Numerous failures while building `roslyn` tests in VMR

[NikolaMilosavljevic]

Here are the errors encountered when we tried to enable building tests in VMR:

C:\git\dotnet\src\roslyn\src\Compilers\Core\CodeAnalysisTest\Microsoft.CodeAnalysis.UnitTests.csproj : error NU1109: Detected package downgrade: Microsoft.TestPlatform.ObjectModel from 17.12.0 to centrally defined 17.5.0. Update the centrally managed package version to a higher version.  [C:\git\dotnet\src\roslyn\Roslyn.sln]
C:\git\dotnet\src\roslyn\src\Compilers\Core\CodeAnalysisTest\Microsoft.CodeAnalysis.UnitTests.csproj : error NU1109:  Microsoft.CodeAnalysis.UnitTests -> Microsoft.NET.Test.Sdk 17.12.0 -> Microsoft.TestPlatform.TestHost 17.12.0 -> Microsoft.TestPlatform.ObjectModel (>= 17.12.0)  [C:\git\dotnet\src\roslyn\Roslyn.sln]
C:\git\dotnet\src\roslyn\src\Compilers\Core\CodeAnalysisTest\Microsoft.CodeAnalysis.UnitTests.csproj : error NU1109:  Microsoft.CodeAnalysis.UnitTests -> Microsoft.TestPlatform.ObjectModel (>= 17.5.0) [C:\git\dotnet\src\roslyn\Roslyn.sln]
C:\git\dotnet\src\roslyn\src\Workspaces\VisualBasicTest\Microsoft.CodeAnalysis.VisualBasic.Workspaces.UnitTests.vbproj : error NU1109: Detected package downgrade: Microsoft.TestPlatform.ObjectModel from 17.12.0 to centrally defined 17.5.0. Update the centrally managed package version to a higher version.  [C:\git\dotnet\src\roslyn\Roslyn.sln]
C:\git\dotnet\src\roslyn\src\Workspaces\VisualBasicTest\Microsoft.CodeAnalysis.VisualBasic.Workspaces.UnitTests.vbproj : error NU1109:  Microsoft.CodeAnalysis.VisualBasic.Workspaces.UnitTests -> Microsoft.NET.Test.Sdk 17.12.0 -> Microsoft.TestPlatform.TestHost 17.12.0 -> Microsoft.TestPlatform.ObjectModel (>= 17.12.0)  [C:\git\dotnet\src\roslyn\Roslyn.sln]
C:\git\dotnet\src\roslyn\src\Workspaces\VisualBasicTest\Microsoft.CodeAnalysis.VisualBasic.Workspaces.UnitTests.vbproj : error NU1109:  Microsoft.CodeAnalysis.VisualBasic.Workspaces.UnitTests -> Microsoft.TestPlatform.ObjectModel (>= 17.5.0) [C:\git\dotnet\src\roslyn\Roslyn.sln]
C:\git\dotnet\src\roslyn\src\Tools\SemanticSearch\Tests\SemanticSearch.BuildTask.UnitTests.csproj : error NU1109: Detected package downgrade: Microsoft.TestPlatform.ObjectModel from 17.12.0 to centrally defined 17.5.0. Update the centrally managed package version to a higher version.  [C:\git\dotnet\src\roslyn\Roslyn.sln]
C:\git\dotnet\src\roslyn\src\Tools\SemanticSearch\Tests\SemanticSearch.BuildTask.UnitTests.csproj : error NU1109:  SemanticSearch.BuildTask.UnitTests -> Microsoft.NET.Test.Sdk 17.12.0 -> Microsoft.TestPlatform.TestHost 17.12.0 -> Microsoft.TestPlatform.ObjectModel (>= 17.12.0)  [C:\git\dotnet\src\roslyn\Roslyn.sln]
C:\git\dotnet\src\roslyn\src\Tools\SemanticSearch\Tests\SemanticSearch.BuildTask.UnitTests.csproj : error NU1109:  SemanticSearch.BuildTask.UnitTests -> Microsoft.TestPlatform.ObjectModel (>= 17.5.0) [C:\git\dotnet\src\roslyn\Roslyn.sln]
C:\git\dotnet\src\roslyn\src\Tools\ExternalAccess\RazorCompilerTest\Microsoft.CodeAnalysis.ExternalAccess.RazorCompiler.UnitTests.csproj : error NU1109: Detected package downgrade: Microsoft.TestPlatform.ObjectModel from 17.12.0 to centrally defined 17.5.0. Update the centrally managed package version to a higher version.  [C:\git\dotnet\src\roslyn\Roslyn.sln]
C:\git\dotnet\src\roslyn\src\Tools\ExternalAccess\RazorCompilerTest\Microsoft.CodeAnalysis.ExternalAccess.RazorCompiler.UnitTests.csproj : error NU1109:  Microsoft.CodeAnalysis.ExternalAccess.RazorCompiler.UnitTests -> Microsoft.NET.Test.Sdk 17.12.0 -> Microsoft.TestPlatform.TestHost 17.12.0 -> Microsoft.TestPlatform.ObjectModel (>= 17.12.0)  [C:\git\dotnet\src\roslyn\Roslyn.sln]
C:\git\dotnet\src\roslyn\src\Tools\ExternalAccess\RazorCompilerTest\Microsoft.CodeAnalysis.ExternalAccess.RazorCompiler.UnitTests.csproj : error NU1109:  Microsoft.CodeAnalysis.ExternalAccess.RazorCompiler.UnitTests -> Microsoft.TestPlatform.ObjectModel (>= 17.5.0) [C:\git\dotnet\src\roslyn\Roslyn.sln]
