Solved!

Recompiled source file, where

Qt Code:
  1. int main(int argc, char* argv[])
  2. {
  3. QApplication app(argc, argv);
  4.  
  5. PhotoWarperWindow window;
  6.  
  7. window.show();
  8.  
  9. return app.exec();
  10. }
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And built app, problem cleared... ((