I can'go automaticaly to the line of error on Output Compilation

Hi,
i think it worked before but now when i have error, i can see for example on Output compilation line 6:45 a not declared but when i click on the line i would like QtCreator to move directly to the good line of the error. Is there a way to make this works ?
Thanks and Happy new year

Hey i reply to myself,
i find the reason, but i don't understand why it is like that. I have to use for compiling (in Project) "cleaning environment" and for launching application "system environment". I DON'T KNOW WHY IT IS LIKE THAT BUT NOW IT WORKS.
Bye