C:\git\dotnet\src\roslyn\src\Features\CSharpTest\Microsoft.CodeAnalysis.CSharp.Features.UnitTests.csproj : error NU1109: Detected package downgrade: Microsoft.TestPlatform.ObjectModel from 17.12.0 to centrally defined 17.5.0. Update the centrally managed package version to a higher version.  [C:\git\dotnet\src\roslyn\Roslyn.sln]
C:\git\dotnet\src\roslyn\src\Features\CSharpTest\Microsoft.CodeAnalysis.CSharp.Features.UnitTests.csproj : error NU1109:  Microsoft.CodeAnalysis.CSharp.Features.UnitTests -> Microsoft.NET.Test.Sdk 17.12.0 -> Microsoft.TestPlatform.TestHost 17.12.0 -> Microsoft.TestPlatform.ObjectModel (>= 17.12.0)  [C:\git\dotnet\src\roslyn\Roslyn.sln]
C:\git\dotnet\src\roslyn\src\Features\CSharpTest\Microsoft.CodeAnalysis.CSharp.Features.UnitTests.csproj : error NU1109:  Microsoft.CodeAnalysis.CSharp.Features.UnitTests -> Microsoft.TestPlatform.ObjectModel (>= 17.5.0) [C:\git\dotnet\src\roslyn\Roslyn.sln]
C:\git\dotnet\src\roslyn\src\Compilers\VisualBasic\Test\Syntax\Microsoft.CodeAnalysis.VisualBasic.Syntax.UnitTests.vbproj : error NU1109: Detected package downgrade: Microsoft.TestPlatform.ObjectModel from 17.12.0 to centrally defined 17.5.0. Update the centrally managed package version to a higher version.  [C:\git\dotnet\src\roslyn\Roslyn.sln]
C:\git\dotnet\src\roslyn\src\Compilers\VisualBasic\Test\Syntax\Microsoft.CodeAnalysis.VisualBasic.Syntax.UnitTests.vbproj : error NU1109:  Microsoft.CodeAnalysis.VisualBasic.Syntax.UnitTests -> Microsoft.NET.Test.Sdk 17.12.0 -> Microsoft.TestPlatform.TestHost 17.12.0 -> Microsoft.TestPlatform.ObjectModel (>= 17.12.0)  [C:\git\dotnet\src\roslyn\Roslyn.sln]
C:\git\dotnet\src\roslyn\src\Compilers\VisualBasic\Test\Syntax\Microsoft.CodeAnalysis.VisualBasic.Syntax.UnitTests.vbproj : error NU1109:  Microsoft.CodeAnalysis.VisualBasic.Syntax.UnitTests -> Microsoft.TestPlatform.ObjectModel (>= 17.5.0) [C:\git\dotnet\src\roslyn\Roslyn.sln]
C:\git\dotnet\src\roslyn\src\Workspaces\CoreTest\Microsoft.CodeAnalysis.Workspaces.UnitTests.csproj : error NU1109: Detected package downgrade: Microsoft.TestPlatform.ObjectModel from 17.12.0 to centrally defined 17.5.0. Update the centrally managed package version to a higher version.  [C:\git\dotnet\src\roslyn\Roslyn.sln]
C:\git\dotnet\src\roslyn\src\Workspaces\CoreTest\Microsoft.CodeAnalysis.Workspaces.UnitTests.csproj : error NU1109:  Microsoft.CodeAnalysis.Workspaces.UnitTests -> Microsoft.NET.Test.Sdk 17.12.0 -> Microsoft.TestPlatform.TestHost 17.12.0 -> Microsoft.TestPlatform.ObjectModel (>= 17.12.0)  [C:\git\dotnet\src\roslyn\Roslyn.sln]
C:\git\dotnet\src\roslyn\src\Workspaces\CoreTest\Microsoft.CodeAnalysis.Workspaces.UnitTests.csproj : error NU1109:  Microsoft.CodeAnalysis.Workspaces.UnitTests -> Microsoft.TestPlatform.ObjectModel (>= 17.5.0) [C:\git\dotnet\src\roslyn\Roslyn.sln]
C:\git\dotnet\src\roslyn\src\Interactive\HostTest\InteractiveHost.UnitTests.csproj : error NU1109: Detected package downgrade: Microsoft.TestPlatform.ObjectModel from 17.12.0 to centrally defined 17.5.0. Update the centrally managed package version to a higher version.  [C:\git\dotnet\src\roslyn\Roslyn.sln]
C:\git\dotnet\src\roslyn\src\Interactive\HostTest\InteractiveHost.UnitTests.csproj : error NU1109:  InteractiveHost.UnitTests -> Microsoft.NET.Test.Sdk 17.12.0 -> Microsoft.TestPlatform.TestHost 17.12.0 -> Microsoft.TestPlatform.ObjectModel (>= 17.12.0)  [C:\git\dotnet\src\roslyn\Roslyn.sln]
C:\git\dotnet\src\roslyn\src\Interactive\HostTest\InteractiveHost.UnitTests.csproj : error NU1109:  InteractiveHost.UnitTests -> Microsoft.TestPlatform.ObjectModel (>= 17.5.0) [C:\git\dotnet\src\roslyn\Roslyn.sln]
C:\git\dotnet\src\roslyn\src\Scripting\CoreTest\Microsoft.CodeAnalysis.Scripting.UnitTests.csproj : error NU1109: Detected package downgrade: Microsoft.TestPlatform.ObjectModel from 17.12.0 to centrally defined 17.5.0. Update the centrally managed package version to a higher version.  [C:\git\dotnet\src\roslyn\Roslyn.sln]
