Galaxy admins, 
One of you has probably seen the below error before, can someone explain? for background, we're running our instance on a AWS server (if that makes a difference)


galaxy.web.framework.base DEBUG 2016-05-19 12:43:40,545 Enabling 'sample_tracking' controller, class: SampleTracking
galaxy.web.framework.base DEBUG 2016-05-19 12:43:40,545 Enabling 'system' controller, class: System
galaxy.web.framework.base DEBUG 2016-05-19 12:43:40,546 Enabling 'workflows' controller, class: Workflows
galaxy.web.framework.base DEBUG 2016-05-19 12:43:40,546 Enabling 'users' controller, class: Users
galaxy.web.framework.base DEBUG 2016-05-19 12:43:40,547 Enabling 'jobs' controller, class: Jobs
galaxy.web.framework.base DEBUG 2016-05-19 12:43:40,547 Enabling 'root' controller, class: Report
galaxy.web.framework.base DEBUG 2016-05-19 12:43:40,547 Enabling 'home' controller, class: HomePage
galaxy.webapps.reports.buildapp DEBUG 2016-05-19 12:43:40,548 Enabling 'httpexceptions' middleware
galaxy.webapps.reports.buildapp DEBUG 2016-05-19 12:43:40,549 Enabling 'recursive' middleware
galaxy.webapps.reports.buildapp DEBUG 2016-05-19 12:43:40,551 Enabling 'error' middleware
galaxy.webapps.reports.buildapp DEBUG 2016-05-19 12:43:40,551 Enabling 'trans logger' middleware
galaxy.webapps.reports.buildapp DEBUG 2016-05-19 12:43:40,552 Enabling 'x-forwarded-host' middleware
Starting server in PID 14676.
Traceback (most recent call last):
  File "./scripts/paster.py", line 26, in <module>
    serve.run()
  File "/home/galaxy/immport-galaxy/lib/galaxy/util/pastescript/serve.py", line 1061, in run
    invoke(command, command_name, options, args[1:])
  File "/home/galaxy/immport-galaxy/lib/galaxy/util/pastescript/serve.py", line 1067, in invoke
    exit_code = runner.run(args)
  File "/home/galaxy/immport-galaxy/lib/galaxy/util/pastescript/serve.py", line 223, in run
    result = self.command()
  File "/home/galaxy/immport-galaxy/lib/galaxy/util/pastescript/serve.py", line 673, in command
    serve()
  File "/home/galaxy/immport-galaxy/lib/galaxy/util/pastescript/serve.py", line 650, in serve
    server(app)
  File "/home/galaxy/immport-galaxy/lib/galaxy/util/pastescript/loadwsgi.py", line 234, in server_wrapper
    **context.local_conf)
  File "/home/galaxy/immport-galaxy/lib/galaxy/util/pastescript/loadwsgi.py", line 94, in fix_call
    val = callable(*args, **kw)
  File "/home/galaxy/immport-galaxy/.venv/local/lib/python2.7/site-packages/paste/httpserver.py", line 1361, in server_runner
    serve(wsgi_app, **kwargs)
  File "/home/galaxy/immport-galaxy/.venv/local/lib/python2.7/site-packages/paste/httpserver.py", line 1310, in serve
    request_queue_size=request_queue_size)
  File "/home/galaxy/immport-galaxy/.venv/local/lib/python2.7/site-packages/paste/httpserver.py", line 1153, in __init__
    request_queue_size=request_queue_size)
  File "/home/galaxy/immport-galaxy/.venv/local/lib/python2.7/site-packages/paste/httpserver.py", line 1132, in __init__
    request_queue_size=request_queue_size)
  File "/home/galaxy/immport-galaxy/.venv/local/lib/python2.7/site-packages/paste/httpserver.py", line 345, in __init__
    HTTPServer.__init__(self, server_address, RequestHandlerClass)
  File "/usr/lib/python2.7/SocketServer.py", line 419, in __init__
    self.server_bind()
  File "/usr/lib/python2.7/BaseHTTPServer.py", line 108, in server_bind
    SocketServer.TCPServer.server_bind(self)
  File "/usr/lib/python2.7/SocketServer.py", line 430, in server_bind
    self.socket.bind(self.server_address)
  File "/usr/lib/python2.7/socket.py", line 224, in meth
    return getattr(self._sock,name)(*args)
socket.error: [Errno 99] Cannot assign requested address
Removing PID file reports_webapp.pid


Thanks,
Cris