Hello Qt guys...
As a new member to this forum and a Qt newbie - no wonder I come across a few errors from time to time. When I tried to open a new widget project - it compiled and debugged properly. When I got into main.cpp of the widget and changed the code ( just anything ) it wouldn't debug and is giving me this error instead:

:: error: cannot open output file debug\HelloWorld.exe: Permission denied
:: error: collect2: ld returned 1 exit status

What is the reason behind it ? Thank you for any comments.

P.S. My Qt paths seem to be correct I guess. No problems with them..