Weird error out of nowhere about "EnumerableTestMethodCommand"

Questions & Answers
1

Hello everyone.

So, im getting this weird error, it started out of nowhere, yesterday it didnt happen, and now i dont know what to do.

it gives me this error:

Library\PackageCache\com.unity.test-framework@1.1.16\UnityEngine.TestRunner\NUnitExtensions\Runner\TestCommandBuilder.cs(31,31): error CS0246: The type or namespace name ‘EnumerableTestMethodCommand’ could not be found (are you missing a using directive or an assembly reference?)

it started in version 2020.1.5f1, i updated now to 2020.1.6f1 and this error persists.

2

Well, if that could help anyone in the future:

something went wrong with my library folder inside the project files.
so, deleting that folder, and opening the project again, seems to fix that problem.