C:\git\dotnet\src\roslyn\src\Scripting\CoreTest\Microsoft.CodeAnalysis.Scripting.UnitTests.csproj : error NU1109:  Microsoft.CodeAnalysis.Scripting.UnitTests -> Microsoft.NET.Test.Sdk 17.12.0 -> Microsoft.TestPlatform.TestHost 17.12.0 -> Microsoft.TestPlatform.ObjectModel (>= 17.12.0)  [C:\git\dotnet\src\roslyn\Roslyn.sln]
C:\git\dotnet\src\roslyn\src\Scripting\CoreTest\Microsoft.CodeAnalysis.Scripting.UnitTests.csproj : error NU1109:  Microsoft.CodeAnalysis.Scripting.UnitTests -> Microsoft.TestPlatform.ObjectModel (>= 17.5.0) [C:\git\dotnet\src\roslyn\Roslyn.sln]
C:\git\dotnet\src\roslyn\src\Scripting\CSharpTest\Microsoft.CodeAnalysis.CSharp.Scripting.UnitTests.csproj : error NU1109: Detected package downgrade: Microsoft.TestPlatform.ObjectModel from 17.12.0 to centrally defined 17.5.0. Update the centrally managed package version to a higher version.  [C:\git\dotnet\src\roslyn\Roslyn.sln]
C:\git\dotnet\src\roslyn\src\Scripting\CSharpTest\Microsoft.CodeAnalysis.CSharp.Scripting.UnitTests.csproj : error NU1109:  Microsoft.CodeAnalysis.CSharp.Scripting.UnitTests -> Microsoft.NET.Test.Sdk 17.12.0 -> Microsoft.TestPlatform.TestHost 17.12.0 -> Microsoft.TestPlatform.ObjectModel (>= 17.12.0)  [C:\git\dotnet\src\roslyn\Roslyn.sln]
C:\git\dotnet\src\roslyn\src\Scripting\CSharpTest\Microsoft.CodeAnalysis.CSharp.Scripting.UnitTests.csproj : error NU1109:  Microsoft.CodeAnalysis.CSharp.Scripting.UnitTests -> Microsoft.TestPlatform.ObjectModel (>= 17.5.0) [C:\git\dotnet\src\roslyn\Roslyn.sln]
C:\git\dotnet\src\roslyn\src\Compilers\VisualBasic\Test\IOperation\Roslyn.Compilers.VisualBasic.IOperation.UnitTests.vbproj : error NU1109: Detected package downgrade: Microsoft.TestPlatform.ObjectModel from 17.12.0 to centrally defined 17.5.0. Update the centrally managed package version to a higher version.  [C:\git\dotnet\src\roslyn\Roslyn.sln]
C:\git\dotnet\src\roslyn\src\Compilers\VisualBasic\Test\IOperation\Roslyn.Compilers.VisualBasic.IOperation.UnitTests.vbproj : error NU1109:  Roslyn.Compilers.VisualBasic.IOperation.UnitTests -> Microsoft.NET.Test.Sdk 17.12.0 -> Microsoft.TestPlatform.TestHost 17.12.0 -> Microsoft.TestPlatform.ObjectModel (>= 17.12.0)  [C:\git\dotnet\src\roslyn\Roslyn.sln]
C:\git\dotnet\src\roslyn\src\Compilers\VisualBasic\Test\IOperation\Roslyn.Compilers.VisualBasic.IOperation.UnitTests.vbproj : error NU1109:  Roslyn.Compilers.VisualBasic.IOperation.UnitTests -> Microsoft.TestPlatform.ObjectModel (>= 17.5.0) [C:\git\dotnet\src\roslyn\Roslyn.sln]
C:\git\dotnet\src\roslyn\src\Workspaces\Remote\ServiceHubTest\Microsoft.CodeAnalysis.Remote.ServiceHub.UnitTests.csproj : error NU1109: Detected package downgrade: Microsoft.TestPlatform.ObjectModel from 17.12.0 to centrally defined 17.5.0. Update the centrally managed package version to a higher version.  [C:\git\dotnet\src\roslyn\Roslyn.sln]
C:\git\dotnet\src\roslyn\src\Workspaces\Remote\ServiceHubTest\Microsoft.CodeAnalysis.Remote.ServiceHub.UnitTests.csproj : error NU1109:  Microsoft.CodeAnalysis.Remote.ServiceHub.UnitTests -> Microsoft.NET.Test.Sdk 17.12.0 -> Microsoft.TestPlatform.TestHost 17.12.0 -> Microsoft.TestPlatform.ObjectModel (>= 17.12.0)  [C:\git\dotnet\src\roslyn\Roslyn.sln]
C:\git\dotnet\src\roslyn\src\Workspaces\Remote\ServiceHubTest\Microsoft.CodeAnalysis.Remote.ServiceHub.UnitTests.csproj : error NU1109:  Microsoft.CodeAnalysis.Remote.ServiceHub.UnitTests -> Microsoft.TestPlatform.ObjectModel (>= 17.5.0) [C:\git\dotnet\src\roslyn\Roslyn.sln]
C:\git\dotnet\src\roslyn\src\Workspaces\MSBuildTest\Microsoft.CodeAnalysis.Workspaces.MSBuild.UnitTests.csproj : error NU1109: Detected package downgrade: Microsoft.TestPlatform.ObjectModel from 17.12.0 to centrally defined 17.5.0. Update the centrally managed package version to a higher version.  [C:\git\dotnet\src\roslyn\Roslyn.sln]
C:\git\dotnet\src\roslyn\src\Workspaces\MSBuildTest\Microsoft.CodeAnalysis.Workspaces.MSBuild.UnitTests.csproj : error NU1109:  Microsoft.CodeAnalysis.Workspaces.MSBuild.UnitTests -> Microsoft.NET.Test.Sdk 17.12.0 -> Microsoft.TestPlatform.TestHost 17.12.0 -> Microsoft.TestPlatform.ObjectModel (>= 17.12.0)  [C:\git\dotnet\src\roslyn\Roslyn.sln]
