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Mingw32 undefined reference

  • To any interested person , i've figured out that somehow linker when building project was using mings64 bit path and didn't see refferences so i changed manually folder name of mingw 64 bit and somehow qt decided that its time to use PATH of 32-bit version of mingw , then i changed again name of folder back to normall and now its working on 32 bit version and 64 bit version.

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