COCOS2D AND XCODE

I have been testing out Cocos2d and after installing it xCode started going crazy.

'New File' started crashing

I have installed cocos2d 1.0.1 on xCode 3.2.6, everything is okay, templates are installed and HelloWorld project compiles successfuly.
But when i need to create a new class,after clicking on "New File" i will get this error twice:

File: /SourceCache/DevToolsIDE/DevToolsIDE-1760/pbxinterface/Wizards.subproj/PBXWizardChooserWizard.m
Line: 1158
Object:
Method: _addWizardProxiesFromBaseSearchPath:subpath:

Assertion failed: _currentMultiWizard == nil

I had to delete any folder called cocos2d in both my user and system Libraries:

/Library/Application Support/Developer/Shared/Xcode/File Templates/