The target platform identifier ios was not recognized

[lokinfey]

I try to build net6-samples ,but it shows:

/usr/local/share/dotnet/sdk/6.0.100-alpha.1.20562.2/Sdks/Microsoft.NET.Sdk/targets/Microsoft.NET.TargetFrameworkInference.targets(109,5): error NETSDK1139: The target platform identifier ios was not recognized. [/Users/lokinfey/Downloads/net6-samples-main/HelloiOS/HelloiOS.csproj]

[lokinfey]

I restart my mac, eveything is okay

[jonathanpeppers]

Sometimes I have to kill all dotnet processes, and that’s probably why it fixed it. Let us know if you find other bugs, thanks.

[chucker]

I just ran into this very error, in preview 1:

> dotnet build HelloiOS
Microsoft (R) Build Engine version 16.9.0-preview-21103-02+198f3f262 for .NET
Copyright (C) Microsoft Corporation. All rights reserved.

  Determining projects to restore...
/usr/local/share/dotnet/sdk/6.0.100-preview.1.21103.13/Sdks/Microsoft.NET.Sdk/targets/Microsoft.NET.TargetFrameworkInference.targets(109,5): error NETSDK1139: The target platform identifier ios was not recognized. [/Users/chucker/net6-mobile-samples/HelloiOS/HelloiOS.csproj]

Build FAILED.

/usr/local/share/dotnet/sdk/6.0.100-preview.1.21103.13/Sdks/Microsoft.NET.Sdk/targets/Microsoft.NET.TargetFrameworkInference.targets(109,5): error NETSDK1139: The target platform identifier ios was not recognized. [/Users/chucker/net6-mobile-samples/HelloiOS/HelloiOS.csproj]
    0 Warning(s)
    1 Error(s)

I tried a macOS restart (though no dotnet processes were running), to no avail.

Should I file a separate bug?

[rolfbjarne]

@chucker you must create the EnableWorkloadResolver.sentinel file (as described in the README), or alternatively export MSBuildEnableWorkloadResolver=true for the same effect.