Internal Server Error

[msibee]

if you open http://localhost:8080/

you will see this page

Internal Server Error

The server has either erred or is incapable of performing the requested operation.

Traceback (most recent call last):
File "C:\Google\google_appengine\lib\webapp2-2.5.2\webapp2.py", line 1535, in call
rv = self.handle_exception(request, response, e)
File "C:\Google\google_appengine\lib\webapp2-2.5.2\webapp2.py", line 1529, in call
rv = self.router.dispatch(request, response)
File "C:\Google\google_appengine\lib\webapp2-2.5.2\webapp2.py", line 1278, in default_dispatcher
return route.handler_adapter(request, response)
File "C:\Google\google_appengine\lib\webapp2-2.5.2\webapp2.py", line 1102, in call
return handler.dispatch()
File "C:\Google\google_appengine\lib\webapp2-2.5.2\webapp2.py", line 572, in dispatch
return self.handle_exception(e, self.app.debug)
File "F:\www.html5rocks.com\main.py", line 574, in handle_exception
super(ContentHandler, self).handle_exception(exception, debug_mode)
File "C:\Google\google_appengine\lib\webapp2-2.5.2\webapp2.py", line 570, in dispatch
return method(_args, *_kwargs)
File "F:\www.html5rocks.com\main.py", line 476, in get
limit=resource_limit, include_updates=include_updates)
File "F:\www.html5rocks.com\models.py", line 130, in get_all
results = self.include_updates(results)
File "F:\www.html5rocks.com\models.py", line 148, in include_updates
result = urlfetch.fetch(url)
File "C:\Google\google_appengine\google\appengine\api\urlfetch.py", line 271, in fetch
return rpc.get_result()
File "C:\Google\google_appengine\google\appengine\api\apiproxy_stub_map.py", line 613, in get_result
return self.__get_result_hook(self)
File "C:\Google\google_appengine\google\appengine\api\urlfetch.py", line 428, in _get_fetch_result
'Deadline exceeded while waiting for HTTP response from URL: ' + url)
DeadlineExceededError: Deadline exceeded while waiting for HTTP response from URL: http://updates.html5rocks.com/json

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can't use local server to build website . will have error.