\Programs\Shared\EpicGames.Horde\EpicGames.Horde.csproj : error NU1101: Unable to find package Microsoft.VisualStudio.Threading.Analyzers. No packages exist with this id in source(s): Microsoft Visual Studio Offline Packages
9>C:\Program Files\Epic Games\UE_5.4\Engine\Source\Programs\Shared\EpicGames.Horde\EpicGames.Horde.csproj : error NU1101: Unable to find package Microsoft.CodeAnalysis.CSharp.Workspaces. No packages exist with this id in source(s): Microsoft Visual Studio Offline Packages
9>C:\Program Files\Epic Games\UE_5.4\Engine\Source\Programs\Shared\EpicGames.Horde\EpicGames.Horde.csproj : error NU1101: Unable to find package Microsoft.Extensions.Logging. No packages exist with this id in source(s): Microsoft Visual Studio Offline Packages
9>C:\Program Files\Epic Games\UE_5.4\Engine\Source\Programs\Shared\EpicGames.Horde\EpicGames.Horde.csproj : error NU1101: Unable to find package K4os.Compression.LZ4. No packages exist with this id in source(s): Microsoft Visual Studio Offline Packages
9>C:\Program Files\Epic Games\UE_5.4\Engine\Source\Programs\Shared\EpicGames.Horde\EpicGames.Horde.csproj : error NU1101: Unable to find package Microsoft.Extensions.Http.Polly. No packages exist with this id in source(s): Microsoft Visual Studio Offline Packages
9>C:\Program Files\Epic Games\UE_5.4\Engine\Source\Programs\Shared\EpicGames.Horde\EpicGames.Horde.csproj : error NU1101: Unable to find package Dapper. No packages exist with this id in source(s): Microsoft Visual Studio Offline Packages
9>C:\Program Files\Epic Games\UE_5.4\Engine\Source\Programs\Shared\EpicGames.Horde\EpicGames.Horde.csproj : error NU1101: Unable to find package Microsoft.Extensions.Configuration.Binder. No packages exist with this id in source(s): Microsoft Visual Studio Offline Packages
9>C:\Program Files\Epic Games\UE_5.4\Engine\Source\Programs\Shared\EpicGames.Horde\EpicGames.Horde.csproj : error NU1101: Unable to find package Microsoft.Extensions.Configuration.Json. No packages exist with this id in source(s): Microsoft Visual Studio Offline Packages
9>C:\Program Files\Epic Games\UE_5.4\Engine\Source\Programs\Shared\EpicGames.Horde\EpicGames.Horde.csproj : error NU1101: Unable to find package IdentityModel.OidcClient. No packages exist with this id in source(s): Microsoft Visual Studio Offline Packages
9>C:\Program Files\Epic Games\UE_5.4\Engine\Source\Programs\Shared\EpicGames.Horde\EpicGames.Horde.csproj : error NU1101: Unable to find package OpenTracing. No packages exist with this id in source(s): Microsoft Visual Studio Offline Packages
9>C:\Program Files\Epic Games\UE_5.4\Engine\Source\Programs\Shared\EpicGames.Horde\EpicGames.Horde.csproj : error NU1101: Unable to find package System.Memory. No packages exist with this id in source(s): Microsoft Visual Studio Offline Packages
9>C:\Program Files\Epic Games\UE_5.4\Engine\Source\Programs\Shared\EpicGames.Horde\EpicGames.Horde.csproj : error NU1101: Unable to find package Microsoft.Extensions.ObjectPool. No packages exist with this id in source(s): Microsoft Visual Studio Offline Packages
9>C:\Program Files\Epic Games\UE_5.4\Engine\Source\Programs\Shared\EpicGames.Horde\EpicGames.Horde.csproj : error NU1101: Unable to find package JetBrains.Annotations. No packages exist with this id in source(s): Microsoft Visual Studio Offline Packages
9>C:\Program Files\Epic Games\UE_5.4\Engine\Source\Programs\Shared\EpicGames.Horde\EpicGames.Horde.csproj : error NU1101: Unable to find package Microsoft.Extensions.Logging.Abstractions. No packages exist with this id in source(s): Microsoft Visual Studio Offline Packages
9>C:\Program Files\Epic Games\UE_5.4\Engine\Source\Programs\Shared\EpicGames.Horde\EpicGames.Horde.csproj : error NU1101: Unable to find package Microsoft.Extensions.Logging.Console. No packages exist with this id in source(s): Microsoft Visual Studio Offline Packages
9>C:\Program Files\Epic Games\UE_5.4\Engine\Source\Programs\Shared\EpicGames.Horde\EpicGames.Horde.csproj : error NU1101: Unable to find package Microsoft.Extensions.Configuration. No packages exist with this id in source(s): Microsoft Visual Studio Offline Packages
9>C:\Program Files\Epic Games\UE_5.4\Engine\Source\Programs\Shared\EpicGames.Horde\EpicGames.Horde.csproj : error NU1101: Unable to find package Blake3. No packages exist with this id in source(s): Microsoft Visual Studio Offline Packages
9>Done building project “EpicGames.Horde.csproj” – FAILED.
