Flink运行报错：java.lang.NoClassDefFoundError: org/apache/flink/streaming/api/functions/source/SourceFunction

本地IDE运行Flink代码，报错如下：

java.lang.NoClassDefFoundError: org/apache/flink/streaming/api/functions/source/SourceFunction
	at java.lang.Class.getDeclaredMethods0(Native Method)
	at java.lang.Class.privateGetDeclaredMethods(Class.java:2701)
	at java.lang.Class.privateGetMethodRecursive(Class.java:3048)
	at java.lang.Class.getMethod0(Class.java:3018)
	at java.lang.Class.getMethod(Class.java:1784)
	at sun.launcher.LauncherHelper.validateMainClass(LauncherHelper.java:544)
	at sun.launcher.LauncherHelper.checkAndLoadMain(LauncherHelper.java:526)
Caused by: java.lang.ClassNotFoundException: org.apache.flink.streaming.api.functions.source.SourceFunction
	at java.net.URLClassLoader.findClass(URLClassLoader.java:381)
	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)
	... 7 more
Error: A JNI error has occurred, please check your installation and try again
Exception in thread "main" 

问题解决：问题出在pom文件中，其中引入的Flink包的scope为provided，将这个作用范围删掉，重新编译项目，运行，问题解决。