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Samebug tips

  1. ,
    Expert tip

    A few things cause this exception:
    1) Check if you have all jars and if they're in the correct path.
    2) Your classpath might be broken, you can define it in the command line with java -cp yourClassPath or at your IDE if you're using one.

  2. ,

    you can change your scala version to 2.11.11

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java.lang.ClassNotFoundException: scala.reflect.internal.Trees	at java.net.URLClassLoader.findClass(URLClassLoader.java:381)	at java.lang.ClassLoader.loadClass(ClassLoader.java:424)	at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:331)	at java.lang.ClassLoader.loadClass(ClassLoader.java:357)	at java.lang.ClassLoader.defineClass1(Native Method)	at java.lang.ClassLoader.defineClass(ClassLoader.java:763)	at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142)	at java.net.URLClassLoader.defineClass(URLClassLoader.java:467)	at java.net.URLClassLoader.access$100(URLClassLoader.java:73)	at java.net.URLClassLoader$1.run(URLClassLoader.java:368)	at java.net.URLClassLoader$1.run(URLClassLoader.java:362)	at java.security.AccessController.doPrivileged(Native Method)	at java.net.URLClassLoader.findClass(URLClassLoader.java:361)	at java.lang.ClassLoader.loadClass(ClassLoader.java:424)	at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:331)	at java.lang.ClassLoader.loadClass(ClassLoader.java:357)	at java.lang.ClassLoader.defineClass1(Native Method)	at java.lang.ClassLoader.defineClass(ClassLoader.java:763)	at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142)	at java.net.URLClassLoader.defineClass(URLClassLoader.java:467)	at java.net.URLClassLoader.access$100(URLClassLoader.java:73)	at java.net.URLClassLoader$1.run(URLClassLoader.java:368)	at java.net.URLClassLoader$1.run(URLClassLoader.java:362)	at java.security.AccessController.doPrivileged(Native Method)	at java.net.URLClassLoader.findClass(URLClassLoader.java:361)	at java.lang.ClassLoader.loadClass(ClassLoader.java:424)	at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:331)	at java.lang.ClassLoader.loadClass(ClassLoader.java:357)	at org.fusesource.scalate.support.ScalaCompiler.generateSettings(ScalaCompiler.scala:123)	at org.fusesource.scalate.support.ScalaCompiler.(ScalaCompiler.scala:59)	at org.fusesource.scalate.support.ScalaCompiler$.create(ScalaCompiler.scala:42)	at org.fusesource.scalate.TemplateEngine.createCompiler(TemplateEngine.scala:231)	at org.fusesource.scalate.TemplateEngine.compiler$lzycompute(TemplateEngine.scala:221)	at org.fusesource.scalate.TemplateEngine.compiler(TemplateEngine.scala:221)	at org.fusesource.scalate.TemplateEngine.compileAndLoad(TemplateEngine.scala:757)	at org.fusesource.scalate.TemplateEngine.compileAndLoadEntry(TemplateEngine.scala:699)	at org.fusesource.scalate.TemplateEngine.liftedTree1$1(TemplateEngine.scala:419)	at org.fusesource.scalate.TemplateEngine.load(TemplateEngine.scala:413)	at org.fusesource.scalate.TemplateEngine.load(TemplateEngine.scala:471)	at org.fusesource.scalate.TemplateEngine.layout(TemplateEngine.scala:573)	at org.apache.zeppelin.cassandra.DisplaySystem$NoResultDisplay$.(DisplaySystem.scala:369)	at org.apache.zeppelin.cassandra.DisplaySystem$NoResultDisplay$.(DisplaySystem.scala)	at org.apache.zeppelin.cassandra.EnhancedSession.(EnhancedSession.scala:40)	at org.apache.zeppelin.cassandra.InterpreterLogic.(InterpreterLogic.scala:98)	at org.apache.zeppelin.cassandra.CassandraInterpreter.open(CassandraInterpreter.java:294)	at org.apache.zeppelin.interpreter.LazyOpenInterpreter.open(LazyOpenInterpreter.java:69)	at org.apache.zeppelin.interpreter.LazyOpenInterpreter.interpret(LazyOpenInterpreter.java:93)	at org.apache.zeppelin.interpreter.remote.RemoteInterpreterServer$InterpretJob.jobRun(RemoteInterpreterServer.java:390)	at org.apache.zeppelin.scheduler.Job.run(Job.java:176)	at org.apache.zeppelin.scheduler.ParallelScheduler$JobRunner.run(ParallelScheduler.java:162)	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)	at java.util.concurrent.FutureTask.run(FutureTask.java:266)	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)	at java.lang.Thread.run(Thread.java:745)