"STM32NucleoPowerControl is the name of my old programming project I don't need anymore. Maybe this odd structure was generated by some crazy IDE? When I try to delete this folder, Finder says that the folder cannot be deleted because item "gcc" is in use. When I skip it, item "ARM" is in use, and so on with other files. Therefore, I have to skip all these files every time when I empty the trash. Thanks for help!