I got this error message since update my xcode to 6.3.1. 

```
/Users/MNurdin/Documents/iOS/xxxxx/Models/Message.swift:46:10: Method 'hash()' with Objective-C selector 'hash' conflicts with getter for 'hash' from superclass 'NSObject' with the same Objective-C selector

```

My code

```
var hash_ : UInt

func hash() -> UInt {
        return UInt(hash_);
    }

```