Objective C, Thread 1 Program Received Signal SIGABRT

This problem came to me in Xcode 4.2 because i had added one property on button and then that property is synthesized…
As i remove that property and synthesize paraphrase. my program stopped working…
i thought that doing that silly mistakes makes me create new project again….i did this twice.
Then when i developed a calculator then i got angered and searched over net but did not got the problem solved.
Then after a long search i came to know that button’s delegate were still assigned.
So i gone to “Show the connections inspector” in right corner and removed the delegate…and my program started working..!!
hope this would help you guys…..

Thank You..!! 


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