[Zope] NameError: global name 'Project' is not defined

[Mark Lilly]

Hi,
I have gotten this on two different machine.
I created a Product name Project following the example in the Zope Book.
When i make a folder in the root directory and then add this product, i get
the following error when i type in an ID and click Add.
I'm running Zope-2.4.3-win32-x86 on windows 2000.
Last week, on a third machine, it worked fine, but today, on two different
boxes, i get this error.
Any thoughts?
Thanks,
mark

Site Error
An error was encountered while publishing this resource. 
NameError
Sorry, a site error occurred. 
Traceback (innermost last):
  File C:\zz\zope\Southern\lib\python\ZPublisher\Publish.py, line 223, in
publish_module
  File C:\zz\zope\Southern\lib\python\ZPublisher\Publish.py, line 187, in
publish
  File C:\zz\zope\Southern\lib\python\Zope\__init__.py, line 226, in
zpublisher_exception_hook
    (Object: Project_factory)
  File C:\zz\zope\Southern\lib\python\ZPublisher\Publish.py, line 171, in
publish
  File C:\zz\zope\Southern\lib\python\ZPublisher\mapply.py, line 160, in
mapply
    (Object: Project_add)
  File C:\zz\zope\Southern\lib\python\ZPublisher\Publish.py, line 112, in
call_object
    (Object: Project_add)
  File C:\zz\zope\Southern\lib\python\OFS\DTMLMethod.py, line 199, in
__call__
    (Object: Project_add)
  File C:\zz\zope\Southern\lib\python\DocumentTemplate\DT_String.py, line
546, in __call__
    (Object: Project_add)
  File C:\zz\zope\Southern\lib\python\DocumentTemplate\DT_With.py, line 133,
in render
    (Object: Project.createInObjectManager(REQUEST['id'], REQUEST))
  File C:\zz\zope\Southern\lib\python\DocumentTemplate\DT_Util.py, line 231,
in eval
    (Object: Project.createInObjectManager(REQUEST['id'], REQUEST))
    (Info: REQUEST)
  File <string>, line 2, in f
    (Object: guarded_getitem)
NameError: global name 'Project' is not defined