Google cloud dataflow 未找到包com.google.cloud.dataflow.sdk

从Maven执行时，我的Dataflow Java代码停止编译/运行：

[ERROR] symbol:   class Pipeline
[ERROR] location: package com.google.cloud.dataflow.sdk
[ERROR] ... package com.google.cloud.dataflow.sdk.io does not exist
[ERROR] ... package com.google.cloud.dataflow.sdk.options does not exist
[ERROR] ... package com.google.cloud.dataflow.sdk.transforms does not exist

---

您的pom.xml可能包含一行，例如：

<dependency>
  <groupId>com.google.cloud.dataflow</groupId>
  <artifactId>google-cloud-dataflow-java-sdk-all</artifactId>
  <version>[1.6.0, 2.0.0)</version>
</dependency>

com.google.cloud.dataflow

更新Java代码。这不仅仅是更改包名。您的运行程序名称将发生更改，DoFns还需要@ProcessElement注释以及其他更改

<dependency>
  <groupId>com.google.cloud.dataflow</groupId>
  <artifactId>google-cloud-dataflow-java-sdk-all</artifactId>
  <version>[1.6.0, 1.9.9)</version>
</dependency>