How to solve the SIGABRT error in Xcode 3 ?

XCode is a pretty lousy delouser. It's debugger is usually not very informative and robust compared to other modern IDE's such as Visual Studio, Eclipse, and Netbeans.

SIGABRT is the bane of every iOS programmer. It means something is wrong with your code or you have a broken reference in one of your NIBs.

My best suggestion is to use the breakpoints to isolate where it crashes, and go through each of your views to see if you are using a reference that no longer is valid.

Breakpoints are little blue arrows you create by clicking on the left side of each line. When you run your app in the emulator, it will pause at these points so you can hover your cursor over your variables to see what values they contain at that point in time.

I would definitely spend some time researching and learning about Xcode's debugger. It makes life a little bit easier when your code is not working the way you want.

I take that back. Open Console.app in searchlight and it will have a log of what broke your app. it will provide details of your SIGABRT error.