Failed to invoke the method sayHello in the service com.itheima.service.HelloService.

項目場景： 學Dubbo，運行測試provider和consumer 問題描述： 昨天晚上回寢室之前還正常運行，今天早上來開機後運行就報錯 com.alibaba.dubbo.rpc.RpcException: Failed to invoke the method sayHello in the service com.itheima.service.HelloService. Tried 3

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