Error list

WARNING  2012-12-02 17:59:40,648 simple_search_stub.py:950] Could not read search indexes from /tmp/dev_appserver.searchindexes
Traceback (most recent call last):
  File "google_appengine/dev_appserver.py", line 171, in <module>
    run_file(__file__, globals())
  File "google_appengine/dev_appserver.py", line 167, in run_file
    execfile(script_path, globals_)
  File "/home/abhishek/google_appengine/google/appengine/tools/dev_appserver_main.py", line 747, in <module>
    sys.exit(main(sys.argv))
  File "/home/abhishek/google_appengine/google/appengine/tools/dev_appserver_main.py", line 710, in main
    interactive_console=interactive_console)
  File "/home/abhishek/google_appengine/google/appengine/tools/dev_appserver.py", line 3937, in CreateServer
    server = HTTPServerWithScheduler((serve_address, port), handler_class)
  File "/home/abhishek/google_appengine/google/appengine/tools/dev_appserver.py", line 3968, in __init__
    request_handler_class)
  File "/usr/lib/python2.7/SocketServer.py", line 408, 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 419, 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.gaierror: [Errno -5] No address associated with hostname