[web2py] Upgrading from 1.91.4 to 1.98.1

[Kenneth Lundström]

I tried to upgrade a development server from 1.91.4 to 1.98.1 and now I 
get these tickets:

Version
web2py^(TM)     Version 1.98.1 (2011-07-31 10:15:50)

Traceback (most recent call last):
  File "/data/domains/gluon/restricted.py", line 192, in restricted
    exec ccode in environment
  File "/data/domains/applications/init/models/2_db.py", line 463, in 
<module>
    migrate=settings.migrate)
  File "/data/domains/gluon/dal.py", line 4311, in define_table
    polymodel=polymodel)
  File "/data/domains/gluon/dal.py", line 593, in create_table
    fields.append('PRIMARY KEY(%s)' % table._id.name)
  File "/data/domains/gluon/dal.py", line 4730, in __getattr__
    return self[key]
  File "/data/domains/gluon/dal.py", line 4674, in __getitem__
    return dict.__getitem__(self, str(key))
KeyError: '_id'

462     db.define_table('returning_revision',
463     db.returning,
464     db.Field  
<https://exp-kal.nudata.fi/examples/global/vars/Field>('returning',db.returning,required=True),
465     migrate=settings.migrate)


Any ideas whats wrong?


Kenneth