关于 ARC forbids explicit message send of 'release'

转载自：http://stackoverflow.com/questions/7164848/arc-error-when-compiling

Simply remove all calls to -release. You're not allowed to call -release under ARC because the compiler will insert all the necessary retain/release calls for you. Read more about ARC here.

The other way is to use the conversion tool, and Xcode can convert your project to ARC (including removing these calls) for you: 

To disable ARC entirely, change your build settings: 

However I'd recommend you start using ARC, it will make things a lot easier and actually faster too.