(ckan) inghamn@drifter:/srv/sites/ckan$ paster --plugin=ckan db upgrade -c /srv/sites/ckan/etc/production.ini
Traceback (most recent call last):
  File "/srv/sites/ckan/bin/paster", line 11, in <module>
    sys.exit(run())
  File "/srv/sites/ckan/local/lib/python2.7/site-packages/paste/script/command.py", line 102, in run
    invoke(command, command_name, options, args[1:])
  File "/srv/sites/ckan/local/lib/python2.7/site-packages/paste/script/command.py", line 141, in invoke
    exit_code = runner.run(args)
  File "/srv/sites/ckan/local/lib/python2.7/site-packages/paste/script/command.py", line 236, in run
    result = self.command()
  File "/srv/sites/ckan/src/ckan/ckan/lib/cli.py", line 357, in command
    self._load_config(cmd!='upgrade')
  File "/srv/sites/ckan/src/ckan/ckan/lib/cli.py", line 330, in _load_config
    self.site_user = load_config(self.options.config, load_site_user)
  File "/srv/sites/ckan/src/ckan/ckan/lib/cli.py", line 237, in load_config
    load_environment(conf.global_conf, conf.local_conf)
  File "/srv/sites/ckan/src/ckan/ckan/config/environment.py", line 112, in load_environment
    p.load_all()
  File "/srv/sites/ckan/src/ckan/ckan/plugins/core.py", line 140, in load_all
    load(*plugins)
  File "/srv/sites/ckan/src/ckan/ckan/plugins/core.py", line 154, in load
    service = _get_service(plugin)
  File "/srv/sites/ckan/src/ckan/ckan/plugins/core.py", line 256, in _get_service
    return plugin.load()(name=plugin_name)
  File "/srv/sites/ckan/local/lib/python2.7/site-packages/pkg_resources/__init__.py", line 2324, in load
    return self.resolve()
  File "/srv/sites/ckan/local/lib/python2.7/site-packages/pkg_resources/__init__.py", line 2334, in resolve
    raise ImportError(str(exc))
ImportError: 'module' object has no attribute 'DataJsonPlugin'