Could not find or load main class org.apache.spark.deploy.yarn.ExecutorLauncher

Hi,
i am seeing below error while spark-submit

Container: container_e137_1527045214830_4673_02_000001 on ip-172-31-38-183.ec2.internal_45454

LogType:stderr
Log Upload Time:Wed Jun 20 07:50:25 +0000 2018
LogLength:87
Log Contents:
Error: Could not find or load main class org.apache.spark.deploy.yarn.ExecutorLauncher
End of LogType:stderr
LogType:stdout
Log Upload Time:Wed Jun 20 07:50:25 +0000 2018
LogLength:0
Log Contents:
End of LogType:stdout

below my spark-submit command :

/usr/spark2.0.2/bin/spark-submit --master yarn
–deploy-mode client
–queue default
–conf spark.hadoop.yarn.timeline-service.enabled=false
/home/tarunkumar_13516/bigformal.py hdfs:///user/tarunkumar_13516/mydata.txt

if you can help me in this,