Just installed the 2.2 preview 3 sdk - fails with MSB4018

[Allann]

Just installed latest SDK preview (first time using 2.2), and when I try to build my solution it fails inside Visual Studio, but not Visual Studio Code.

Error	MSB4018	The "GenerateDepsFile" task failed unexpectedly.
System.Collections.Generic.KeyNotFoundException: The given key was not present in the dictionary.
   at System.Collections.Generic.Dictionary`2.get_Item(TKey key)
   at Microsoft.NET.Build.Tasks.LockFileExtensions.CollectDependencies(IDictionary`2 libraryLookup, IEnumerable`1 dependencies, HashSet`1 exclusionList)
   at Microsoft.NET.Build.Tasks.LockFileExtensions.CollectDependencies(IDictionary`2 libraryLookup, IEnumerable`1 dependencies, HashSet`1 exclusionList)
   at Microsoft.NET.Build.Tasks.LockFileExtensions.CollectDependencies(IDictionary`2 libraryLookup, IEnumerable`1 dependencies, HashSet`1 exclusionList)
   at Microsoft.NET.Build.Tasks.LockFileExtensions.CollectDependencies(IDictionary`2 libraryLookup, IEnumerable`1 dependencies, HashSet`1 exclusionList)
   at Microsoft.NET.Build.Tasks.LockFileExtensions.GetPlatformExclusionList(LockFileTarget lockFileTarget, LockFileTargetLibrary platformLibrary, IDictionary`2 libraryLookup)
   at Microsoft.NET.Build.Tasks.ProjectContext.GetRuntimeLibraries(IEnumerable`1 excludeFromPublishPackageIds)
   at Microsoft.NET.Build.Tasks.DependencyContextBuilder.Build()
   at Microsoft.NET.Build.Tasks.GenerateDepsFile.ExecuteCore()
   at Microsoft.NET.Build.Tasks.TaskBase.Execute()
   at Microsoft.Build.BackEnd.TaskExecutionHost.Microsoft.Build.BackEnd.ITaskExecutionHost.Execute()
   at Microsoft.Build.BackEnd.TaskBuilder.<ExecuteInstantiatedTask>d__26.MoveNext()	Core.Messaging.Tests	C:\Program Files\dotnet\sdk\2.2.100-preview3-009430\Sdks\Microsoft.NET.Sdk\targets\Microsoft.NET.Sdk.targets	129	

Visual Studio 2017: 15.9.0 Preview 4 (also fails in 15.8.8)
Microsoft .NET Core SDK 2.2.100 0 Preview3 (x64)
OS: Windows 10 Enterprise 1803 (17134.345)

Solution build log attached
bugrepo.zip

[livarcocc]

@dsplaisted can you take a look?

[Allann]

A slight deviation from this issue, but because of this, I uninstalled ALL .Net Core SDK versions present on the machine via the Add/Remove programs setting page, and then installed dotnet-sdk-2.1.403-win-x64.exe (latest from the dot net download page) which worked successfully.
Note - a reboot was done after the uninstall and reinstall of latest.
But now I get a different issue:
Error The current .NET SDK does not support targeting .NET Core 2.1. Either target .NET Core 1.1 or lower, or use a version of the .NET SDK that supports .NET Core 2.1. Core.Messaging.Tests F:\Microsoft Visual Studio\2017\Enterprise\MSBuild\Sdks\Microsoft.NET.Sdk\build\Microsoft.NET.TargetFrameworkInference.targets 112
I believe this is because dotnet wasn't added to my path. Not sure what the path should be. This is confirmed by doing a dotnet --info on the command line:

'dotnet' is not recognized as an internal or external command,
operable program or batch file.

Or should I raise this as a separate issue with Core-Setup team?

[Allann]

Once SDK (2.1.403) was installed and the path added back in and changing no code in the solution, it now builds again fine.

[dsplaisted]

This looks like the issue that was fixed with this PR: #2581

It should be fixed in the next preview. Until then, you should be able to work around this by adding a dependency to the ASP.NET package in your test project, e.g.:

<ItemGroup>
    <PackageReference Include="Microsoft.AspNetCore.App" />
</ItemGroup>

[Allann]

Thanks, will re-install 2.2.1, but by adding app, wouldn't I need to change the project to sdk.web too?