I just installed Qt Creator 2.6.1 based on Qt 5.0.

I'm trying to open a project made on 4.8 but I can't compile it. It keeps showing me errors of "not such file or directory".

error: C1083: Cannot open include file: 'QtGui/QApplication': No such file or directory 

error: C1083: Cannot open include file: 'QDialog': No such file or directory 

error: C1083: Cannot open include file: 'QMainWindow': No such file or directory 

error: C1083: Cannot open include file: 'QWidget': No such file or directory

And many more.

I added the qmake.exe path to PATH...do I need to do something else?

windows qt qt-creator
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