title: What is Debugging?
body: <p>How does debugging work? When I write code in Xcode and something is wrong. I always look at the Red or Orange Triangles with exclamation marks.  This always helped me fix the problems. But when writing an app and it crashes there are no triangles. Just lots of code in the debugging console at the bottom of Xcode. Currently I am having this problem every time I press my <code>Back</code> button:</p>
  
  <p><code>libc++abi.dylib: terminating with uncaught exception of type NSException</code> </p>
  
  <p>(I did add an <code>Objective C</code> exception breakpoint)</p>
  
  <p>How do you fix this problem? </p>