Why does Intellij IDEA suddenly not recognize tests in test folder anymore?

Question

I\'m using JUnit since I started this project and everything works just fine. I have a couple of hundreds tests, and of course, here and there I start them all. Right click on r

Answer 1

Fixed this a few times by... open file --> project structure. There, look on the left side menu as last entry there is "problem" count(if more then zero). click on those and then for for each problem highlighted in red in intellij in modules/libraries, remove them (minus button). They will be given module names like "test1..23" since intellij cant make out the structure. After deleting all marked red, close + restart intellij. Dont run maven refresh at this stage, since it will reintroduce the same error again. By restarting intellij will trigger a new scan of the project structure again.