[Zope] Why do Copy/Paste attempts fail?

[Roland Reumerman]

I'm using Zope 2.2.1 on NT. I've imported an exported binary file into a 
freshly created Zope server [whose objects somehow show up under some Zope 
folder]. I want to remove the entire object structure one level up, because 
all the paths contained in those objects are no longer valid. Therefore I 
perform several copy/paste and cut/paste operations on the several DTML 
methods etc. in the Zope sub folder. However, they all fail with the same 
error message, both as super user and manager:

One or more items referred to in the clipboard data was not found. The item 
may have been moved or deleted after you copied it.

What is going on here?

Traceback (innermost last):
  File E:\PROGRA~1\DDSN\lib\python\ZPublisher\Publish.py, line 222, in 
publish_module
  File E:\PROGRA~1\DDSN\lib\python\ZPublisher\Publish.py, line 187, in 
publish
  File E:\PROGRA~1\DDSN\lib\python\Zope\__init__.py, line 221, in 
zpublisher_exception_hook
    (Object: ApplicationDefaultPermissions)
  File E:\PROGRA~1\DDSN\lib\python\ZPublisher\Publish.py, line 171, in 
publish
  File E:\PROGRA~1\DDSN\lib\python\ZPublisher\mapply.py, line 160, in mapply
    (Object: manage_pasteObjects)
  File E:\PROGRA~1\DDSN\lib\python\ZPublisher\Publish.py, line 112, in 
call_object
    (Object: manage_pasteObjects)
  File E:\PROGRA~1\DDSN\lib\python\OFS\CopySupport.py, line 202, in 
manage_pasteObjects
    (Object: ApplicationDefaultPermissions)
Copy Error: (see above)

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