C:\git\dotnet\src\roslyn\src\Workspaces\MSBuildTest\Microsoft.CodeAnalysis.Workspaces.MSBuild.UnitTests.csproj : error NU1109:  Microsoft.CodeAnalysis.Workspaces.MSBuild.UnitTests -> Microsoft.TestPlatform.ObjectModel (>= 17.5.0) [C:\git\dotnet\src\roslyn\Roslyn.sln]
C:\git\dotnet\src\roslyn\src\Workspaces\CSharpTest\Microsoft.CodeAnalysis.CSharp.Workspaces.UnitTests.csproj : error NU1109: Detected package downgrade: Microsoft.TestPlatform.ObjectModel from 17.12.0 to centrally defined 17.5.0. Update the centrally managed package version to a higher version.  [C:\git\dotnet\src\roslyn\Roslyn.sln]
C:\git\dotnet\src\roslyn\src\Workspaces\CSharpTest\Microsoft.CodeAnalysis.CSharp.Workspaces.UnitTests.csproj : error NU1109:  Microsoft.CodeAnalysis.CSharp.Workspaces.UnitTests -> Microsoft.NET.Test.Sdk 17.12.0 -> Microsoft.TestPlatform.TestHost 17.12.0 -> Microsoft.TestPlatform.ObjectModel (>= 17.12.0)  [C:\git\dotnet\src\roslyn\Roslyn.sln]
C:\git\dotnet\src\roslyn\src\Workspaces\CSharpTest\Microsoft.CodeAnalysis.CSharp.Workspaces.UnitTests.csproj : error NU1109:  Microsoft.CodeAnalysis.CSharp.Workspaces.UnitTests -> Microsoft.TestPlatform.ObjectModel (>= 17.5.0) [C:\git\dotnet\src\roslyn\Roslyn.sln]
C:\git\dotnet\src\roslyn\src\Features\VisualBasicTest\Microsoft.CodeAnalysis.VisualBasic.Features.UnitTests.vbproj : error NU1109: Detected package downgrade: Microsoft.TestPlatform.ObjectModel from 17.12.0 to centrally defined 17.5.0. Update the centrally managed package version to a higher version.  [C:\git\dotnet\src\roslyn\Roslyn.sln]
C:\git\dotnet\src\roslyn\src\Features\VisualBasicTest\Microsoft.CodeAnalysis.VisualBasic.Features.UnitTests.vbproj : error NU1109:  Microsoft.CodeAnalysis.VisualBasic.Features.UnitTests -> Microsoft.NET.Test.Sdk 17.12.0 -> Microsoft.TestPlatform.TestHost 17.12.0 -> Microsoft.TestPlatform.ObjectModel (>= 17.12.0)  [C:\git\dotnet\src\roslyn\Roslyn.sln]
C:\git\dotnet\src\roslyn\src\Features\VisualBasicTest\Microsoft.CodeAnalysis.VisualBasic.Features.UnitTests.vbproj : error NU1109:  Microsoft.CodeAnalysis.VisualBasic.Features.UnitTests -> Microsoft.TestPlatform.ObjectModel (>= 17.5.0) [C:\git\dotnet\src\roslyn\Roslyn.sln]
C:\git\dotnet\src\roslyn\src\Compilers\VisualBasic\Test\Emit\Microsoft.CodeAnalysis.VisualBasic.Emit.UnitTests.vbproj : error NU1109: Detected package downgrade: Microsoft.TestPlatform.ObjectModel from 17.12.0 to centrally defined 17.5.0. Update the centrally managed package version to a higher version.  [C:\git\dotnet\src\roslyn\Roslyn.sln]
C:\git\dotnet\src\roslyn\src\Compilers\VisualBasic\Test\Emit\Microsoft.CodeAnalysis.VisualBasic.Emit.UnitTests.vbproj : error NU1109:  Microsoft.CodeAnalysis.VisualBasic.Emit.UnitTests -> Microsoft.NET.Test.Sdk 17.12.0 -> Microsoft.TestPlatform.TestHost 17.12.0 -> Microsoft.TestPlatform.ObjectModel (>= 17.12.0)  [C:\git\dotnet\src\roslyn\Roslyn.sln]
C:\git\dotnet\src\roslyn\src\Compilers\VisualBasic\Test\Emit\Microsoft.CodeAnalysis.VisualBasic.Emit.UnitTests.vbproj : error NU1109:  Microsoft.CodeAnalysis.VisualBasic.Emit.UnitTests -> Microsoft.TestPlatform.ObjectModel (>= 17.5.0) [C:\git\dotnet\src\roslyn\Roslyn.sln]
C:\git\dotnet\src\roslyn\src\Compilers\VisualBasic\Test\Symbol\Microsoft.CodeAnalysis.VisualBasic.Symbol.UnitTests.vbproj : error NU1109: Detected package downgrade: Microsoft.TestPlatform.ObjectModel from 17.12.0 to centrally defined 17.5.0. Update the centrally managed package version to a higher version.  [C:\git\dotnet\src\roslyn\Roslyn.sln]
C:\git\dotnet\src\roslyn\src\Compilers\VisualBasic\Test\Symbol\Microsoft.CodeAnalysis.VisualBasic.Symbol.UnitTests.vbproj : error NU1109:  Microsoft.CodeAnalysis.VisualBasic.Symbol.UnitTests -> Microsoft.NET.Test.Sdk 17.12.0 -> Microsoft.TestPlatform.TestHost 17.12.0 -> Microsoft.TestPlatform.ObjectModel (>= 17.12.0)  [C:\git\dotnet\src\roslyn\Roslyn.sln]
