Traceback (most recent call last):
File "c:\vnstudio\lib\site-packages\vnpy\trader\ui\widget.py", line 571, in connect
self.main_engine.connect(setting, self.gateway_name)
File "c:\vnstudio\lib\site-packages\vnpy\trader\engine.py", line 166, in connect
gateway.connect(setting)
File "c:\vnstudio\lib\site-packages\vnpy\gateway\rpc\rpc_gateway.py", line 43, in connect
self.query_all()
File "c:\vnstudio\lib\site-packages\vnpy\gateway\rpc\rpc_gateway.py", line 70, in query_all
contracts = self.client.get_all_contracts()
File "c:\vnstudio\lib\site-packages\vnpy\rpc__init__.py", line 246, in dorpc
raise RemoteException(msg)
vnpy.rpc.RemoteException: Timeout of 30000ms reached for ['get_all_contracts', (), {}]