[Help] Error while Compiling

[Lapje]

Hello there,

I am new to Qt and this forum, as you may notice.
I couldn't find any threads where this was being discused and since im a noob at this i thought, Lets post it here! o_O

Always when i try to compile i get this error:

Could not find make command: make in the build environment
Error while building project TextFinder (target: Desktop)
When executing build step 'Make'

Could not find make command: make in the build environment
Error while building project TextFinder (target: Desktop)
When executing build step 'Make'

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I also get this screen before opening my project and thought it might have to do with the error:

I did try to compile an empty project, to test if the error occured everytime. It did.
Btw, i used a TUT. So I guess the code i put it is right.

Thanks for your efforts