[NETSDKE2E] With 9.0.100-rc.2.24429.8 SDK exe installed, "Warning: Workload garbage collection failed with error: Failed to get global.json GC roots Value cannot be null. (Parameter 'key')" is shown after installing wasm-tools workload.

[vdtirlochan]

Build:
9.0.100-rc.2.24429.8 SDK on win10-x64

1.Set up a clean machine with .NET SDK exe installed
2.In CLI, run dotnet workload install wasm-tools

Expected Result:
wasm-tools installs successfully without any warnings or errors

Actual Result:
Warning: Workload garbage collection failed with error: Failed to get global.json GC roots Value cannot be null. (Parameter 'key') is shown

Note:
Also seen when installing android workload

dotnet --info
.NET SDK:
Version: 9.0.100-rc.2.24429.8
Commit: 6ccac5f
Workload version: 9.0.100-manifests.839ab7ed
MSBuild version: 17.12.0-preview-24427-01+c256bcca0

Runtime Environment:
OS Name: Windows
OS Version: 10.0.19045
OS Platform: Windows
RID: win-x64
Base Path: C:\Program Files\dotnet\sdk\9.0.100-rc.2.24429.8\

.NET workloads installed:
Configured to use loose manifests when installing new manifests.
[android]
Installation Source: SDK 9.0.100-rc.2
Manifest Version: 35.0.0-rc.2.89/9.0.100-rc.2
Manifest Path: C:\Program Files\dotnet\sdk-manifests\9.0.100-rc.2\microsoft.net.sdk.android\35.0.0-rc.2.89\WorkloadManifest.json
Install Type: Msi

[wasm-tools]
Installation Source: SDK 9.0.100-rc.2
Manifest Version: 9.0.0-rc.2.24429.5/9.0.100-rc.2
Manifest Path: C:\Program Files\dotnet\sdk-manifests\9.0.100-rc.2\microsoft.net.workload.mono.toolchain.current\9.0.0-rc.2.24429.5\WorkloadManifest.json
Install Type: Msi

Host:
Version: 9.0.0-rc.2.24427.10
Architecture: x64
Commit: static

.NET SDKs installed:
9.0.100-rc.2.24429.8 [C:\Program Files\dotnet\sdk]

.NET runtimes installed:
Microsoft.AspNetCore.App 9.0.0-rc.2.24426.2 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
Microsoft.NETCore.App 9.0.0-rc.2.24427.10 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
Microsoft.WindowsDesktop.App 9.0.0-rc.2.24428.1 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]

Other architectures found:
None

Environment variables:
Not set

global.json file:
Not found

Learn more:
https://aka.ms/dotnet/info

Download .NET:
https://aka.ms/dotnet/download

[marcpopMSFT]

@dsplaisted workload garbage collection error. Please take a look.

[v-ainigao]

A similar error occurs when running dotnet workload clean --all with .net9.0.100-rc.2.24460.10sdk on ARM64OS.

Unhandled exception: Microsoft.DotNet.Workloads.Workload.WorkloadException: Failed to get global.json GC roots Value cannot be null. (Parameter 'key')
at Microsoft.DotNet.Installer.Windows.InstallerBase.ExitOnFailure(InstallResponseMessage response, String message)
at Microsoft.DotNet.Installer.Windows.MsiInstallerBase.GetGlobalJsonWorkloadSetVersions(SdkFeatureBand sdkFeatureBand)
at Microsoft.DotNet.Workloads.Workload.Install.NetSdkMsiInstallerClient.GarbageCollect(Func2 getResolverForWorkloadSet, Nullable1 offlineCache, Boolean cleanAllPacks)
at Microsoft.DotNet.Workloads.Workload.Clean.WorkloadCleanCommand.ExecuteGarbageCollection()
at Microsoft.DotNet.Cli.WorkloadCleanCommandParser.<>c.b__3_0(ParseResult parseResult)
at System.CommandLine.Invocation.InvocationPipeline.Invoke(ParseResult parseResult)
at System.CommandLine.ParseResult.Invoke()
at Microsoft.DotNet.Cli.Program.ProcessArgs(String[] args, TimeSpan startupTime, ITelemetry telemetryClient)

[vdanche]

not repro on SDK:9.0.100-rc.2.24474.11(runtime-9.0.0-rc.2.24473.5)

[marcpopMSFT]

Marking closed since it's fixed in the shipping RC2 build