sbt.ForkMain$ForkError: java.lang.NoClassDefFoundError: Could not initialize class org.apache.spark.internal.config.package$

sbt.ForkMain$ForkError: sbt.ForkMain$ForkError: java.lang.NoClassDefFoundError: Could not initialize class org.apache.spark.internal.config.package$
	at org.apache.spark.SparkConf.validateSettings(SparkConf.scala:546)
	at org.apache.spark.SparkContext.<init>(SparkContext.scala:374)
	at org.apache.spark.streaming.flume.FlumePollingStreamSuite.beforeAll(FlumePollingStreamSuite.scala:53)
	at org.scalatest.BeforeAndAfterAll$class.beforeAll(BeforeAndAfterAll.scala:187)
	at org.apache.spark.SparkFunSuite.beforeAll(SparkFunSuite.scala:31)
	at org.scalatest.BeforeAndAfterAll$class.run(BeforeAndAfterAll.scala:253)
	at org.apache.spark.SparkFunSuite.run(SparkFunSuite.scala:31)
	at org.scalatest.tools.Framework.org$scalatest$tools$Framework$$runSuite(Framework.scala:357)
	at org.scalatest.tools.Framework$ScalaTestTask.execute(Framework.scala:502)
	at sbt.ForkMain$Run$2.call(ForkMain.java:296)
	at sbt.ForkMain$Run$2.call(ForkMain.java:286)
	at java.util.concurrent.FutureTask.run(FutureTask.java:266)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
	at java.lang.Thread.run(Thread.java:745)