Build errors upgrading from 5.3.1 to 5.4.3

Errors:

Severity	Code	Description	Project	File	Line	Suppression State	Details
Error	MSB3073	The command "..\..\Build\BatchFiles\Build.bat WebTests Win64 Development -WaitMutex -FromMsBuild -architecture=x64 -Mode=Test" exited with code 6.	WebTests	F:\Microsoft Visual Studio\2022\Community\MSBuild\Microsoft\VC\v170\Microsoft.MakeFile.Targets	44		
Error	MSB3073	The command "..\..\Build\BatchFiles\Build.bat AutoRTFMTests Win64 Development -Project="F:\UnrealEngine\Engine\Programs\AutoRTFMTests\AutoRTFMTests.uproject" -WaitMutex -FromMsBuild -architecture=x64" exited with code 6.	AutoRTFMTests	F:\Microsoft Visual Studio\2022\Community\MSBuild\Microsoft\VC\v170\Microsoft.MakeFile.Targets	44		
Error	C1001	Internal compiler error.	WebTests	F:\UnrealEngine\Engine\Source\Runtime\Core\Public\Templates\Function.h	404		
Error (active)	E1696	cannot open source file "ProjectDescriptor.h"	CmdLink	F:\UnrealEngine\Engine\Source\Runtime\Launch\Private\LaunchEngineLoop.cpp	67		
Error (active)	E1696	cannot open source file "Interfaces/IProjectManager.h"	CmdLink	F:\UnrealEngine\Engine\Source\Runtime\Launch\Private\LaunchEngineLoop.cpp	68		
Error (active)	E1696	cannot open source file "Interfaces/IPluginManager.h"	CmdLink	F:\UnrealEngine\Engine\Source\Runtime\Launch\Private\LaunchEngineLoop.cpp	66		

Warnings:

Severity	Code	Description	Project	File	Line	Suppression State	Details
Warning (active)	MSB3277	Found conflicts between different versions of "Microsoft.CodeAnalysis" that could not be resolved.
There was a conflict between "Microsoft.CodeAnalysis, Version=3.11.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" and "Microsoft.CodeAnalysis, Version=4.2.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35".
    "Microsoft.CodeAnalysis, Version=3.11.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" was chosen because it was primary and "Microsoft.CodeAnalysis, Version=4.2.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" was not.
    References which depend on "Microsoft.CodeAnalysis, Version=3.11.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" [C:\Users\***\.nuget\packages\microsoft.codeanalysis.common\3.11.0\lib\netcoreapp3.1\Microsoft.CodeAnalysis.dll].
        C:\Users\***\.nuget\packages\microsoft.codeanalysis.common\3.11.0\lib\netcoreapp3.1\Microsoft.CodeAnalysis.dll
          Project file item includes which caused reference "C:\Users\***\.nuget\packages\microsoft.codeanalysis.common\3.11.0\lib\netcoreapp3.1\Microsoft.CodeAnalysis.dll".
            C:\Users\***\.nuget\packages\microsoft.codeanalysis.common\3.11.0\lib\netcoreapp3.1\Microsoft.CodeAnalysis.dll
    References which depend on or have been unified to "Microsoft.CodeAnalysis, Version=4.2.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" [].
        F:\UnrealEngine\Engine\Binaries\DotNET\AutomationTool\AutomationUtils\UnrealBuildTool.dll
          Project file item includes which caused reference "F:\UnrealEngine\Engine\Binaries\DotNET\AutomationTool\AutomationUtils\UnrealBuildTool.dll".
            F:\UnrealEngine\Engine\Binaries\DotNET\AutomationTool\AutomationUtils\AutomationUtils.Automation.dll
            F:\UnrealEngine\Engine\Binaries\DotNET\AutomationTool\AutomationScripts\Platforms\Android\Android.Automation.dll	UnrealAndroidFileTool	F:\Microsoft Visual Studio\2022\Community\MSBuild\Current\Bin\amd64\Microsoft.Common.CurrentVersion.targets	2401		
Warning (active)	MSB3277	Found conflicts between different versions of "Microsoft.CodeAnalysis.CSharp" that could not be resolved.
There was a conflict between "Microsoft.CodeAnalysis.CSharp, Version=3.11.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" and "Microsoft.CodeAnalysis.CSharp, Version=4.2.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35".
    "Microsoft.CodeAnalysis.CSharp, Version=3.11.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" was chosen because it was primary and "Microsoft.CodeAnalysis.CSharp, Version=4.2.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" was not.
    References which depend on "Microsoft.CodeAnalysis.CSharp, Version=3.11.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" [C:\Users\***\.nuget\packages\microsoft.codeanalysis.csharp\3.11.0\lib\netcoreapp3.1\Microsoft.CodeAnalysis.CSharp.dll].
        C:\Users\***.nuget\packages\microsoft.codeanalysis.csharp\3.11.0\lib\netcoreapp3.1\Microsoft.CodeAnalysis.CSharp.dll
          Project file item includes which caused reference "C:\Users\***\.nuget\packages\microsoft.codeanalysis.csharp\3.11.0\lib\netcoreapp3.1\Microsoft.CodeAnalysis.CSharp.dll".
            C:\Users\***\.nuget\packages\microsoft.codeanalysis.csharp\3.11.0\lib\netcoreapp3.1\Microsoft.CodeAnalysis.CSharp.dll
    References which depend on or have been unified to "Microsoft.CodeAnalysis.CSharp, Version=4.2.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" [].
        F:\UnrealEngine\Engine\Binaries\DotNET\AutomationTool\AutomationUtils\UnrealBuildTool.dll
          Project file item includes which caused reference "F:\UnrealEngine\Engine\Binaries\DotNET\AutomationTool\AutomationUtils\UnrealBuildTool.dll".
            F:\UnrealEngine\Engine\Binaries\DotNET\AutomationTool\AutomationUtils\AutomationUtils.Automation.dll
            F:\UnrealEngine\Engine\Binaries\DotNET\AutomationTool\AutomationScripts\Platforms\Android\Android.Automation.dll	UnrealAndroidFileTool	F:\Microsoft Visual Studio\2022\Community\MSBuild\Current\Bin\amd64\Microsoft.Common.CurrentVersion.targets	2401		

:frowning: build took 6-ish hours