Good evening!

I created a program and i put a button in it but after thinking better i decided delete it in the design mode, and now, everytime i try to compile the program i get the following message:

QMetaObject::connectSlotsByName: No matching signal for on_execButton_clicked()
How can i fix it?
Is there any option in qtcreator3.4.0 to erase any reference to an object deleted in all my files automatically?