@ksgj Yeah, avoiding whitespaces and special chars in path names makes the developers life easier. So please mark this topic as SOLVED (button Topic Tools below your first post). Thanks

how about changing to MinGW 64 ?

@squirrlmcbuttcheeks Since you are intending "to determine if QT is good or bad", Just to be clear on something... Qt is a C++ framework/library with an object oriented API. Qt is not a programming language. Qt is not a compiler. Qt is not a debugger. Qt Creator is an IDE which is provided to help organise your tools to build your projects. As others have said it looks like your tools, in this case the debugger is at fault. Please do evaluate it in that light and people on this forum will be more than pleased to help you. Good luck and happy coding :-)

What does you code do ?

You may have found a bug then. You should check the bug report system to see if it's something known. If not please consider opening a new report with your sample application.

I didn't think about registry, thank you :) BTW, what about debugger?

Thanks for your advise. I'll try it.