error happens on aws but not locally

gistfile1.scala

/*
Exception in thread "main" java.lang.ClassCastException: breeze.linalg.Transpose cannot be cast to breeze.linalg.ImmutableNumericOps
	at ch.ethz.dalab.dissolve.optimization.SolverUtils$.objectiveFunction(SolverUtils.scala:52)
	at ch.ethz.dalab.dissolve.optimization.DBCFWSolverTuned.ch$ethz$dalab$dissolve$optimization$DBCFWSolverTuned$$evaluateModel$1(DBCFWSolverTuned.scala:237)
	at ch.ethz.dalab.dissolve.optimization.DBCFWSolverTuned$$anonfun$optimize$1.apply$mcZI$sp(DBCFWSolverTuned.scala:375)
	at ch.ethz.dalab.dissolve.optimization.DBCFWSolverTuned$$anonfun$optimize$1.apply(DBCFWSolverTuned.scala:359)
	at ch.ethz.dalab.dissolve.optimization.DBCFWSolverTuned$$anonfun$optimize$1.apply(DBCFWSolverTuned.scala:359)
	at scala.collection.immutable.Stream.takeWhile(Stream.scala:803)
	at ch.ethz.dalab.dissolve.optimization.DBCFWSolverTuned.optimize(DBCFWSolverTuned.scala:358)
	at ch.ethz.dalab.dissolve.classification.StructSVMWithDBCFW.trainModel(StructSVMWithDBCFW.scala:24)
	at ch.ethz.dalab.dissolve.examples.neighbourhood.runMSRC$.runStuff(runMSRC.scala:760)
	at ch.ethz.dalab.dissolve.examples.neighbourhood.runMSRC$.main(runMSRC.scala:67)
	at ch.ethz.dalab.dissolve.examples.neighbourhood.runMSRC.main(runMSRC.scala)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:606)
	at org.apache.spark.deploy.SparkSubmit$.launch(SparkSubmit.scala:358)
	at org.apache.spark.deploy.SparkSubmit$.main(SparkSubmit.scala:75)
	at org.apache.spark.deploy.SparkSubmit.main(SparkSubmit.scala)

*/


  def objectiveFunction(w: Vector[Double],
                        b_alpha: Double,
                        lambda: Double): Double = {
    // Return the value of f(alpha)
    0.5 * lambda * (w.t * w) - b_alpha //<------ This is line 52. 
  }