C:\git\dotnet\src\roslyn\src\Compilers\VisualBasic\Test\Symbol\Microsoft.CodeAnalysis.VisualBasic.Symbol.UnitTests.vbproj : error NU1109:  Microsoft.CodeAnalysis.VisualBasic.Symbol.UnitTests -> Microsoft.TestPlatform.ObjectModel (>= 17.5.0) [C:\git\dotnet\src\roslyn\Roslyn.sln]
C:\git\dotnet\src\roslyn\src\Compilers\VisualBasic\Test\Semantic\Microsoft.CodeAnalysis.VisualBasic.Semantic.UnitTests.vbproj : error NU1109: Detected package downgrade: Microsoft.TestPlatform.ObjectModel from 17.12.0 to centrally defined 17.5.0. Update the centrally managed package version to a higher version.  [C:\git\dotnet\src\roslyn\Roslyn.sln]
C:\git\dotnet\src\roslyn\src\Compilers\VisualBasic\Test\Semantic\Microsoft.CodeAnalysis.VisualBasic.Semantic.UnitTests.vbproj : error NU1109:  Microsoft.CodeAnalysis.VisualBasic.Semantic.UnitTests -> Microsoft.NET.Test.Sdk 17.12.0 -> Microsoft.TestPlatform.TestHost 17.12.0 -> Microsoft.TestPlatform.ObjectModel (>= 17.12.0)  [C:\git\dotnet\src\roslyn\Roslyn.sln]
C:\git\dotnet\src\roslyn\src\Compilers\VisualBasic\Test\Semantic\Microsoft.CodeAnalysis.VisualBasic.Semantic.UnitTests.vbproj : error NU1109:  Microsoft.CodeAnalysis.VisualBasic.Semantic.UnitTests -> Microsoft.TestPlatform.ObjectModel (>= 17.5.0) [C:\git\dotnet\src\roslyn\Roslyn.sln]
C:\git\dotnet\src\roslyn\src\Features\Test\Microsoft.CodeAnalysis.Features.UnitTests.csproj : error NU1109: Detected package downgrade: Microsoft.TestPlatform.ObjectModel from 17.12.0 to centrally defined 17.5.0. Update the centrally managed package version to a higher version.  [C:\git\dotnet\src\roslyn\Roslyn.sln]
C:\git\dotnet\src\roslyn\src\Features\Test\Microsoft.CodeAnalysis.Features.UnitTests.csproj : error NU1109:  Microsoft.CodeAnalysis.Features.UnitTests -> Microsoft.NET.Test.Sdk 17.12.0 -> Microsoft.TestPlatform.TestHost 17.12.0 -> Microsoft.TestPlatform.ObjectModel (>= 17.12.0)  [C:\git\dotnet\src\roslyn\Roslyn.sln]
C:\git\dotnet\src\roslyn\src\Features\Test\Microsoft.CodeAnalysis.Features.UnitTests.csproj : error NU1109:  Microsoft.CodeAnalysis.Features.UnitTests -> Microsoft.TestPlatform.ObjectModel (>= 17.5.0) [C:\git\dotnet\src\roslyn\Roslyn.sln]
C:\git\dotnet\src\roslyn\src\LanguageServer\Microsoft.CodeAnalysis.LanguageServer.UnitTests\Microsoft.CodeAnalysis.LanguageServer.UnitTests.csproj : error NU1109: Detected package downgrade: Microsoft.TestPlatform.ObjectModel from 17.12.0 to centrally defined 17.5.0. Update the centrally managed package version to a higher version.  [C:\git\dotnet\src\roslyn\Roslyn.sln]
C:\git\dotnet\src\roslyn\src\LanguageServer\Microsoft.CodeAnalysis.LanguageServer.UnitTests\Microsoft.CodeAnalysis.LanguageServer.UnitTests.csproj : error NU1109:  Microsoft.CodeAnalysis.LanguageServer.UnitTests -> Microsoft.NET.Test.Sdk 17.12.0 -> Microsoft.TestPlatform.TestHost 17.12.0 -> Microsoft.TestPlatform.ObjectModel (>= 17.12.0)  [C:\git\dotnet\src\roslyn\Roslyn.sln]
C:\git\dotnet\src\roslyn\src\LanguageServer\Microsoft.CodeAnalysis.LanguageServer.UnitTests\Microsoft.CodeAnalysis.LanguageServer.UnitTests.csproj : error NU1109:  Microsoft.CodeAnalysis.LanguageServer.UnitTests -> Microsoft.TestPlatform.ObjectModel (>= 17.5.0) [C:\git\dotnet\src\roslyn\Roslyn.sln]
C:\git\dotnet\src\roslyn\src\EditorFeatures\CSharpTest2\Microsoft.CodeAnalysis.CSharp.EditorFeatures2.UnitTests.csproj : error NU1109: Detected package downgrade: Microsoft.TestPlatform.ObjectModel from 17.12.0 to centrally defined 17.5.0. Update the centrally managed package version to a higher version.  [C:\git\dotnet\src\roslyn\Roslyn.sln]
C:\git\dotnet\src\roslyn\src\EditorFeatures\CSharpTest2\Microsoft.CodeAnalysis.CSharp.EditorFeatures2.UnitTests.csproj : error NU1109:  Microsoft.CodeAnalysis.CSharp.EditorFeatures2.UnitTests -> Microsoft.NET.Test.Sdk 17.12.0 -> Microsoft.TestPlatform.TestHost 17.12.0 -> Microsoft.TestPlatform.ObjectModel (>= 17.12.0)  [C:\git\dotnet\src\roslyn\Roslyn.sln]
C:\git\dotnet\src\roslyn\src\EditorFeatures\CSharpTest2\Microsoft.CodeAnalysis.CSharp.EditorFeatures2.UnitTests.csproj : error NU1109:  Microsoft.CodeAnalysis.CSharp.EditorFeatures2.UnitTests -> Microsoft.TestPlatform.ObjectModel (>= 17.5.0) [C:\git\dotnet\src\roslyn\Roslyn.sln]
