System.ArgumentException: Unknown framework version 7.0

Hello, I’m getting System.ArgumentException: Unknown framework version 7.0 when trying to use nunit on .net framework project:

PS D:\devdiv\vscodecoverage> dotnet --version
7.0.100-preview.4.22252.9

PS D:\devdiv\vscodecoverage> dotnet test .\artifacts\bin\Microsoft.CodeCoverage.Console.Common.Tests\Release\net48\Microsoft.CodeCoverage.Console.Common.Tests.dll
Microsoft (R) Test Execution Command Line Tool Version 17.3.0-preview-20220414-05 (x64)
Copyright (c) Microsoft Corporation.  All rights reserved.

Starting test execution, please wait...
A total of 1 test files matched the specified pattern.
Exception System.TypeInitializationException,    Exception thrown executing tests in D:\devdiv\vscodecoverage\.\artifacts\bin\Microsoft.CodeCoverage.Console.Common.Tests\Release\net48\Microsoft.CodeCoverage.Console.Common.Tests.dll
The type initializer for 'NUnit.Engine.Services.RuntimeFrameworkService' threw an exception.
   at NUnit.Engine.Services.RuntimeFrameworkService.ApplyImageData(TestPackage package)
   at NUnit.Engine.Services.RuntimeFrameworkService.SelectRuntimeFramework(TestPackage package)
   at NUnit.Engine.Runners.MasterTestRunner.GetEngineRunner()
   at NUnit.Engine.Runners.MasterTestRunner.Explore(TestFilter filter)
   at NUnit.VisualStudio.TestAdapter.NUnitEngine.NUnitEngineAdapter.Explore(TestFilter filter) in D:\repos\NUnit\nunit3-vs-adapter\src\NUnitTestAdapter\NUnitEngine\NUnitEngineAdapter.cs:line 88
   at NUnit.VisualStudio.TestAdapter.NUnit3TestExecutor.RunAssembly(String assemblyPath, IGrouping`2 testCases, TestFilter filter) in D:\repos\NUnit\nunit3-vs-adapter\src\NUnitTestAdapter\NUnit3TestExecutor.cs:line 275
InnerException: System.ArgumentException: Unknown framework version 7.0
Parameter name: version
   at NUnit.Engine.RuntimeFramework.GetClrVersionForFramework(Version frameworkVersion)
   at NUnit.Engine.RuntimeFramework..ctor(RuntimeType runtime, Version version, String profile)
   at NUnit.Engine.RuntimeFramework.GetNetCoreRuntimesFromDirectoryNames(IEnumerable`1 dirNames)
   at NUnit.Engine.RuntimeFramework.FindDotNetCoreFrameworks()
   at NUnit.Engine.RuntimeFramework.FindAvailableFrameworks()
   at NUnit.Engine.RuntimeFramework.get_AvailableFrameworks()
   at NUnit.Engine.Services.RuntimeFrameworkService..cctor()
No test is available in D:\devdiv\vscodecoverage\.\artifacts\bin\Microsoft.CodeCoverage.Console.Common.Tests\Release\net48\Microsoft.CodeCoverage.Console.Common.Tests.dll. Make sure that test discoverer & executors are registered and platform & framework version settings are appropriate and try again.

Additionally, path to test adapters can be specified using /TestAdapterPath command. Example  /TestAdapterPath:<pathToCustomAdapters>.

This is probably related to https://github.com/nunit/nunit-console/issues/1176 but I’m using vstest.console and adapter.

I’m using:

    <NUnitVersion>3.13.3</NUnitVersion>
    <NUnitTestAdapterVersion>4.2.1</NUnitTestAdapterVersion>

[bxm185]

Upgrade NUnit3TestAdapter to 4.3.1 and the tests should work

[moh-hassan]

I think it is better to follow the advice in documentation:😃

The NUnit3TestAdapter is the best place to start.

Nunit is working fine using NUnit3TestAdapter v4.3.0 in net7 and old frameworks.