io.grpc.StatusRuntimeException: UNAVAILABLE: io exception
at io.grpc.stub.ClientCalls.toStatusRuntimeException(ClientCalls.java:244) ~[grpc-stub-1.29.0.jar:1.29.0]
at io.grpc.stub.ClientCalls.getUnchecked(ClientCalls.java:225) ~[grpc-stub-1.29.0.jar:1.29.0]
at io.grpc.stub.ClientCalls.blockingUnaryCall(ClientCalls.java:142) ~[grpc-stub-1.29.0.jar:1.29.0]
at io.github.wechaty.grpc.PuppetGrpc$PuppetBlockingStub.start(PuppetGrpc.java:2744) ~[grpc-0.16.1.jar:?]
at io.github.wechaty.grpc.GrpcPuppet.start(GrpcPuppet.kt:78) [wechaty-puppet-hostie-0.1.5-20200719.133816-1.jar:?]
at io.github.wechaty.Wechaty.start(Wechaty.kt:52) [wechaty-0.1.5-20200719.133942-1.jar:?]
at io.github.wechaty.DingDongBot.main(DingDongBot.java:50) [classes/:?]
Caused by: io.grpc.netty.shaded.io.netty.channel.AbstractChannel$AnnotatedConnectException: Connection timed out: no further information: /120.76.139.69:8788
Caused by: java.net.ConnectException: Connection timed out: no further information
at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method) ~[?:1.8.0_102]
at sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:717) ~[?:1.8.0_102]
at io.grpc.netty.shaded.io.netty.channel.socket.nio.NioSocketChannel.doFinishConnect(NioSocketChannel.java:330) ~[grpc-netty-shaded-1.29.0.jar:1.29.0]
at io.grpc.netty.shaded.io.netty.channel.nio.AbstractNioChannel$AbstractNioUnsafe.finishConnect(AbstractNioChannel.java:334) ~[grpc-netty-shaded-1.29.0.jar:1.29.0]
at io.grpc.netty.shaded.io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:702) ~[grpc-netty-shaded-1.29.0.jar:1.29.0]
at io.grpc.netty.shaded.io.netty.channel.nio.NioEventLoop.processSelectedKeysOptimized(NioEventLoop.java:650) ~[grpc-netty-shaded-1.29.0.jar:1.29.0]
at io.grpc.netty.shaded.io.netty.channel.nio.NioEventLoop.processSelectedKeys(NioEventLoop.java:576) ~[grpc-netty-shaded-1.29.0.jar:1.29.0]
at io.grpc.netty.shaded.io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:493) ~[grpc-netty-shaded-1.29.0.jar:1.29.0]
at io.grpc.netty.shaded.io.netty.util.concurrent.SingleThreadEventExecutor$4.run(SingleThreadEventExecutor.java:989) ~[grpc-netty-shaded-1.29.0.jar:1.29.0]
at io.grpc.netty.shaded.io.netty.util.internal.ThreadExecutorMap$2.run(ThreadExecutorMap.java:74) ~[grpc-netty-shaded-1.29.0.jar:1.29.0]
at io.grpc.netty.shaded.io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30) ~[grpc-netty-shaded-1.29.0.jar:1.29.0]
at java.lang.Thread.run(Thread.java:745) ~[?:1.8.0_102]
16:36:32.242 [main]DEBUG io.github.wechaty.eventEmitter.EventEmitter-[43] - this eventName:START has no listener