Cannot open Unit Test Runner

I downloaded the asset “Unity Test Tools” made by Unity.
The documentation says:

“You open the Unit Test Runner from the menu bar Unity Test Tools/Unit Test Runner or by shift+ctrl+alt+u combination.”
I haven’t got such menu or library with any runnable, neither do the shortkeys work.
I have tried to open another scene, another project, reset computer, but did not help.

Also I have the following error messages on Console:

Assets/UnityTestTools/UnitTesting/Editor/NUnit/Renderer/UnitTestRendererLine.cs(29,46): error CS1061: Type Test' does not contain a definition for TestName’ and no extension method TestName' of type Test’ could be found (are you missing a using directive or an assembly reference?)

Assets/UnityTestTools/UnitTesting/Editor/NUnit/Renderer/UnitTestRendererLine.cs(30,50): error CS1061: Type Test' does not contain a definition for TestName’ and no extension method TestName' of type Test’ could be found (are you missing a using directive or an assembly reference?)

…and so on for GroupLine.cs and UnitTestRendererLine.cs.
I have read in the same doc that content of “Editor” folder should not even be compiled, so I really do not understand these messages.

“It’s recommended to keep the unit test files under Editor folder so they won’t be included in the build”

Another asset had a class named Test. Removing the asset let the project build.