10>------ Build started: Project: UnrealBuildTool, Configuration: Development Any CPU ------
10>C:\Program Files\Epic Games\UE_5.4\Engine\Source\Programs\UnrealBuildTool\UnrealBuildTool.csproj : warning NU1603: EpicGames.Build depends on System.Security.Permissions (>= 4.7.0) but System.Security.Permissions 4.7.0 was not found. An approximate best match of System.Security.Permissions 6.0.0 was resolved.
10>C:\Program Files\Epic Games\UE_5.4\Engine\Source\Programs\UnrealBuildTool\UnrealBuildTool.csproj : error NU1101: Unable to find package System.Management. No packages exist with this id in source(s): Microsoft Visual Studio Offline Packages
10>C:\Program Files\Epic Games\UE_5.4\Engine\Source\Programs\UnrealBuildTool\UnrealBuildTool.csproj : error NU1101: Unable to find package Microsoft.Build. No packages exist with this id in source(s): Microsoft Visual Studio Offline Packages
10>C:\Program Files\Epic Games\UE_5.4\Engine\Source\Programs\UnrealBuildTool\UnrealBuildTool.csproj : error NU1101: Unable to find package System.ServiceProcess.ServiceController. No packages exist with this id in source(s): Microsoft Visual Studio Offline Packages
10>C:\Program Files\Epic Games\UE_5.4\Engine\Source\Programs\UnrealBuildTool\UnrealBuildTool.csproj : error NU1101: Unable to find package Microsoft.Build.Locator. No packages exist with this id in source(s): Microsoft Visual Studio Offline Packages
10>C:\Program Files\Epic Games\UE_5.4\Engine\Source\Programs\UnrealBuildTool\UnrealBuildTool.csproj : error NU1101: Unable to find package Microsoft.Extensions.Logging.Console. No packages exist with this id in source(s): Microsoft Visual Studio Offline Packages
10>C:\Program Files\Epic Games\UE_5.4\Engine\Source\Programs\UnrealBuildTool\UnrealBuildTool.csproj : error NU1101: Unable to find package Microsoft.Extensions.Caching.Abstractions. No packages exist with this id in source(s): Microsoft Visual Studio Offline Packages
10>C:\Program Files\Epic Games\UE_5.4\Engine\Source\Programs\UnrealBuildTool\UnrealBuildTool.csproj : error NU1101: Unable to find package BitFaster.Caching. No packages exist with this id in source(s): Microsoft Visual Studio Offline Packages
10>C:\Program Files\Epic Games\UE_5.4\Engine\Source\Programs\UnrealBuildTool\UnrealBuildTool.csproj : error NU1101: Unable to find package Microsoft.Extensions.Caching.Memory. No packages exist with this id in source(s): Microsoft Visual Studio Offline Packages
10>C:\Program Files\Epic Games\UE_5.4\Engine\Source\Programs\UnrealBuildTool\UnrealBuildTool.csproj : error NU1101: Unable to find package Microsoft.Extensions.Http. No packages exist with this id in source(s): Microsoft Visual Studio Offline Packages
10>C:\Program Files\Epic Games\UE_5.4\Engine\Source\Programs\UnrealBuildTool\UnrealBuildTool.csproj : error NU1101: Unable to find package Microsoft.Data.Sqlite. No packages exist with this id in source(s): Microsoft Visual Studio Offline Packages
10>C:\Program Files\Epic Games\UE_5.4\Engine\Source\Programs\UnrealBuildTool\UnrealBuildTool.csproj : error NU1101: Unable to find package Microsoft.CodeAnalysis.CSharp.Workspaces. No packages exist with this id in source(s): Microsoft Visual Studio Offline Packages
10>C:\Program Files\Epic Games\UE_5.4\Engine\Source\Programs\UnrealBuildTool\UnrealBuildTool.csproj : error NU1101: Unable to find package Microsoft.Extensions.Logging. No packages exist with this id in source(s): Microsoft Visual Studio Offline Packages
