It does not compile on Xcode 5

[samorosi]

In PuzzleController.m, at line:

int e = [[[[arrayPieces objectAtIndex:l] edges] objectAtIndex:1] intValue];

there are the following errors:
1 - Multiple methods named 'edges' found with mismatched result, parameter type or attributes
2 - Bad receiver type 'UIRectEdge' (aka 'enum UIRectEdge')

Same errors at line:
int e = [[[[arrayPieces lastObject] edges] objectAtIndex:2] intValue];

[tropicdome]

"edges" was added to uikit in iOS7. Just search every instance of "edges" in the project and replace it with something like "my_edges" and it will work in Xcode 5/iOS7.