spark运行时出现错误Caused by: java.lang.ClassNotFoundException: org.apache.spark.rdd.RDD

1 报错信息 Exception in thread "main" java.lang.NoClassDefFoundError: org/apache/spark/sql/SparkSession$ at Demo1_QuickStart$.main(Demo1_QuickStart.scala:7) at Demo1_QuickStart.main(Demo1_QuickStart.scala) Caused by: java.lang.ClassNotFoundException: org.apache.spark.sql.SparkSession$ at java.net.URLClassLoader.findClass(URLClassLoader.java:381) at java.lang.ClassLoader.loadClass(ClassLoader.java:424) at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:331) at java.lang.ClassLoader.loadClass(ClassLoader.java:357) ... 2 more Process finished with exit code 1 2 原因分析 <dependency> <groupId>org.apache.spark</groupId> <artifactId>spark-sql_2.10</artifactId> <version>${spark.version}</version> <!-- <scope>provided</scope> --> </dependency> 1 报错信息 Exception in thread "main" java.lang.NoCla