System.TypeLoadException nunit3-console 3.8

I have my test file using NUnit 3.10.1

Here’s the output I’m receiving after running nunit3-console.exe

NUnit Console Runner 3.6.0
Copyright (C) 2017 Charlie Poole

Runtime Environment
   OS Version: Microsoft Windows NT 10.0.16299.0
  CLR Version: 4.0.30319.42000

Test Files
    .\dll_test.dll


Unhandled Exception: NUnit.Engine.NUnitEngineException: Failed to start remote test agent.
   at NUnit.Engine.Services.TestAgency.OnAgentExit(Object sender, EventArgs e)
   at System.Diagnostics.Process.OnExited()
   at System.Diagnostics.Process.RaiseOnExited()
   at System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)
   at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)
   at System.Threading._ThreadPoolWaitOrTimerCallback.PerformWaitOrTimerCallback(Object state, Boolean timedOut)
System.TypeLoadException: Could not load type 'NUnit.Engine.NUnitEngineUnloadException' from assembly 'nunit.engine.api, Version=3.0.0.0, Culture=neutral, PublicKeyToken=2638cd05610744eb'.
   at NUnit.Engine.Runners.ProcessRunner.Dispose(Boolean disposing)
   at NUnit.Engine.Runners.AbstractTestRunner.Dispose()
   at NUnit.Engine.Runners.MasterTestRunner.Dispose(Boolean disposing)
   at NUnit.Engine.Runners.MasterTestRunner.Dispose()
   at NUnit.ConsoleRunner.ConsoleRunner.RunTests(TestPackage package, TestFilter filter)
   at NUnit.ConsoleRunner.Program.Main(String[] args)
PS C:\Users\eyang\Documents\Work\Demonstration\dll_test\dll_test\bin\x64\Debug>

I found this thread (https://github.com/nunit/nunit/issues/1348) but it did not help much.

Cheers!

[reckface]

I also get this error: System.TypeLoadException: Method 'get_TargetFramework' in type 'NUnit.Engine.Extensibility.ExtensionNode' from assembly 'nunit.engine, Version=3.6.1.0, Culture=neutral, PublicKeyToken=2638cd05610744eb' does not have an implementation. This occurs when I’m using Nunit3TestAdapter 3.13.0. However, when I use version 3.11.2, all my tests work fine.

[spring1975]

I just ran into this on one computer, but not another running tests in ReSharper’s test sessions window. I noticed running the tests from the VS Test explorer window, there was no error.

I did get the same results downgrading Nunit3TestAdaptor 3.13.0 to 3.11.2. They started working again in ReSharper’s test window.

So I upgraded to ReSharper 2018.3.4 on the machine it was failing and reverted back to the TestAdapter 3.13.0. Problem gone.