10>C:\Program Files\Epic Games\UE_5.4\Engine\Source\Programs\UnrealBuildTool\UnrealBuildTool.csproj : error NU1101: Unable to find package K4os.Compression.LZ4. No packages exist with this id in source(s): Microsoft Visual Studio Offline Packages
10>C:\Program Files\Epic Games\UE_5.4\Engine\Source\Programs\UnrealBuildTool\UnrealBuildTool.csproj : error NU1101: Unable to find package Microsoft.Extensions.Http.Polly. No packages exist with this id in source(s): Microsoft Visual Studio Offline Packages
10>C:\Program Files\Epic Games\UE_5.4\Engine\Source\Programs\UnrealBuildTool\UnrealBuildTool.csproj : error NU1101: Unable to find package Dapper. No packages exist with this id in source(s): Microsoft Visual Studio Offline Packages
10>C:\Program Files\Epic Games\UE_5.4\Engine\Source\Programs\UnrealBuildTool\UnrealBuildTool.csproj : error NU1101: Unable to find package Microsoft.Extensions.FileSystemGlobbing. No packages exist with this id in source(s): Microsoft Visual Studio Offline Packages
10>C:\Program Files\Epic Games\UE_5.4\Engine\Source\Programs\UnrealBuildTool\UnrealBuildTool.csproj : error NU1101: Unable to find package Blake3. No packages exist with this id in source(s): Microsoft Visual Studio Offline Packages
10>C:\Program Files\Epic Games\UE_5.4\Engine\Source\Programs\UnrealBuildTool\UnrealBuildTool.csproj : error NU1101: Unable to find package System.Memory. No packages exist with this id in source(s): Microsoft Visual Studio Offline Packages
10>C:\Program Files\Epic Games\UE_5.4\Engine\Source\Programs\UnrealBuildTool\UnrealBuildTool.csproj : error NU1101: Unable to find package OpenTracing. No packages exist with this id in source(s): Microsoft Visual Studio Offline Packages
10>C:\Program Files\Epic Games\UE_5.4\Engine\Source\Programs\UnrealBuildTool\UnrealBuildTool.csproj : error NU1101: Unable to find package Microsoft.Extensions.ObjectPool. No packages exist with this id in source(s): Microsoft Visual Studio Offline Packages
10>C:\Program Files\Epic Games\UE_5.4\Engine\Source\Programs\UnrealBuildTool\UnrealBuildTool.csproj : error NU1101: Unable to find package JetBrains.Annotations. No packages exist with this id in source(s): Microsoft Visual Studio Offline Packages
10>C:\Program Files\Epic Games\UE_5.4\Engine\Source\Programs\UnrealBuildTool\UnrealBuildTool.csproj : error NU1101: Unable to find package Microsoft.Extensions.Logging.Abstractions. No packages exist with this id in source(s): Microsoft Visual Studio Offline Packages
10>C:\Program Files\Epic Games\UE_5.4\Engine\Source\Programs\UnrealBuildTool\UnrealBuildTool.csproj : error NU1101: Unable to find package Microsoft.Extensions.Configuration. No packages exist with this id in source(s): Microsoft Visual Studio Offline Packages
10>C:\Program Files\Epic Games\UE_5.4\Engine\Source\Programs\UnrealBuildTool\UnrealBuildTool.csproj : error NU1101: Unable to find package Microsoft.Extensions.Configuration.Binder. No packages exist with this id in source(s): Microsoft Visual Studio Offline Packages
10>C:\Program Files\Epic Games\UE_5.4\Engine\Source\Programs\UnrealBuildTool\UnrealBuildTool.csproj : error NU1101: Unable to find package Microsoft.Extensions.Configuration.Json. No packages exist with this id in source(s): Microsoft Visual Studio Offline Packages
