Hi I have installed Zope version 2.3.3 & ZEO1.0. I would like to copy the Data.fs from my previous zope installation which is 2.2.4 to the new one. I copied the Data.fs, Data.fs.lock, Data.fs.tmp & Data.fs.old from the old Zope to the "var" directory in the "Instance_home" directory. I start Zope from the "Instance_home" by invoking "zctl.py". After I copied the Data.fs files to the new Zope, I get the following error. File /export/usr/local/Zope3/Zope_software_home/lib/python/ZEO/ClientCache.py, l ine 325, in update File /export/usr/local/Zope3/Zope_software_home/lib/python/ZEO/ClientCache.py, l ine 401, in _store TypeError: __add__ nor __radd__ defined for these operands ------ 2001-07-04T04:01:45 INFO(0) ZEO Server Close 136753056 ------ 2001-07-04T04:01:45 PROBLEM(100) zdaemon zdaemon: Wed Jul 4 06:01:45 2001: The ki d, 75464, died on me. Can anyone please tell me what could be the problem? I am using python version1.5.2. Thanks for any help. Priya