Why does spark-submit and spark-shell fail with “Failed to find Spark assembly JAR. You need to build Spark before running this program.”?

Question

I was trying to run spark-submit and I get \"Failed to find Spark assembly JAR. You need to build Spark before running this program.\" When I try to run spark-shell

Answer 1

Try running mvn -DskipTests clean package first to build Spark.