Im having past days those problems. I already uninstalled and installed but it’s not working
The command ““C:\Program Files\Epic Games\UE_5.5\Engine\Build\BatchFiles\Build.bat” LyraEditor Win64 Development -Project=“C:\Users\liqui\Documents\Unreal Projects\LyraStarterGame\LyraStarterGame.uproject” -WaitMutex -FromMsBuild -architecture=x64” exited with code 6.
Project ‘C:\Program Files\Epic Games\UE_5.5\Engine\Source\Programs\AutomationTool\AutomationUtils\AutomationUtils.Automation.csproj’ targets ‘net8.0’. It cannot be referenced by a project that targets ‘.NETCoreApp,Version=v6.0’.
Project ‘C:\Program Files\Epic Games\UE_5.5\Engine\Source\Programs\AutomationTool\CrowdinLocalization\CrowdinLocalization.Automation.csproj’ targets ‘net8.0’. It cannot be referenced by a project that targets ‘.NETCoreApp,Version=v6.0’.
Project ‘C:\Program Files\Epic Games\UE_5.5\Engine\Source\Programs\AutomationTool\Localization\Localization.Automation.csproj’ targets ‘net8.0’. It cannot be referenced by a project that targets ‘.NETCoreApp,Version=v6.0’.
Project ‘C:\Program Files\Epic Games\UE_5.5\Engine\Source\Programs\AutomationTool\OneSkyLocalization\OneSkyLocalization.Automation.csproj’ targets ‘net8.0’. It cannot be referenced by a project that targets ‘.NETCoreApp,Version=v6.0’.
Project ‘C:\Program Files\Epic Games\UE_5.5\Engine\Source\Programs\AutomationTool\XLocLocalization\XLocLocalization.Automation.csproj’ targets ‘net8.0’. It cannot be referenced by a project that targets ‘.NETCoreApp,Version=v6.0’.
Project ‘C:\Program Files\Epic Games\UE_5.5\Engine\Source\Programs\Shared\EpicGames.Core\EpicGames.Core.csproj’ targets ‘net8.0’. It cannot be referenced by a project that targets ‘.NETCoreApp,Version=v6.0’.
Project ‘C:\Program Files\Epic Games\UE_5.5\Engine\Source\Programs\AutomationTool\Gauntlet\Gauntlet.Automation.csproj’ targets ‘net8.0’. It cannot be referenced by a project that targets ‘.NETCoreApp,Version=v6.0’.
Project ‘C:\Program Files\Epic Games\UE_5.5\Engine\Source\Programs\UnrealBuildTool\UnrealBuildTool.csproj’ targets ‘net8.0’. It cannot be referenced by a project that targets ‘.NETCoreApp,Version=v6.0’.
Project Localization.Automation is not compatible with net6.0 (.NETCoreApp,Version=v6.0). Project Localization.Automation supports: net8.0 (.NETCoreApp,Version=v8.0)
Project AutomationUtils.Automation is not compatible with net6.0 (.NETCoreApp,Version=v6.0). Project AutomationUtils.Automation supports: net8.0 (.NETCoreApp,Version=v8.0)
Project EpicGames.Core is not compatible with net6.0 (.NETCoreApp,Version=v6.0). Project EpicGames.Core supports: net8.0 (.NETCoreApp,Version=v8.0)
Project OneSkyLocalization.Automation is not compatible with net6.0 (.NETCoreApp,Version=v6.0). Project OneSkyLocalization.Automation supports: net8.0 (.NETCoreApp,Version=v8.0)
Project XLocLocalization.Automation is not compatible with net6.0 (.NETCoreApp,Version=v6.0). Project XLocLocalization.Automation supports: net8.0 (.NETCoreApp,Version=v8.0)
Project CrowdinLocalization.Automation is not compatible with net6.0 (.NETCoreApp,Version=v6.0). Project CrowdinLocalization.Automation supports: net8.0 (.NETCoreApp,Version=v8.0)
Project UnrealBuildTool is not compatible with net6.0 (.NETCoreApp,Version=v6.0). Project UnrealBuildTool supports: net8.0 (.NETCoreApp,Version=v8.0)
Project Gauntlet.Automation is not compatible with net6.0 (.NETCoreApp,Version=v6.0). Project Gauntlet.Automation supports: net8.0 (.NETCoreApp,Version=v8.0)
The type name ‘cxademangle’ only contains lower-cased ascii characters. Such names may become reserved for the language.
