Can't make my Qt Creator + qmake work

Hello.

That's my first time when I use Qt Creator. At first, I hadn't qmake, so I had to install it. But now Qt Creator marks my qmake paths with a cross (sorry, there are some cyrillic words but I suppose they don't make a big sense):

Attachment 7466

(Qt4 parameters' window)

It says that "make is not found in PATH" every time I click "Rebuild".

So I still can't bulid my program because Qt Creator can't find "make" and says that there was an error during the building process.

Couldn't find any useful information about that... Help?

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Shame on me! I hadn't "make" package. That was so foolish. Please delete this shame-thread...