C:\git\dotnet\src\roslyn\src\Compilers\Server\VBCSCompilerTests\VBCSCompiler.UnitTests.csproj : error NU1109: Detected package downgrade: Microsoft.TestPlatform.ObjectModel from 17.12.0 to centrally defined 17.5.0. Update the centrally managed package version to a higher version.  [C:\git\dotnet\src\roslyn\Roslyn.sln]
C:\git\dotnet\src\roslyn\src\Compilers\Server\VBCSCompilerTests\VBCSCompiler.UnitTests.csproj : error NU1109:  VBCSCompiler.UnitTests -> Microsoft.NET.Test.Sdk 17.12.0 -> Microsoft.TestPlatform.TestHost 17.12.0 -> Microsoft.TestPlatform.ObjectModel (>= 17.12.0)  [C:\git\dotnet\src\roslyn\Roslyn.sln]
C:\git\dotnet\src\roslyn\src\Compilers\Server\VBCSCompilerTests\VBCSCompiler.UnitTests.csproj : error NU1109:  VBCSCompiler.UnitTests -> Microsoft.TestPlatform.ObjectModel (>= 17.5.0) [C:\git\dotnet\src\roslyn\Roslyn.sln]
C:\git\dotnet\src\roslyn\src\Compilers\CSharp\Test\Syntax\Microsoft.CodeAnalysis.CSharp.Syntax.UnitTests.csproj : error NU1109: Detected package downgrade: Microsoft.TestPlatform.ObjectModel from 17.12.0 to centrally defined 17.5.0. Update the centrally managed package version to a higher version.  [C:\git\dotnet\src\roslyn\Roslyn.sln]
C:\git\dotnet\src\roslyn\src\Compilers\CSharp\Test\Syntax\Microsoft.CodeAnalysis.CSharp.Syntax.UnitTests.csproj : error NU1109:  Microsoft.CodeAnalysis.CSharp.Syntax.UnitTests -> Microsoft.NET.Test.Sdk 17.12.0 -> Microsoft.TestPlatform.TestHost 17.12.0 -> Microsoft.TestPlatform.ObjectModel (>= 17.12.0)  [C:\git\dotnet\src\roslyn\Roslyn.sln]
C:\git\dotnet\src\roslyn\src\Compilers\CSharp\Test\Syntax\Microsoft.CodeAnalysis.CSharp.Syntax.UnitTests.csproj : error NU1109:  Microsoft.CodeAnalysis.CSharp.Syntax.UnitTests -> Microsoft.TestPlatform.ObjectModel (>= 17.5.0) [C:\git\dotnet\src\roslyn\Roslyn.sln]
C:\git\dotnet\src\roslyn\src\Compilers\CSharp\Test\Symbol\Microsoft.CodeAnalysis.CSharp.Symbol.UnitTests.csproj : error NU1109: Detected package downgrade: Microsoft.TestPlatform.ObjectModel from 17.12.0 to centrally defined 17.5.0. Update the centrally managed package version to a higher version.  [C:\git\dotnet\src\roslyn\Roslyn.sln]
C:\git\dotnet\src\roslyn\src\Compilers\CSharp\Test\Symbol\Microsoft.CodeAnalysis.CSharp.Symbol.UnitTests.csproj : error NU1109:  Microsoft.CodeAnalysis.CSharp.Symbol.UnitTests -> Microsoft.NET.Test.Sdk 17.12.0 -> Microsoft.TestPlatform.TestHost 17.12.0 -> Microsoft.TestPlatform.ObjectModel (>= 17.12.0)  [C:\git\dotnet\src\roslyn\Roslyn.sln]
C:\git\dotnet\src\roslyn\src\Compilers\CSharp\Test\Symbol\Microsoft.CodeAnalysis.CSharp.Symbol.UnitTests.csproj : error NU1109:  Microsoft.CodeAnalysis.CSharp.Symbol.UnitTests -> Microsoft.TestPlatform.ObjectModel (>= 17.5.0) [C:\git\dotnet\src\roslyn\Roslyn.sln]
C:\git\dotnet\src\roslyn\src\Compilers\CSharp\Test\IOperation\Microsoft.CodeAnalysis.CSharp.IOperation.UnitTests.csproj : error NU1109: Detected package downgrade: Microsoft.TestPlatform.ObjectModel from 17.12.0 to centrally defined 17.5.0. Update the centrally managed package version to a higher version.  [C:\git\dotnet\src\roslyn\Roslyn.sln]
C:\git\dotnet\src\roslyn\src\Compilers\CSharp\Test\IOperation\Microsoft.CodeAnalysis.CSharp.IOperation.UnitTests.csproj : error NU1109:  Microsoft.CodeAnalysis.CSharp.IOperation.UnitTests -> Microsoft.NET.Test.Sdk 17.12.0 -> Microsoft.TestPlatform.TestHost 17.12.0 -> Microsoft.TestPlatform.ObjectModel (>= 17.12.0)  [C:\git\dotnet\src\roslyn\Roslyn.sln]
C:\git\dotnet\src\roslyn\src\Compilers\CSharp\Test\IOperation\Microsoft.CodeAnalysis.CSharp.IOperation.UnitTests.csproj : error NU1109:  Microsoft.CodeAnalysis.CSharp.IOperation.UnitTests -> Microsoft.TestPlatform.ObjectModel (>= 17.5.0) [C:\git\dotnet\src\roslyn\Roslyn.sln]
C:\git\dotnet\src\roslyn\src\Compilers\CSharp\Test\Emit3\Microsoft.CodeAnalysis.CSharp.Emit3.UnitTests.csproj : error NU1109: Detected package downgrade: Microsoft.TestPlatform.ObjectModel from 17.12.0 to centrally defined 17.5.0. Update the centrally managed package version to a higher version.  [C:\git\dotnet\src\roslyn\Roslyn.sln]
