[Zope] CoreSessionTracking install Problem

[Jacob Singh]

After installing CoreSessionTracking, I received this error when
starting Zope:


2001-12-05T15:36:57 ERROR(200) Zope Couldn't install CoreSessionTracking
Traceback (innermost last):
  File /home/org/lib/python/OFS/Application.py, line 668, in
install_product
    (Object: Zope)
    (Info: CoreSessionTracking)
  File /home/org/lib/python/Products/CoreSessionTracking/__init__.py,
line 97, in initialie
  File /home/org/lib/python/App/ProductContext.py, line 233, in
registerClass
  File /home/org/lib/python/Interface/Util.py, line 66, in
instancesOfObjectImplements
    (Object: SessionIdManager)
  File /home/org/lib/python/Interface/Util.py, line 72, in _wi
    (Object: SessionIdManagerInterface)
TypeError: loop over non-sequence

Any Ideas?