10>C:\Program Files\Epic Games\UE_5.4\Engine\Source\Programs\UnrealBuildTool\UnrealBuildTool.csproj : error NU1101: Unable to find package IdentityModel.OidcClient. No packages exist with this id in source(s): Microsoft Visual Studio Offline Packages
10>C:\Program Files\Epic Games\UE_5.4\Engine\Source\Programs\UnrealBuildTool\UnrealBuildTool.csproj : error NU1102: Unable to find package Microsoft.CSharp with version (>= 4.7.0)
10>C:\Program Files\Epic Games\UE_5.4\Engine\Source\Programs\UnrealBuildTool\UnrealBuildTool.csproj : error NU1102: - Found 2 version(s) in Microsoft Visual Studio Offline Packages [ Nearest version: 4.0.1 ]
10>Done building project “UnrealBuildTool.csproj” – FAILED.
11>------ Build started: Project: LearnActionRoguelike, Configuration: Development_Editor x64 ------
11>Using bundled DotNet SDK version: 6.0.302
11>Running UnrealBuildTool: dotnet “…..\Engine\Binaries\DotNET\UnrealBuildTool\UnrealBuildTool.dll” LearnActionRoguelikeEditor Win64 Development -Project=“C:\GameDevProjects\UE5\GitHub\LearnActionRoguelike\LearnActionRoguelike.uproject” -WaitMutex -FromMsBuild -architecture=x64
11>Log file: C:\Users\parry\AppData\Local\UnrealBuildTool\Log.txt
11>Using ‘git status’ to determine working set for adaptive non-unity build (C:\GameDevProjects\UE5\GitHub\LearnActionRoguelike).
11>Target is up to date
11>Total execution time: 13.52 seconds
========== Build: 1 succeeded, 10 failed, 1 up-to-date, 0 skipped ==========
========== Build completed at 08:14 and took 17.817 seconds ==========

1 Like
2

I have this same issue but I already have NuGet setup and selected. I followed your instructions nevertheless but I still get the same results. :frowning:

Any advice?

my error are mostly NU1605, CS0006, NU1903 etc. All of them are marked “Warning As Error” but I have 69 of them and I get 6 Packages that failed to build :frowning:

5>C:\Users\xbox.nuget\packages\microsoft.extensions.dependencyinjection.abstractions\9.0.0\buildTransitive\netcoreapp2.0\Microsoft.Extensions.DependencyInjection.Abstractions.targets(4,5): warning : Microsoft.Extensions.DependencyInjection.Abstractions 9.0.0 doesn’t support net6.0 and has not been tested with it. Consider upgrading your TargetFramework to net8.0 or later. You may also set true in the project file to ignore this warning and attempt to run in this unsupported configuration at your own risk.
5>C:\Users\xbox.nuget\packages\microsoft.extensions.options\9.0.0\buildTransitive\netcoreapp2.0\Microsoft.Extensions.Options.targets(4,5): warning : Microsoft.Extensions.Options 9.0.0 doesn’t support net6.0 and has not been tested with it. Consider upgrading your TargetFramework to net8.0 or later. You may also set true in the project file to ignore this warning and attempt to run in this unsupported configuration at your own risk.
5>C:\Users\xbox.nuget\packages\microsoft.extensions.configuration.abstractions\9.0.0\buildTransitive\netcoreapp2.0\Microsoft.Extensions.Configuration.Abstractions.targets(4,5): warning : Microsoft.Extensions.Configuration.Abstractions 9.0.0 doesn’t support net6.0 and has not been tested with it. Consider upgrading your TargetFramework to net8.0 or later. You may also set true in the project file to ignore this warning and attempt to run in this unsupported configuration at your own risk.
