[ZODB-Dev] UnpicklingError in Ape 1.0

[Dinh Trung Viet]

Hi all,

I had a problem when trying to use Ape 1.0 in Zope 2.7 to store data in
MySQL database. I cannot add objects into the mount point portion (default
is '/sql'). Here is the trace back I found in log file:

2005-04-06T15:12:01 INFO(0) ZODB conflict error at
/sql/manage_addProduct/OFSP/manage_addImage (1 conflicts since startup at
2005-04-06T15:08:45)
------
2005-04-06T15:12:02 ERROR(200) ZODB Couldn't load state for '5'
Traceback (most recent call last):
  File "C:\TestSites\APE\Products\Ape\lib\apelib\zodb3\connection.py", line
359, in setstate
    event = osio.deserialize(oid, obj, classification, state)
  File "C:\TestSites\APE\Products\Ape\lib\apelib\core\io.py", line 160, in
deserialize
    mapper.serializer.deserialize(event, state)
  File "C:\TestSites\APE\Products\Ape\lib\apelib\core\serializers.py", line
121, in deserialize
    s.deserialize(event, state)
  File "C:\TestSites\APE\Products\Ape\lib\apelib\zodb3\serializers.py", line
291, in deserialize
    s = u.load()
UnpicklingError: unpickling stack underflow

I have no idea why. Everything works fine with filesystem storage.
Could anyone help?!

Thanks,
Dtvie