Spark1.6 java7 scala+java.lang.UnsupportedClassVersionError

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Spark1.6 +java7 +scala

报错类型：
Exception in thread “main” java.lang.UnsupportedClassVersionError: StatDemo : Unsupported major.minor version 52.0

Spark submit提交

Exception in thread "main" java.lang.UnsupportedClassVersionError: StatDemo : Unsupported major.minor version 52.0    at java.lang.ClassLoader.defineClass1(Native Method)    at java.lang.ClassLoader.defineClass(ClassLoader.java:800)    at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142)    at java.net.URLClassLoader.defineClass(URLClassLoader.java:449)    at java.net.URLClassLoader.access$100(URLClassLoader.java:71)    at java.net.URLClassLoader$1.run(URLClassLoader.java:361)    at java.net.URLClassLoader$1.run(URLClassLoader.java:355)    at java.security.AccessController.doPrivileged(Native Method)    at java.net.URLClassLoader.findClass(URLClassLoader.java:354)    at java.lang.ClassLoader.loadClass(ClassLoader.java:425)    at java.lang.ClassLoader.loadClass(ClassLoader.java:358)    at java.lang.Class.forName0(Native Method)    at java.lang.Class.forName(Class.java:270)    at org.apache.spark.util.Utils$.classForName(Utils.scala:175)    at org.apache.spark.deploy.SparkSubmit$.org$apache$spark$deploy$SparkSubmit$$runMain(SparkSubmit.scala:689)    at org.apache.spark.deploy.SparkSubmit$.doRunMain$1(SparkSubmit.scala:181)    at org.apache.spark.deploy.SparkSubmit$.submit(SparkSubmit.scala:206)    at org.apache.spark.deploy.SparkSubmit$.main(SparkSubmit.scala:121)    at org.apache.spark.deploy.SparkSubmit.main(SparkSubmit.scala)

解决方案：
把scala2.12 换成scala2.10

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