I am trying to migrate my Data.bbb file from my 1.9 installation to a new 1.10 installation. I get a "Sorry, a SERIOUS APPLICATION ERROR occurred." message. In the source of the page, it has the following: ========================================================= <html> <head> <title>exceptions.ImportError</title> </head> <body> Sorry, a SERIOUS APPLICATION ERROR occurred.<p> <!-- Traceback (innermost last): File /usr/local/zope/Zope-1.10.2-src/lib/python/ZPublisher/Publish.py, line 877, in publish_module File /usr/local/zope/Zope-1.10.2-src/lib/python/ZPublisher/Publish.py, line 325, in publish File /usr/local/zope/Zope-1.10.2-src/lib/python/ZPublisher/Publish.py, line 616, in get_module_info File /usr/local/zope/Zope-1.10.2-src/lib/python/Main.py, line 103, in ? File /usr/local/zope/Zope-1.10.2-src/lib/python/OFS/Application.py, line 326, in open_bobobase (Info: ['/usr/local/zope/Zope-1.10.2-src/lib/python', '/usr/local/zope/Zope-1.10.2-src/pcgi', '/usr/local/zope/Zope-1.10.2-src/pcgi', '/usr/local/lib/python1.5/', '/usr/local/lib/python1.5/test', '/usr/local/lib/python1.5/plat-sunos5', '/usr/local/lib/python1.5/lib-tk', '/usr/local/lib/python1.5/lib-dynload']) File /usr/local/zope/Zope-1.10.2-src/lib/python/BoboPOS/PickleDictionary.py, line 178, in __getitem__ File /usr/local/zope/Zope-1.10.2-src/lib/python/BoboPOS/PickleDictionary.py, line 208, in __getitem__ File /usr/local/zope/Zope-1.10.2-src/lib/python/BoboPOS/PickleJar.py, line 271, in setstate ImportError: ('cPickle.UnpicklingError', "invalid load key, 'G'.") --> </body> </html> ========================================================= Before this, I shutdown the Zope process on the 1.10 server and copied the Data.bbb.old file from a Pack operation on the 1.9 server. I renamed it to Data.bbb. Should this work? Does anyone know how to solve this one? Thanks, John Solberg