Extend Magento Module - Wizard error

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What steps will reproduce the problem?
1. New > Magento > Extend Magento Module
2. Fill In the creation  module information and click on next
3. Browse and select the Mage_Customer module (same with other core modules)
4. Choose a class of the Mage_Customer module, here it was 
Mage_Customer_Model_Customer
5. When clicking Finish, I get an error message, see attachment. But I get the 
creation of the module but without overwritten information and/or files.

What is the expected output? What do you see instead?
Have a new Magento module with an overwritten class in the Magento way. It 
means the config.xml updated with a rewrite tag for the selected class of the 
module to overwrite. 

What version of the product are you using? On what operating system?
Zend Studio 8 on Os X, Magento plugin 1.0.2

Please provide any additional information below.
See the screenshot to see the error I get when I want to have the overwritten 
class.

Original issue reported on code.google.com by sylvain....@gmail.com on 19 May 2012 at 10:48

Attachments:

• [Capture d’écran 2012-05-20 à 00.38.27.png](https://storage.googleapis.com/google-code-attachments/magento-plugin/issue-4/comment-0/Capture d’écran 2012-05-20 à 00.38.27.png)