Where is the 'tests output pane'?

Question

Unexpected error detected. Check the Tests Output Pane for details.

Where is the \'Tests Output Pane\'? I can\'t find it anywhere in Visual

Answer 1

If you're looking for the actual issue, for me it was:

vstest.discoveryengine.exe and vstest.executionengine.exe

Open up Task Manager, go to Processes tab, right-click and End Process. Restart Visual Studio.