2015-11-13 18:59:57,547 [tornado.application] ERROR:
Traceback (most recent call last):
  File "/home/tower/local/lib/python2.7/site-packages/tower/api/direct.py", line 57, in post
    rd = method(*params)
  File "/home/tower/local/lib/python2.7/site-packages/tower/api/environment.py", line 21, in ansible_inventory
    return e.ansible_inventory()
  File "/home/tower/local/lib/python2.7/site-packages/tower/models/environment.py", line 119, in ansible_inventory
    if not repo.endswith("/"):
AttributeError: 'NoneType' object has no attribute 'endswith'