Hi built a spark application which run alright on local mode but when I run on hortonworks sandbox it throws back the error message at the bottom - I included the dependencies in my build.sbt file. - imported typesafe on my application => import com.typesafe.config._ package retail import org.apache.spark.SparkContext, org.apache.spark.SparkConf import com.typesafe.config._ import org.apache.hadoop.fs._ object AvgRevenueDaily { def main (args: Array[String]){ val appConf = ConfigFactory.load() val conf = new SparkConf(). setAppName("Average Revenue - Daily"). setMaster(appConf.getConfig(args(2)).getString("deploymentMaster")) val sc = new SparkContext(conf) val inputPath = args(0) val outputPath = args(1) Exception in thread "main" java.lang.NoClassDefFoundError: com/typesafe/config/ConfigFactory at retail.AvgRevenueDaily$.main(AvgRevenueDaily.scala:11) at retail.AvgRevenueDaily.main(AvgRevenueDaily.scala) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:498) at org.apache.spark.deploy.SparkSubmit$.org$apache$spark$deploy$SparkSubmit$runMain(SparkSubmit.scala:782) at org.apache.spark.deploy.SparkSubmit$.doRunMain$1(SparkSubmit.scala:180) at org.apache.spark.deploy.SparkSubmit$.submit(SparkSubmit.scala:205) at org.apache.spark.deploy.SparkSubmit$.main(SparkSubmit.scala:119) at org.apache.spark.deploy.SparkSubmit.main(SparkSubmit.scala) Caused by: java.lang.ClassNotFoundException: com.typesafe.config.ConfigFactory at java.net.URLClassLoader.findClass(URLClassLoader.java:381) at java.lang.ClassLoader.loadClass(ClassLoader.java:424) at java.lang.ClassLoader.loadClass(ClassLoader.java:357) ... 11 more ... View more