Visual Studio 2015 or 2017 does not discover unit tests

To my surprise, clearing temp files located in the %TEMP% directory resolved the issue for me.

Note: This path is generally at C:\Users\(yourusername)\AppData\Local\Temp

As @Warren-P included, you can navigate to the temp folder by putting in %temp% in Start Menu, or launch “File Explorer” and enter %temp% in the address bar.

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