How to find the cause of a malloc “double free” error?

Question

I\'m programming an application in Objective-C and I\'m getting this error:

MyApp(2121,0xb0185000) malloc: *** error for object 0x1068310: double

Answer 1

This is what the malloc_error_break breakpoint looks like in the Breakpoints window in Xcode. Need to check the boxes to make it work.

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