C:\git\dotnet\src\roslyn\src\Compilers\CSharp\Test\Emit3\Microsoft.CodeAnalysis.CSharp.Emit3.UnitTests.csproj : error NU1109:  Microsoft.CodeAnalysis.CSharp.Emit3.UnitTests -> Microsoft.NET.Test.Sdk 17.12.0 -> Microsoft.TestPlatform.TestHost 17.12.0 -> Microsoft.TestPlatform.ObjectModel (>= 17.12.0)  [C:\git\dotnet\src\roslyn\Roslyn.sln]
C:\git\dotnet\src\roslyn\src\Compilers\CSharp\Test\Emit3\Microsoft.CodeAnalysis.CSharp.Emit3.UnitTests.csproj : error NU1109:  Microsoft.CodeAnalysis.CSharp.Emit3.UnitTests -> Microsoft.TestPlatform.ObjectModel (>= 17.5.0) [C:\git\dotnet\src\roslyn\Roslyn.sln]
C:\git\dotnet\src\roslyn\src\Compilers\CSharp\Test\EndToEnd\Microsoft.CodeAnalysis.CSharp.EndToEnd.UnitTests.csproj : error NU1109: Detected package downgrade: Microsoft.TestPlatform.ObjectModel from 17.12.0 to centrally defined 17.5.0. Update the centrally managed package version to a higher version.  [C:\git\dotnet\src\roslyn\Roslyn.sln]
C:\git\dotnet\src\roslyn\src\Compilers\CSharp\Test\EndToEnd\Microsoft.CodeAnalysis.CSharp.EndToEnd.UnitTests.csproj : error NU1109:  Microsoft.CodeAnalysis.CSharp.EndToEnd.UnitTests -> Microsoft.NET.Test.Sdk 17.12.0 -> Microsoft.TestPlatform.TestHost 17.12.0 -> Microsoft.TestPlatform.ObjectModel (>= 17.12.0)  [C:\git\dotnet\src\roslyn\Roslyn.sln]
C:\git\dotnet\src\roslyn\src\Compilers\CSharp\Test\EndToEnd\Microsoft.CodeAnalysis.CSharp.EndToEnd.UnitTests.csproj : error NU1109:  Microsoft.CodeAnalysis.CSharp.EndToEnd.UnitTests -> Microsoft.TestPlatform.ObjectModel (>= 17.5.0) [C:\git\dotnet\src\roslyn\Roslyn.sln]
C:\git\dotnet\src\roslyn\src\Compilers\CSharp\Test\Emit\Microsoft.CodeAnalysis.CSharp.Emit.UnitTests.csproj : error NU1109: Detected package downgrade: Microsoft.TestPlatform.ObjectModel from 17.12.0 to centrally defined 17.5.0. Update the centrally managed package version to a higher version.  [C:\git\dotnet\src\roslyn\Roslyn.sln]
C:\git\dotnet\src\roslyn\src\Compilers\CSharp\Test\Emit\Microsoft.CodeAnalysis.CSharp.Emit.UnitTests.csproj : error NU1109:  Microsoft.CodeAnalysis.CSharp.Emit.UnitTests -> Microsoft.NET.Test.Sdk 17.12.0 -> Microsoft.TestPlatform.TestHost 17.12.0 -> Microsoft.TestPlatform.ObjectModel (>= 17.12.0)  [C:\git\dotnet\src\roslyn\Roslyn.sln]
C:\git\dotnet\src\roslyn\src\Compilers\CSharp\Test\Emit\Microsoft.CodeAnalysis.CSharp.Emit.UnitTests.csproj : error NU1109:  Microsoft.CodeAnalysis.CSharp.Emit.UnitTests -> Microsoft.TestPlatform.ObjectModel (>= 17.5.0) [C:\git\dotnet\src\roslyn\Roslyn.sln]
C:\git\dotnet\src\roslyn\src\Compilers\CSharp\Test\Emit2\Microsoft.CodeAnalysis.CSharp.Emit2.UnitTests.csproj : error NU1109: Detected package downgrade: Microsoft.TestPlatform.ObjectModel from 17.12.0 to centrally defined 17.5.0. Update the centrally managed package version to a higher version.  [C:\git\dotnet\src\roslyn\Roslyn.sln]
C:\git\dotnet\src\roslyn\src\Compilers\CSharp\Test\Emit2\Microsoft.CodeAnalysis.CSharp.Emit2.UnitTests.csproj : error NU1109:  Microsoft.CodeAnalysis.CSharp.Emit2.UnitTests -> Microsoft.NET.Test.Sdk 17.12.0 -> Microsoft.TestPlatform.TestHost 17.12.0 -> Microsoft.TestPlatform.ObjectModel (>= 17.12.0)  [C:\git\dotnet\src\roslyn\Roslyn.sln]
C:\git\dotnet\src\roslyn\src\Compilers\CSharp\Test\Emit2\Microsoft.CodeAnalysis.CSharp.Emit2.UnitTests.csproj : error NU1109:  Microsoft.CodeAnalysis.CSharp.Emit2.UnitTests -> Microsoft.TestPlatform.ObjectModel (>= 17.5.0) [C:\git\dotnet\src\roslyn\Roslyn.sln]
C:\git\dotnet\src\roslyn\src\Compilers\CSharp\Test\CommandLine\Microsoft.CodeAnalysis.CSharp.CommandLine.UnitTests.csproj : error NU1109: Detected package downgrade: Microsoft.TestPlatform.ObjectModel from 17.12.0 to centrally defined 17.5.0. Update the centrally managed package version to a higher version.  [C:\git\dotnet\src\roslyn\Roslyn.sln]
