[2.0 beta 2] NameError: name 'LargeFile' is not defined

[Andres Rodriguez]

<root@maasx>:/var/log/apt# apt dist-upgrade
Reading package lists... Done
Building dependency tree
Reading state information... Done
Calculating upgrade... Done
The following packages were automatically installed and are no longer required:
  iproute libecap2v5 libllvm3.6v5 python3-characteristic python3-dns
Use 'apt autoremove' to remove them.
0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.
2 not fully installed or removed.
After this operation, 0 B of additional disk space will be used.
Do you want to continue? [Y/n]
Setting up maas-region-controller (2.0.0~beta2+bzr4920-0ubuntu1) ...
Operations to perform:
  Synchronize unmigrated apps: messages, staticfiles
  Apply all migrations: maasserver, piston3, contenttypes, sessions, metadataserver, auth, sites
Synchronizing apps without migrations:
  Creating tables...
    Running deferred SQL...
  Installing custom SQL...
Running migrations:
  Rendering model states... DONE
  Applying maasserver.0044_remove_di_bootresourcefiles...Traceback (most recent call last):
  File "/usr/lib/python3/dist-packages/django/db/models/fields/related.py", line 600, in __get__
    rel_obj = getattr(instance, self.cache_name)
AttributeError: 'BootResourceFile' object has no attribute '_largefile_cache'

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/usr/lib/python3/dist-packages/maasserver/migrations/builtin/maasserver/0044_remove_di_bootresourcefiles.py", line 24, in remove_di_bootresourcefiles
    largefile = resource_file.largefile
  File "/usr/lib/python3/dist-packages/django/db/models/fields/related.py", line 617, in __get__
    rel_obj = qs.get()
  File "/usr/lib/python3/dist-packages/django/db/models/query.py", line 334, in get
    self.model._meta.object_name
__fake__.DoesNotExist: LargeFile matching query does not exist.

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/usr/sbin/maas-region", line 67, in <module>
    main()
  File "/usr/sbin/maas-region", line 63, in main
    run()
  File "/usr/sbin/maas-region", line 51, in run
    management.execute_from_command_line()
  File "/usr/lib/python3/dist-packages/django/core/management/__init__.py", line 354, in execute_from_command_line
    utility.execute()
  File "/usr/lib/python3/dist-packages/django/core/management/__init__.py", line 346, in execute
    self.fetch_command(subcommand).run_from_argv(self.argv)
  File "/usr/lib/python3/dist-packages/django/core/management/base.py", line 394, in run_from_argv
    self.execute(*args, **cmd_options)
  File "/usr/lib/python3/dist-packages/django/core/management/base.py", line 445, in execute
    output = self.handle(*args, **options)
  File "/usr/lib/python3/dist-packages/maasserver/management/commands/dbupgrade.py", line 320, in handle
    fake_initial=self._south_was_performed(database))
  File "/usr/lib/python3/dist-packages/django/core/management/__init__.py", line 120, in call_command
    return command.execute(*args, **defaults)
  File "/usr/lib/python3/dist-packages/django/core/management/base.py", line 445, in execute
    output = self.handle(*args, **options)
  File "/usr/lib/python3/dist-packages/django/core/management/commands/migrate.py", line 222, in handle
    executor.migrate(targets, plan, fake=fake, fake_initial=fake_initial)
  File "/usr/lib/python3/dist-packages/django/db/migrations/executor.py", line 110, in migrate
    self.apply_migration(states[migration], migration, fake=fake, fake_initial=fake_initial)
  File "/usr/lib/python3/dist-packages/django/db/migrations/executor.py", line 148, in apply_migration
    state = migration.apply(state, schema_editor)
  File "/usr/lib/python3/dist-packages/django/db/migrations/migration.py", line 115, in apply
    operation.database_forwards(self.app_label, schema_editor, old_state, project_state)
  File "/usr/lib/python3/dist-packages/django/db/migrations/operations/special.py", line 183, in database_forwards
    self.code(from_state.apps, schema_editor)
  File "/usr/lib/python3/dist-packages/maasserver/migrations/builtin/maasserver/0044_remove_di_bootresourcefiles.py", line 25, in remove_di_bootresourcefiles
    except LargeFile.DoesNotExist:
NameError: name 'LargeFile' is not defined
dpkg: error processing package maas-region-controller (--configure):
 subprocess installed post-installation script returned error exit status 1
dpkg: dependency problems prevent configuration of maas:
 maas depends on maas-region-controller (= 2.0.0~beta2+bzr4920-0ubuntu1); however:
  Package maas-region-controller is not configured yet.

dpkg: error processing package maas (--configure):
 dependency problems - leaving unconfigured
No apport report written because the error message indicates its a followup error from a previous failure.
                                                                                                          Errors were encountered while processing:
 maas-region-controller
 maas
E: Sub-process /usr/bin/dpkg returned an error code (1)