崩溃了,用GoogleAppEngineLauncher调程序,间歇出现这样错误,搜了一下,无果,求助啊....

"/Applications/GoogleAppEngineLauncher.app/Contents/Resources/GoogleAppEngine-default.bundle/Contents/Resources/google_appengine/google/appengine/tools/dev_appserver_main.py", line 480, in main
static_caching=static_caching)
File "/Applications/GoogleAppEngineLauncher.app/Contents/Resources/GoogleAppEngine-default.bundle/Contents/Resources/google_appengine/google/appengine/tools/dev_appserver.py", line 3881, in CreateServer
server = HTTPServerWithScheduler((serve_address, port), handler_class)
File "/Applications/GoogleAppEngineLauncher.app/Contents/Resources/GoogleAppEngine-default.bundle/Contents/Resources/google_appengine/google/appengine/tools/dev_appserver.py", line 3901, in __init__
request_handler_class)
File "/System/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/SocketServer.py", line 400, in __init__
self.server_bind()
File "/System/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/BaseHTTPServer.py", line 108, in server_bind
SocketServer.TCPServer.server_bind(self)
File "/System/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/SocketServer.py", line 411, in server_bind
self.socket.bind(self.server_address)
File "<string>", line 1, in bind
socket.error: [Errno 49] Can't assign requested address

说是Can't assign requested address...不能获取127.0.0.1?

和这个错误差不多间隔出现的还有....
socket.gaierror: [Errno 8] nodename nor servname provided, or not known
出现的位置都相同.

那个前辈遇到过啊.
指点一下