[Flink] java.lang.NoClassDefFoundError: org/apache/flink/api/common...

在 IntelliJ IDEA 中右键 Scala 文件直接运行时报了如下错误（通过 *sbt* 命令是可以正常打包的）：

> "C:\Program Files\Java\jdk1.8.0_111\bin\java.exe" ...
> Exception in thread "main" java.lang.NoClassDefFoundError: org/apache/flink/api/common/serialization/DeserializationSchema
>   at octopus.ba.RabbitMQStreamWordCount.main(RabbitMQStreamWordCount.scala)
> Caused by: java.lang.ClassNotFoundException: org.apache.flink.api.common.serialization.DeserializationSchema
>   at java.net.URLClassLoader.findClass(URLClassLoader.java:381)
>   at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
>   at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:331)
>   at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
>   ... 1 more

**解决办法：**

在 *Run/Debug Configurations* 中勾选 *Include dependencies with "Provided" scope*，保存之后再运行就好了。

![](/wp-content/uploads/2019/09/run-sbt-scala-in-intellij-idea-configurations.png)

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