Flink 1.7.2 start-scala-shell.sh 无法找到或加载主类 org.apache.flink.api.scala.FlinkShell [英] Flink 1.7.2 start-scala-shell.sh cannot find or load main class org.apache.flink.api.scala.FlinkShell

问题描述

Flink 版本:Apache Flink 1.7.2 仅二进制.斯卡拉:2.12

Flink version: Apache Flink 1.7.2 only binary. Scala:2.12

环境:

Scala version: 2.12.5   
JDK: 1.8.0_171 

我只是解压这个档案并运行

I simply untar this archive and run

bin/start-scala-shell.sh local 

我收到错误:

cannot find or load main class org.apache.flink.api.scala.FlinkShell. 

遗漏了什么?

推荐答案

Flink 构建于 Scala 2.12 版本 尚不支持 Flink Scala shell.所以如果你想使用 Flink Scala shell，你应该使用基于 Scala 2.11 构建的 Flink 二进制文件.来自 Flink 项目提交者 Chesnay Schepler 的消息:

Flink built on Scala 2.12 version Doesn't support Flink Scala shell yet. So you should use the Flink binary built based on Scala 2.11 if you want to use Flink Scala shell. A message from Chesnay Schepler, Committer of Flink project:

这是故意的.增加Scala版本基本上打破了scala-shell，我们还没有时间修复它.因此只有可用于 Scala 2.11.我同意错误消息可能是不过更好.

This is intended. Increasing the Scala version basically broke the scala-shell and we haven't had the time to fix it. It is thus only available with Scala 2.11. I agree that the error message could be better though.

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