5>C:\Users\xbox.nuget\packages\microsoft.extensions.options.configurationextensions\9.0.0\buildTransitive\netcoreapp2.0\Microsoft.Extensions.Options.ConfigurationExtensions.targets(4,5): warning : Microsoft.Extensions.Options.ConfigurationExtensions 9.0.0 doesn’t support net6.0 and has not been tested with it. Consider upgrading your TargetFramework to net8.0 or later. You may also set true in the project file to ignore this warning and attempt to run in this unsupported configuration at your own risk.
5>C:\Users\xbox.nuget\packages\microsoft.extensions.logging.abstractions\9.0.0\buildTransitive\netcoreapp2.0\Microsoft.Extensions.Logging.Abstractions.targets(4,5): warning : Microsoft.Extensions.Logging.Abstractions 9.0.0 doesn’t support net6.0 and has not been tested with it. Consider upgrading your TargetFramework to net8.0 or later. You may also set true in the project file to ignore this warning and attempt to run in this unsupported configuration at your own risk.
5>C:\Users\xbox.nuget\packages\microsoft.extensions.dependencyinjection\9.0.0\buildTransitive\netcoreapp2.0\Microsoft.Extensions.DependencyInjection.targets(4,5): warning : Microsoft.Extensions.DependencyInjection 9.0.0 doesn’t support net6.0 and has not been tested with it. Consider upgrading your TargetFramework to net8.0 or later. You may also set true in the project file to ignore this warning and attempt to run in this unsupported configuration at your own risk.
5>C:\Users\xbox.nuget\packages\microsoft.extensions.logging\9.0.0\buildTransitive\netcoreapp2.0\Microsoft.Extensions.Logging.targets(4,5): warning : Microsoft.Extensions.Logging 9.0.0 doesn’t support net6.0 and has not been tested with it. Consider upgrading your TargetFramework to net8.0 or later. You may also set true in the project file to ignore this warning and attempt to run in this unsupported configuration at your own risk.
5>C:\Users\xbox.nuget\packages\microsoft.extensions.configuration\9.0.0\buildTransitive\netcoreapp2.0\Microsoft.Extensions.Configuration.targets(4,5): warning : Microsoft.Extensions.Configuration 9.0.0 doesn’t support net6.0 and has not been tested with it. Consider upgrading your TargetFramework to net8.0 or later. You may also set true in the project file to ignore this warning and attempt to run in this unsupported configuration at your own risk.
5>C:\Users\xbox.nuget\packages\microsoft.extensions.logging.configuration\9.0.0\buildTransitive\netcoreapp2.0\Microsoft.Extensions.Logging.Configuration.targets(4,5): warning : Microsoft.Extensions.Logging.Configuration 9.0.0 doesn’t support net6.0 and has not been tested with it. Consider upgrading your TargetFramework to net8.0 or later. You may also set true in the project file to ignore this warning and attempt to run in this unsupported configuration at your own risk.
5>C:\Users\xbox.nuget\packages\microsoft.extensions.logging.console\9.0.0\buildTransitive\netcoreapp2.0\Microsoft.Extensions.Logging.Console.targets(4,5): warning : Microsoft.Extensions.Logging.Console 9.0.0 doesn’t support net6.0 and has not been tested with it. Consider upgrading your TargetFramework to net8.0 or later. You may also set true in the project file to ignore this warning and attempt to run in this unsupported configuration at your own risk.
5>C:\Users\xbox.nuget\packages\microsoft.extensions.http\9.0.0\buildTransitive\netcoreapp2.0\Microsoft.Extensions.Http.targets(4,5): warning : Microsoft.Extensions.Http 9.0.0 doesn’t support net6.0 and has not been tested with it. Consider upgrading your TargetFramework to net8.0 or later. You may also set true in the project file to ignore this warning and attempt to run in this unsupported configuration at your own risk.
