Android集成环信后 发送消息失败报错404

acklistener: xNQcX-18-9a41d
06-28 04:56:47.979 7050-19609/cn.party.chatdemo D/acklistener:  found returned global server msg id : 212770136786993756
06-28 04:56:47.983 7050-19609/cn.party.chatdemo D/acklistener: received server ack for msg:xNQcX-18-9a41d
06-28 04:56:47.983 7050-24115/cn.party.chatdemo D/sender: exit from wait
06-28 04:56:48.003 7050-19596/cn.party.chatdemo D/SMACK:FileDebugger:  RCV from182.92.20.117:443(1384396036): {"from":"babyle6","to":"babyle3","bodies":[{"type":"txt","msg":"nihao"}],"ext":{}}Conference room does not exist