So if you upgraded to karmic, you may have to downgrade some packages manually. Use SchoolTool PPA for jaunty, and downgrade the following packages:
zodb < 3.9.0 zope.component < 3.6.0 zope.i18n < 3.6.0 zope.location < 3.5.0 zope.publisher < 3.6.0 zope.security < 3.6.0 zope.traversing < 3.6.0
python-schooltool 1:1.0.3-2ubuntu2 package puts that into depends, upgrade it and then resolve other dependencies.
So if you upgraded to karmic, you may have to downgrade some packages manually. Use SchoolTool PPA for jaunty, and downgrade the following packages:
zodb < 3.9.0
zope.component < 3.6.0
zope.i18n < 3.6.0
zope.location < 3.5.0
zope.publisher < 3.6.0
zope.security < 3.6.0
zope.traversing < 3.6.0
python-schooltool 1:1.0.3-2ubuntu2 package puts that into depends, upgrade it and then resolve other dependencies.