The type name ‘detex’ only contains lower-cased ascii characters. Such names may become reserved for the language.
The type name ‘libunwind’ only contains lower-cased ascii characters. Such names may become reserved for the language.
The type name ‘astcenc’ only contains lower-cased ascii characters. Such names may become reserved for the language.
The type name ‘coremod’ only contains lower-cased ascii characters. Such names may become reserved for the language.
The type name ‘heapprofd’ only contains lower-cased ascii characters. Such names may become reserved for the language.
The type name ‘jemalloc’ only contains lower-cased ascii characters. Such names may become reserved for the language.
The type name ‘libav’ only contains lower-cased ascii characters. Such names may become reserved for the language.
The type name ‘libcurl’ only contains lower-cased ascii characters. Such names may become reserved for the language.
The type name ‘libpas’ only contains lower-cased ascii characters. Such names may become reserved for the language.
The type name ‘libstrophe’ only contains lower-cased ascii characters. Such names may become reserved for the language.
The type name ‘libzip’ only contains lower-cased ascii characters. Such names may become reserved for the language.
The type name ‘metis’ only contains lower-cased ascii characters. Such names may become reserved for the language.
The type name ‘mimalloc’ only contains lower-cased ascii characters. Such names may become reserved for the language.
The type name ‘nanoflann’ only contains lower-cased ascii characters. Such names may become reserved for the language.
The type name ‘portmidi’ only contains lower-cased ascii characters. Such names may become reserved for the language.
The type name ‘xxhash’ only contains lower-cased ascii characters. Such names may become reserved for the language.
The type name ‘zlib’ only contains lower-cased ascii characters. Such names may become reserved for the language.
The element ‘Configuration’ in namespace ‘https://www.unrealengine.com/BuildConfiguration’ has invalid child element ‘DotNetPlatform’ in namespace ‘https://www.unrealengine.com/BuildConfiguration’. List of possible elements expected: ‘BuildConfiguration, UEBuildConfiguration, ModuleConfiguration, TargetRules, UnrealBuildAccelerator, TestTargetRules, FASTBuild, ParallelExecutor, SNDBS, Horde, XGE, BuildMode, ProjectFileGenerator, IOSToolChain, WindowsTargetRules, CLionGenerator, CMakefileGenerator, CodeLiteGenerator, EddieProjectFileGenerator, KDevelopGenerator, MakefileGenerator, QMakefileGenerator, RiderProjectFileGenerator, VSCodeProjectFileGenerator, VCMacProjectFileGenerator, VSWorkspaceProjectFileGenerator, VCProjectFileGenerator, XcodeProjectFileGenerator, SourceFileWorkingSet, RemoteMac, Log, Telemetry’ in namespace ‘https://www.unrealengine.com/BuildConfiguration’.
Visual Studio 2022 compiler is not a preferred version
‘FBoneMirrorInfo’: FBoneMirrorInfo is deprecated. Please use UMirrorDataTable for mirroring support. Please update your code to the new API before upgrading to the next release, otherwise your project will no longer compile.
‘AddPlayerMappableConfig’: is not a member of ‘UEnhancedInputLocalPlayerSubsystem’
‘RemovePlayerMappableConfig’: is not a member of ‘UEnhancedInputLocalPlayerSubsystem’
‘FGameplayAbilitySpec::DynamicAbilityTags’: Use GetDynamicSpecSourceTags() which better represents what this variable does Please update your code to the new API before upgrading to the next release, otherwise your project will no longer compile.
‘EGameplayAbilityInstancingPolicy::NonInstanced’: Use InstancedPerActor as the default to avoid confusing corner cases Please update your code to the new API before upgrading to the next release, otherwise your project will no longer compile.
‘EGameplayAbilityInstancingPolicy::NonInstanced’: Use InstancedPerActor as the default to avoid confusing corner cases Please update your code to the new API before upgrading to the next release, otherwise your project will no longer compile.
‘FGameplayAbilitySpec::ActivationInfo’: ActivationInfo on the Spec only applies to NonInstanced abilities (which are now deprecated; instanced abilities have their own per-instance CurrentActivationInfo) Please update your code to the new API before upgrading to the next release, otherwise your project will no longer compile.
