On upgrading to cocos2d 2.x for 1.x, the project fails to compile and the following two errors are displayed:
1) Cannot find protocol declaration for CCTargetTouchDelegate
2) Cannot find protocol declaration for CCStandardTouchDelegate
In cocos2d 2.x the delegates class names have been renamed as follows:
CCTargetedTouchDelegate -> CCTouchOneByOneDelegate
CCStandardTouchDelegate -> CCTouchAllAtOnceDelegate
So simply change all places and replace old delegate names with new ones throughout your project classes.