Flink本地模式报错:Exception in thread main java.lang.NoClassDefFoundError_exception in thread "main" java.lang.noclassdeffou

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1.报错：

Exception in thread "main" java.lang.NoClassDefFoundError: org/apache/flink/api/scala/typeutils/CaseClassTypeInfo
	at java.lang.ClassLoader.defineClass1(Native Method)
	at java.lang.ClassLoader.defineClass(ClassLoader.java:763)
	at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142)
	at java.net.URLClassLoader.defineClass(URLClassLoader.java:468)
	at java.net.URLClassLoader.access$100(URLClassLoader.java:74)
	at java.net.URLClassLoader$1.run(URLClassLoader.java:369)
	at java.net.URLClassLoader$1.run(URLClassLoader.java:363)
	at java.security.AccessController.doPrivileged(Native Method)
	at java.net.URLClassLoader.findClass(URLClassLoader.java:362)
	at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
	at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:349)
	at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
	at com.hairuo.flink.streaming.chapter1.AverageSensorReadings.main(AverageSensorReadings.scala)
Caused by: java.lang.ClassNotFoundException: org.apache.flink.api.scala.typeutils.CaseClassTypeInfo
	at java.net.URLClassLoader.findClass(URLClassLoader.java:382)
	at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
	at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:349)
	at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
	... 13 more

Process finished with exit code 1

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2.错误分析：主要看这一句

Exception in thread “main” java.lang.NoClassDefFoundError: org/apache/flink/api/scala/typeutils/CaseClassTypeInfo

大概意思是找不到类

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3.解决办法：

修改pom文件中的依赖项

        <dependency>
            <groupId>org.apache.flink</groupId>
            <artifactId>flink-scala_${scala.binary.version}</artifactId>
            <version>${flink.version}</version>
            <scope>provided</scope>
        </dependency>
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去掉scope即可

        <dependency>
            <groupId>org.apache.flink</groupId>
            <artifactId>flink-scala_${scala.binary.version}</artifactId>
            <version>${flink.version}</version>
<!--            <scope>provided</scope>-->
        </dependency>
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4.成功运行Flink本地模式