C:\git\dotnet\src\roslyn\src\Compilers\CSharp\Test\CommandLine\Microsoft.CodeAnalysis.CSharp.CommandLine.UnitTests.csproj : error NU1109:  Microsoft.CodeAnalysis.CSharp.CommandLine.UnitTests -> Microsoft.NET.Test.Sdk 17.12.0 -> Microsoft.TestPlatform.TestHost 17.12.0 -> Microsoft.TestPlatform.ObjectModel (>= 17.12.0)  [C:\git\dotnet\src\roslyn\Roslyn.sln]
C:\git\dotnet\src\roslyn\src\Compilers\CSharp\Test\CommandLine\Microsoft.CodeAnalysis.CSharp.CommandLine.UnitTests.csproj : error NU1109:  Microsoft.CodeAnalysis.CSharp.CommandLine.UnitTests -> Microsoft.TestPlatform.ObjectModel (>= 17.5.0) [C:\git\dotnet\src\roslyn\Roslyn.sln]
C:\git\dotnet\src\roslyn\src\Compilers\Core\RebuildTest\Microsoft.CodeAnalysis.Rebuild.UnitTests.csproj : error NU1109: Detected package downgrade: Microsoft.TestPlatform.ObjectModel from 17.12.0 to centrally defined 17.5.0. Update the centrally managed package version to a higher version.  [C:\git\dotnet\src\roslyn\Roslyn.sln]
C:\git\dotnet\src\roslyn\src\Compilers\Core\RebuildTest\Microsoft.CodeAnalysis.Rebuild.UnitTests.csproj : error NU1109:  Microsoft.CodeAnalysis.Rebuild.UnitTests -> Microsoft.NET.Test.Sdk 17.12.0 -> Microsoft.TestPlatform.TestHost 17.12.0 -> Microsoft.TestPlatform.ObjectModel (>= 17.12.0)  [C:\git\dotnet\src\roslyn\Roslyn.sln]
C:\git\dotnet\src\roslyn\src\Compilers\Core\RebuildTest\Microsoft.CodeAnalysis.Rebuild.UnitTests.csproj : error NU1109:  Microsoft.CodeAnalysis.Rebuild.UnitTests -> Microsoft.TestPlatform.ObjectModel (>= 17.5.0) [C:\git\dotnet\src\roslyn\Roslyn.sln]
C:\git\dotnet\src\roslyn\src\Compilers\Core\MSBuildTaskTests\Microsoft.Build.Tasks.CodeAnalysis.UnitTests.csproj : error NU1109: Detected package downgrade: Microsoft.TestPlatform.ObjectModel from 17.12.0 to centrally defined 17.5.0. Update the centrally managed package version to a higher version.  [C:\git\dotnet\src\roslyn\Roslyn.sln]
C:\git\dotnet\src\roslyn\src\Compilers\Core\MSBuildTaskTests\Microsoft.Build.Tasks.CodeAnalysis.UnitTests.csproj : error NU1109:  Microsoft.Build.Tasks.CodeAnalysis.UnitTests -> Microsoft.NET.Test.Sdk 17.12.0 -> Microsoft.TestPlatform.TestHost 17.12.0 -> Microsoft.TestPlatform.ObjectModel (>= 17.12.0)  [C:\git\dotnet\src\roslyn\Roslyn.sln]
C:\git\dotnet\src\roslyn\src\Compilers\Core\MSBuildTaskTests\Microsoft.Build.Tasks.CodeAnalysis.UnitTests.csproj : error NU1109:  Microsoft.Build.Tasks.CodeAnalysis.UnitTests -> Microsoft.TestPlatform.ObjectModel (>= 17.5.0) [C:\git\dotnet\src\roslyn\Roslyn.sln]
C:\git\dotnet\src\roslyn\src\Compilers\CSharp\Test\Semantic\Microsoft.CodeAnalysis.CSharp.Semantic.UnitTests.csproj : error NU1109: Detected package downgrade: Microsoft.TestPlatform.ObjectModel from 17.12.0 to centrally defined 17.5.0. Update the centrally managed package version to a higher version.  [C:\git\dotnet\src\roslyn\Roslyn.sln]
C:\git\dotnet\src\roslyn\src\Compilers\CSharp\Test\Semantic\Microsoft.CodeAnalysis.CSharp.Semantic.UnitTests.csproj : error NU1109:  Microsoft.CodeAnalysis.CSharp.Semantic.UnitTests -> Microsoft.NET.Test.Sdk 17.12.0 -> Microsoft.TestPlatform.TestHost 17.12.0 -> Microsoft.TestPlatform.ObjectModel (>= 17.12.0)  [C:\git\dotnet\src\roslyn\Roslyn.sln]
C:\git\dotnet\src\roslyn\src\Compilers\CSharp\Test\Semantic\Microsoft.CodeAnalysis.CSharp.Semantic.UnitTests.csproj : error NU1109:  Microsoft.CodeAnalysis.CSharp.Semantic.UnitTests -> Microsoft.TestPlatform.ObjectModel (>= 17.5.0) [C:\git\dotnet\src\roslyn\Roslyn.sln]

For repro, add /p:DotNetBuildTests=true to your Windows VMR build command, i.e.: build -prepareMachine -c Release /p:TargetOS=windows /p:TargetArchitecture=x64 /bl /p:DotNetBuildTests=true

[jaredpar]

@NikolaMilosavljevic, @ViktorHofer, @MichaelSimons

Don't think bugs with this information are particularly helpful. Pretty much no one on this team has built the VMR, nor are we aware of instructions on how to build it, or even what configuration in VMR could cause this to be a problem. This is just a wall of warnings.

For these bugs to be actionable I think we need to include:

1. Instructions on how to enlist and build the VMR
2. Documentation on how the VMR builds are different that can lead to these type of problems