Syncing inv.vendors
Syncing inv.modelinterfaces
Syncing inv.connectiontypes
Syncing inv.connectionrules
Upgrading inv.objectmodels
Traceback (most recent call last):
  File "manage.py", line 44, in <module>
    execute_from_command_line(sys.argv)
  File "/opt/noc/lib/python2.6/site-packages/django/core/management/__init__.py", line 443, in execute_from_command_line
    utility.execute()
  File "/opt/noc/lib/python2.6/site-packages/django/core/management/__init__.py", line 382, in execute
    self.fetch_command(subcommand).run_from_argv(self.argv)
  File "/opt/noc/lib/python2.6/site-packages/django/core/management/base.py", line 196, in run_from_argv
    self.execute(*args, **options.__dict__)
  File "/opt/noc/lib/python2.6/site-packages/django/core/management/base.py", line 232, in execute
    output = self.handle(*args, **options)
  File "/opt/noc/main/management/commands/collection.py", line 78, in handle
    return self.handle_sync()
  File "/opt/noc/main/management/commands/collection.py", line 101, in handle_sync
    lc.apply(dc)
  File "/opt/noc/lib/collection.py", line 118, in apply
    self.upgrade_collection(collection)
  File "/opt/noc/lib/collection.py", line 301, in upgrade_collection
    upgrade_item(u)
  File "/opt/noc/lib/collection.py", line 282, in upgrade_item
    d = self.dereference(self.doc, d)
  File "/opt/noc/lib/collection.py", line 204, in dereference
    for k in d:
TypeError: 'NoneType' object is not iterable
upgrade-user: 56: collection --sync failed
Terminating
upgrade complete
┌─[root@oel] - [/opt/noc] - [Thu Dec 12, 01:42]