How can I start over if I’ve messed up my IntelliJ setup? #

See the how-to video ‘Start over your IntelliJ setup’.

How can I turn on distraction-free mode in IntelliJ? #

See this Stack overflow article.

Why do I get an error message Class JavaLaunchHelper is implemented in both /Library/Java/JavaVirtualMachi...? #

This is a known bug in the current version of IntelliJ. For now you can safely ignore it.

Why can’t I click the Run button? #

If the run button is greyed out, but you can otherwise run your code in debug mode or run with coverage, then try restarting IntelliJ.

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