5>CSC : error CS0006: Metadata file ‘D:\Epic Games\UE_5.4\Engine\Source\Programs\Shared\EpicGames.Build\bin\Development\net6.0\ref\EpicGames.Build.dll’ could not be found
5>CSC : error CS0006: Metadata file ‘D:\Epic Games\UE_5.4\Engine\Source\Programs\Shared\EpicGames.IoHash\obj\Development\net6.0\ref\EpicGames.IoHash.dll’ could not be found
5>Done building project “EpicGames.UHT.csproj” – FAILED.
6>------ Build started: Project: UnrealBuildTool, Configuration: Development Any CPU ------
6>C:\Users\xbox.nuget\packages\system.diagnostics.diagnosticsource\9.0.0\buildTransitive\netcoreapp2.0\System.Diagnostics.DiagnosticSource.targets(4,5): warning : System.Diagnostics.DiagnosticSource 9.0.0 doesn’t support net6.0 and has not been tested with it. Consider upgrading your TargetFramework to net8.0 or later. You may also set true in the project file to ignore this warning and attempt to run in this unsupported configuration at your own risk.
6>C:\Users\xbox.nuget\packages\microsoft.extensions.primitives\9.0.0\buildTransitive\netcoreapp2.0\Microsoft.Extensions.Primitives.targets(4,5): warning : Microsoft.Extensions.Primitives 9.0.0 doesn’t support net6.0 and has not been tested with it. Consider upgrading your TargetFramework to net8.0 or later. You may also set true in the project file to ignore this warning and attempt to run in this unsupported configuration at your own risk.
6>C:\Users\xbox.nuget\packages\microsoft.extensions.dependencyinjection.abstractions\9.0.0\buildTransitive\netcoreapp2.0\Microsoft.Extensions.DependencyInjection.Abstractions.targets(4,5): warning : Microsoft.Extensions.DependencyInjection.Abstractions 9.0.0 doesn’t support net6.0 and has not been tested with it. Consider upgrading your TargetFramework to net8.0 or later. You may also set true in the project file to ignore this warning and attempt to run in this unsupported configuration at your own risk.
6>C:\Users\xbox.nuget\packages\microsoft.extensions.options\9.0.0\buildTransitive\netcoreapp2.0\Microsoft.Extensions.Options.targets(4,5): warning : Microsoft.Extensions.Options 9.0.0 doesn’t support net6.0 and has not been tested with it. Consider upgrading your TargetFramework to net8.0 or later. You may also set true in the project file to ignore this warning and attempt to run in this unsupported configuration at your own risk.
6>C:\Users\xbox.nuget\packages\microsoft.extensions.configuration.abstractions\9.0.0\buildTransitive\netcoreapp2.0\Microsoft.Extensions.Configuration.Abstractions.targets(4,5): warning : Microsoft.Extensions.Configuration.Abstractions 9.0.0 doesn’t support net6.0 and has not been tested with it. Consider upgrading your TargetFramework to net8.0 or later. You may also set true in the project file to ignore this warning and attempt to run in this unsupported configuration at your own risk.
6>C:\Users\xbox.nuget\packages\microsoft.extensions.logging.abstractions\9.0.0\buildTransitive\netcoreapp2.0\Microsoft.Extensions.Logging.Abstractions.targets(4,5): warning : Microsoft.Extensions.Logging.Abstractions 9.0.0 doesn’t support net6.0 and has not been tested with it. Consider upgrading your TargetFramework to net8.0 or later. You may also set true in the project file to ignore this warning and attempt to run in this unsupported configuration at your own risk.
6>C:\Users\xbox.nuget\packages\microsoft.extensions.dependencyinjection\9.0.0\buildTransitive\netcoreapp2.0\Microsoft.Extensions.DependencyInjection.targets(4,5): warning : Microsoft.Extensions.DependencyInjection 9.0.0 doesn’t support net6.0 and has not been tested with it. Consider upgrading your TargetFramework to net8.0 or later. You may also set true in the project file to ignore this warning and attempt to run in this unsupported configuration at your own risk.
