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