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While I develop a small GUI application using Qt Creator (MinGW in Windows), the compilation is successful, and the binary is generated. But application is not ran, it gets crashed.

Below is my configuration setup: Qt Version: 4.8.2 MinGW: compilerpath: C:\MinGW\bin\g++ debugger: C:\MinGW\bin\gdb

If I don't use Qt classes (QApplication, QWidget or QString), it works fine. I mean if I use std lib functions, it works fine.

Can any one suggest please?

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Either we guess or you show both code and error. –  Luca Carlon Sep 16 '12 at 12:11
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What is your g++ version? You need to use g++-4.4 with Qt binaries downloaded from their site.

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