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  1. ,
    Expert tip

    This might be an issue with the file location in the Spark submit command. Try it with

    spark-submit --master spark://master:7077 \ {file location}
  2. ,
    Expert tip

    Check if you've set a name in Application -> Run. If you didn't, the generated XML is gonna have missing information and then this exception will be thrown.

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java.lang.ClassNotFoundException: 	at java.lang.Class.forName0(Native Method)	at java.lang.Class.forName(	at org.unitime.timetable.solver.jgroups.OnlineStudentSchedulingContainer.createInstance(	at org.unitime.timetable.solver.jgroups.OnlineStudentSchedulingContainer.createSolver(	at org.unitime.timetable.solver.jgroups.LocalSolverServer$Updater.checkForNewServers(	at org.unitime.timetable.solver.jgroups.LocalSolverServer$