QDateEdit emiting signal problem

Hi All
I have a problem now? I have a QDateEdit on my form, and i promoted it to tarifEdit class which i made it, by promoting from QDateEdit. I have signal here but i can't emitting it!!!!

Why I can't ?

Code:

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moc/tarihedit.o: In function `tarihedit::cikis()':
tarihedit.cpp:(.text+0x485): undefined reference to `tarihedit::kapat_s()'
collect2: ld returned 1 exit status
make[1]: *** [gkdpr] Error 1
make: *** [x86] Error 2
make[1]: Leaving directory `/home/can2/finalize/workspace/gkdpr'

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Probably you forgot required Q_OBJECT macro from the class declaration.