Xcode playground gets stuck on 'Running playground' or 'Launching simulator' and won't run the code, what to do?

Question

Every time I create a new playground in order to test some code, Xcode gets stuck and won\'t run the code. It simply presents \'Running playground\' or \'Launching simulator

Answer 1

I have cancelled the comment on the first line. It solved for me. Make sure to try it after you have closed and relaunched Xcode and force quit com.apple.coresimulator from Activity Monitor