I write a simple qt program.
when I run the program, there is not any error in release mode.
However, in debug mode, it jumps a warning dialog and the program crash. Shows as follows:



Windows has triggered a breakpoint in QT2.exe.

This may be due to a corruption of the heap, which indicates a bug in QT2.exe or any of the DLLs it has loaded.

This may also be due to the user pressing F12 while QT2.exe has focus.

The output window may have more diagnostic information.



I cost the whole afternoon to slove this problem and still cann't deal with the problem.

Thank you...