How to trace where Xcode program crash

Question

I\'m getting an error in debugger. In Thread my app crash on line:

0x37265f78:  ldr    r3, [r4, #8]

with:

Thread 1: EXC_BAD         


        

Answer 1

http://www.raywenderlich.com/10209/my-app-crashed-now-what-part-1

Best tutorial for trace the error.