[solved]:-1: error: cannot open output file release\counter.exe: Permission denied

[tecky]

today, i write some program, start it and its work ok.
than i make some changes in text and have some error.
after this i pressed ctrl+z and back to my 1st version and have this error:
":-1: error: cannot open output file release\counter.exe: Permission denied
collect2.exe:-1: error: error: ld returned 1 exit status"

what is that?
so i need to restart my Qt creator to open this again =(

[tobias.hunger]

That is an annoying windows behavior: While the application is running its executable file is locked on disk. Close the application (yours, not Qt Creator;), wait for a couple of seconds and try again. Windows will remove the lock and you can build again.

[tecky]

ty [solved]