Qt creator: qmake is not recognized


I am trying to understand 'qmake' by following this tutorial . but when I come the the following command:

qmake -o Makefile hello.pro

my command line console shows me this message:

'qmake' is not recognized as an internal or external command, operable program or batch file

I understood that qmake is part of Qt creator and thus it should be executed whenever I run it within my project's folder. so, why it is not recognized ?

Best Solution

In the start menu entry that was created by the installer for Qt, you should find an item that opens a command prompt with all the needed environment variables (including the PATH) already set. For my Qt 5.0.2 install using MingW, it is called "Qt 5.0.2 for Desktop (MinGW 4.7)".

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