Google Pubsub Subscriber startAsync NosuchmethodError

Question

我的订户定义如下：

  class PubSubMessageReceiver extends MessageReceiver {
    override def receiveMessage(message: PubsubMessage, consumer: AckReplyConsumer): Unit = {
     // .. business logic
      //acknowledge message
      consumer.ack()
    }
  }

val subscriber = Subscriber.defaultBuilder(subscriptionName, new PubSubMessageReceiver).build()

但是，在调用subscriber.startAsync时，我收到以下错误：

java.lang.NoSuchMethodError: com.google.api.core.AbstractApiService$InnerService.startAsync()Lcom/google/common/util/concurrent/Service;
    at com.google.api.core.AbstractApiService.startAsync(AbstractApiService.java:121)
    at com.google.cloud.pubsub.spi.v1.Subscriber.startAsync(Subscriber.java:218)

Answer 1

我的运行时环境安装了旧版本的Guava。