[ZDP] BackTalk to Document The Zope Book (2.5 Edition)/Extending Zope

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A comment to the paragraph below was recently added via http://www.zope.org/Documentation/Books/ZopeBook/current/CustomZopeObjects.stx#2-51

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    Go ahead and select *ZooExhibit* from the add list and create a
    new Exhibit with the id "FangedRabbits".  After creating the new
    exhibit, select it by clicking on it.

      % Anonymous User - Dec. 13, 2002 6:32 am:
       I'm getting an error any time I try this ..
       Error Type: NameError
       Error Value: global name 'ZooExhibit' is not defined
       I've followed the instructions exactly.
       PS Yes I am a newbie, sorry!!

      % Anonymous User - Dec. 13, 2002 9:52 am:
       If anyone gets the same problem, you may want to try this:

       Click on "/Control Panel/Products/ZooExhibit/ZooExhibit" (so you've actually clicked on the ZClass).
       Click Define Permissions
       Change "Create class instances" to something that the current user definitely has. I think it was on "Add Zoo
       Exhibits", I changed it to "View", and it seemed to work.