‘FGameplayAbilitySpec::ActivationInfo’: ActivationInfo on the Spec only applies to NonInstanced abilities (which are now deprecated; instanced abilities have their own per-instance CurrentActivationInfo) Please update your code to the new API before upgrading to the next release, otherwise your project will no longer compile.
‘FGameplayAbilitySpec::DynamicAbilityTags’: Use GetDynamicSpecSourceTags() which better represents what this variable does Please update your code to the new API before upgrading to the next release, otherwise your project will no longer compile.
‘FGameplayAbilitySpec::DynamicAbilityTags’: Use GetDynamicSpecSourceTags() which better represents what this variable does Please update your code to the new API before upgrading to the next release, otherwise your project will no longer compile.
‘AActor::NetUpdateFrequency’: Public access to NetUpdateFrequency has been deprecated. Use SetNetUpdateFrequency() and GetNetUpdateFrequency() instead. Please update your code to the new API before upgrading to the next release, otherwise your project will no longer compile.
‘AActor::NetCullDistanceSquared’: Public access to NetCullDistanceSquared has been deprecated. Use SetNetCullDistanceSquared() and GetNetCullDistanceSquared() instead. Please update your code to the new API before upgrading to the next release, otherwise your project will no longer compile.
‘UGameplayAbility::AbilityTags’: Use GetAssetTags(). This is being made non-mutable, private and renamed to AssetTags in the future. Use SetAssetTags to set defaults (in constructor only). Please update your code to the new API before upgrading to the next release, otherwise your project will no longer compile.
‘UGameplayAbility::AbilityTags’: Use GetAssetTags(). This is being made non-mutable, private and renamed to AssetTags in the future. Use SetAssetTags to set defaults (in constructor only). Please update your code to the new API before upgrading to the next release, otherwise your project will no longer compile.
‘FGameplayAbilitySpec::ActivationInfo’: ActivationInfo on the Spec only applies to NonInstanced abilities (which are now deprecated; instanced abilities have their own per-instance CurrentActivationInfo) Please update your code to the new API before upgrading to the next release, otherwise your project will no longer compile.
‘EGameplayAbilityInstancingPolicy::NonInstanced’: Use InstancedPerActor as the default to avoid confusing corner cases Please update your code to the new API before upgrading to the next release, otherwise your project will no longer compile.
‘AActor::NetUpdateFrequency’: Public access to NetUpdateFrequency has been deprecated. Use SetNetUpdateFrequency() and GetNetUpdateFrequency() instead. Please update your code to the new API before upgrading to the next release, otherwise your project will no longer compile.
‘AActor::NetCullDistanceSquared’: Public access to NetCullDistanceSquared has been deprecated. Use SetNetCullDistanceSquared() and GetNetCullDistanceSquared() instead. Please update your code to the new API before upgrading to the next release, otherwise your project will no longer compile.
‘AActor::NetUpdateFrequency’: Public access to NetUpdateFrequency has been deprecated. Use SetNetUpdateFrequency() and GetNetUpdateFrequency() instead. Please update your code to the new API before upgrading to the next release, otherwise your project will no longer compile.
‘AActor::NetUpdateFrequency’: Public access to NetUpdateFrequency has been deprecated. Use SetNetUpdateFrequency() and GetNetUpdateFrequency() instead. Please update your code to the new API before upgrading to the next release, otherwise your project will no longer compile.
‘AActor::NetCullDistanceSquared’: Public access to NetCullDistanceSquared has been deprecated. Use SetNetCullDistanceSquared() and GetNetCullDistanceSquared() instead. Please update your code to the new API before upgrading to the next release, otherwise your project will no longer compile.
‘AddPlayerMappedKeyInSlot’: is not a member of ‘UEnhancedInputLocalPlayerSubsystem’
‘RemoveAllPlayerMappedKeysForMapping’: is not a member of ‘UEnhancedInputLocalPlayerSubsystem’
‘RemoveAllPlayerMappedKeys’: is not a member of ‘UEnhancedInputLocalPlayerSubsystem’
‘SEARCH_PRESENCE’: SEARCH_PRESENCE (“PRESENCESEARCH”) is deprecated and will soon stop being a valid UE-defined key. Please consult upgrade notes for more details Please update your code to the new API before upgrading to the next release, otherwise your project will no longer compile.