title: cocos2d - CCActionTween doesn't work
body: <p>I have roundPath and BoxPath and I would like to do:</p>
  
  <p><code>id modifyPath = [CCActionTween actionWithDuration:2 key:@"path" from:roundPath to:boxpath];</code>
   but I have the error "incompatible type of argument 3 of 'actionWithDuration:key:from:to:' Ho w can I solve this please ? sorry for my english I'm french :/</p>