Swift Installation Error

To whom it may concern, I am very new to OpenStack. I had an error when I install the Swift service. Error trying to load config from /etc/swift/proxy-server.conf: Entry point 'proxy\naccount_autocreate = True' not found in egg 'swift' (dir: /usr/lib/python2.7/dist-packages; protocols: paste.app_factory, paste.composite_factory, paste.composit_factory; entry_points: ) Just wondering if it's ok to have storage node and controller node on the same device. I use the controller node as the storage node, and use the flash drive as the storage space. Not sure if this is the reason for the error. It will be very appreciated if someone can provide some suggestions. Kind regards, Walsh