Exception in thread "main" java.lang.NoClassDefFoundError: org/apache/spark/sql/SparkSession

Exception in thread "main" java.lang.NoClassDefFoundError: org/apache/spark/sql/SparkSession$
  at spark.day1.AA$.main(no2.scala:11)
  at spark.day1.AA.main(no2.scala)
Caused by: java.lang.ClassNotFoundException: org.apache.spark.sql.SparkSession$
  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)

<dependency>
  <groupId>org.apache.spark</groupId>
  <artifactId>spark-sql_2.11</artifactId>
  <version>2.4.4</version>
  <scope>provided</scope>
</dependency>