FontAwesome图标仅在释放模式下崩溃

Question

When my project in debug mode ,everything work fine. But when I change to release mode, my app crash at

[_menuButton setTitleTextAttributes:@{NSFontAttributeName:[UIFont fontWithName:kFontAwesomeFamilyName size:30.0],
                                     NSForegroundColorAttributeName:[UIColor whiteColor]
                                     } forState:UIControlStateNormal];

the error message is

* Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '* -[__NSPlaceholderDictionary initWithObjects:forKeys:count:]: attempt to insert nil object from objects[0]'

If I commented the code , it can run fine but all FontAwesome icon became question mark.

Any idea to fix it ? Please help , thanks a lot !

Answer 1

As you can see, the error message warns you something becomes nil while inserting, so you need to check which object is nil.

There is a high possibility reason:

[UIFont fontWithName:kFontAwesomeFamilyName size:30.0]

In release mode, kFontAwesomeFamilyName cannot be recognized, or the font file is not bundled into your app, so fontWithName returns nil.