我使用GCloud文档中的示例代码片段作为订阅者接收msg。我的pubsubgcloud jar版本是0.19.0-alpha2017-07-12 16:52:25,219 [grpc-default-worker-ELGio.netty.util.concurrent.DefaultPromise - An exception was thrown by io.grpc.netty.NettyClientHandler$3.operationComplete()
pubsub = PubSubOptions.defaultInstance().service()) { Subscription subscription = pubsub.getSubscription(subscriptionName);}抛出异常
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