The 'XModule' distribution was not found and is required by the application

paver update_assets lms

$ docker exec -t edx.devstack.edxapp bash -c 'source /edx/app/edxapp/edxapp_env; cd /edx/app/edxapp/edx-platform; paver update_assets lms --settings=aws --debug'
---> pavelib.assets.update_assets
---> pavelib.prereqs.install_node_prereqs
Node prereqs unchanged, skipping...
xmodule_assets common/static/xmodule
Traceback (most recent call last):
  File "/edx/app/edxapp/venvs/edxapp/bin/xmodule_assets", line 6, in <module>
    from pkg_resources import load_entry_point
  File "/edx/app/edxapp/venvs/edxapp/local/lib/python2.7/site-packages/pkg_resources/__init__.py", line 3030, in <module>
    @_call_aside
  File "/edx/app/edxapp/venvs/edxapp/local/lib/python2.7/site-packages/pkg_resources/__init__.py", line 3014, in _call_aside
    f(*args, **kwargs)
  File "/edx/app/edxapp/venvs/edxapp/local/lib/python2.7/site-packages/pkg_resources/__init__.py", line 3043, in _initialize_master_working_set
    working_set = WorkingSet._build_master()
  File "/edx/app/edxapp/venvs/edxapp/local/lib/python2.7/site-packages/pkg_resources/__init__.py", line 654, in _build_master
    ws.require(__requires__)
  File "/edx/app/edxapp/venvs/edxapp/local/lib/python2.7/site-packages/pkg_resources/__init__.py", line 968, in require
    needed = self.resolve(parse_requirements(requirements))
  File "/edx/app/edxapp/venvs/edxapp/local/lib/python2.7/site-packages/pkg_resources/__init__.py", line 854, in resolve
    raise DistributionNotFound(req, requirers)
pkg_resources.DistributionNotFound: The 'XModule' distribution was not found and is required by the application


Captured Task Output:
---------------------

---> pavelib.assets.update_assets
---> pavelib.prereqs.install_node_prereqs
xmodule_assets common/static/xmodule

Build failed running pavelib.assets.update_assets: Subprocess return code: 1