6>C:\Users\xbox.nuget\packages\microsoft.extensions.logging\9.0.0\buildTransitive\netcoreapp2.0\Microsoft.Extensions.Logging.targets(4,5): warning : Microsoft.Extensions.Logging 9.0.0 doesn’t support net6.0 and has not been tested with it. Consider upgrading your TargetFramework to net8.0 or later. You may also set true in the project file to ignore this warning and attempt to run in this unsupported configuration at your own risk.
6>C:\Users\xbox.nuget\packages\microsoft.extensions.configuration\9.0.0\buildTransitive\netcoreapp2.0\Microsoft.Extensions.Configuration.targets(4,5): warning : Microsoft.Extensions.Configuration 9.0.0 doesn’t support net6.0 and has not been tested with it. Consider upgrading your TargetFramework to net8.0 or later. You may also set true in the project file to ignore this warning and attempt to run in this unsupported configuration at your own risk.
6>C:\Users\xbox.nuget\packages\microsoft.extensions.http\9.0.0\buildTransitive\netcoreapp2.0\Microsoft.Extensions.Http.targets(4,5): warning : Microsoft.Extensions.Http 9.0.0 doesn’t support net6.0 and has not been tested with it. Consider upgrading your TargetFramework to net8.0 or later. You may also set true in the project file to ignore this warning and attempt to run in this unsupported configuration at your own risk.
6>D:\Epic Games\UE_5.4\Engine\Source\Programs\UnrealBuildTool\UnrealBuildTool.csproj : warning NU1903: Package ‘Microsoft.Extensions.Caching.Memory’ 6.0.1 has a known high severity vulnerability, Microsoft Security Advisory CVE-2024-43483 | .NET Denial of Service Vulnerability · CVE-2024-43483 · GitHub Advisory Database · GitHub
6>D:\Epic Games\UE_5.4\Engine\Source\Programs\UnrealBuildTool\UnrealBuildTool.csproj : warning NU1903: Package ‘System.Net.Http’ 4.3.0 has a known high severity vulnerability, .NET Core Information Disclosure · CVE-2018-8292 · GitHub Advisory Database · GitHub
6>D:\Epic Games\UE_5.4\Engine\Source\Programs\UnrealBuildTool\UnrealBuildTool.csproj : warning NU1903: Package ‘System.Text.Json’ 6.0.0 has a known high severity vulnerability, Microsoft Security Advisory CVE-2024-43485 | .NET Denial of Service Vulnerability · CVE-2024-43485 · GitHub Advisory Database · GitHub
6>D:\Epic Games\UE_5.4\Engine\Source\Programs\UnrealBuildTool\UnrealBuildTool.csproj : warning NU1903: Package ‘System.Text.RegularExpressions’ 4.3.0 has a known high severity vulnerability, Regular Expression Denial of Service in System.Text.RegularExpressions · CVE-2019-0820 · GitHub Advisory Database · GitHub
6>D:\Epic Games\UE_5.4\Engine\Source\Programs\UnrealBuildTool\UnrealBuildTool.csproj : error NU1605: Warning As Error: Detected package downgrade: Microsoft.Extensions.Logging.Console from 9.0.0 to 6.0.0. Reference the package directly from the project to select a different version.
6>D:\Epic Games\UE_5.4\Engine\Source\Programs\UnrealBuildTool\UnrealBuildTool.csproj : error NU1605: UnrealBuildTool → EpicGames.Core → Microsoft.Extensions.Logging.Console (>= 9.0.0)
6>D:\Epic Games\UE_5.4\Engine\Source\Programs\UnrealBuildTool\UnrealBuildTool.csproj : error NU1605: UnrealBuildTool → Microsoft.Extensions.Logging.Console (>= 6.0.0)
6>Done building project “UnrealBuildTool.csproj” – FAILED.

EDIT:
I tried deleting everything except for the Source, Plugins and Content folders and then changing my project to 5.5. That worked for me. Well, mostly…

Just to clarify on the OP, I had NuGet and Microsoft as sources in my project and I had it set to “All”. This resulted in me still having 3 errors. I then changed it from All to NuGet and rebuilt my project. THAT worked. Who knew? :open_mouth:

3

I have the same problem.Can anyone help me to solve this problem?