hi, I don't quite well understand what do I do wrong.\
can you help me please?
ERROR [2017-06-29 08:21:53,695] ({qtp1521110008-116}
InterpreterFactory.java[createRepl]:246) - exception checking server
classloader driver
java.lang.ClassNotFoundException: org.apache.zeppelin.spark.SparkInterpreter
at java.net.URLClassLoader$1.run(URLClassLoader.java:366)
at java.net.URLClassLoader$1.run(URLClassLoader.java:355)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:354)
at java.lang.ClassLoader.loadClass(ClassLoader.java:425)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:308)
at java.lang.ClassLoader.loadClass(ClassLoader.java:358)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:191)
at
org.apache.zeppelin.interpreter.InterpreterFactory.createRepl(InterpreterFactory.java:241)
at
org.apache.zeppelin.interpreter.InterpreterFactory.createInterpretersForNote(InterpreterFactory.java:206)
at
org.apache.zeppelin.interpreter.InterpreterFactory.createOrGetInterpreterList(InterpreterFactory.java:332)
at
org.apache.zeppelin.interpreter.InterpreterFactory.getInterpreter(InterpreterFactory.java:395)
at org.apache.zeppelin.notebook.Note.run(Note.java:600)
at
org.apache.zeppelin.socket.NotebookServer.persistAndExecuteSingleParagraph(NotebookServer.java:1641)
at
org.apache.zeppelin.socket.NotebookServer.runAllParagraphs(NotebookServer.java:1588)
at
org.apache.zeppelin.socket.NotebookServer.onMessage(NotebookServer.java:268)
at
org.apache.zeppelin.socket.NotebookSocket.onWebSocketText(NotebookSocket.java:59)
at
org.eclipse.jetty.websocket.common.events.JettyListenerEventDriver.onTextMessage(JettyListenerEventDriver.java:128)
at
org.eclipse.jetty.websocket.common.message.SimpleTextMessage.messageComplete(SimpleTextMessage.java:69)
at
org.eclipse.jetty.websocket.common.events.AbstractEventDriver.appendMessage(AbstractEventDriver.java:65)
at
org.eclipse.jetty.websocket.common.events.JettyListenerEventDriver.onTextFrame(JettyListenerEventDriver.java:122)
at
org.eclipse.jetty.websocket.common.events.AbstractEventDriver.incomingFrame(AbstractEventDriver.java:161)
at
org.eclipse.jetty.websocket.common.WebSocketSession.incomingFrame(WebSocketSession.java:309)
at
org.eclipse.jetty.websocket.common.extensions.ExtensionStack.incomingFrame(ExtensionStack.java:214)
at org.eclipse.jetty.websocket.common.Parser.notifyFrame(Parser.java:220)
at org.eclipse.jetty.websocket.common.Parser.parse(Parser.java:258)
at
org.eclipse.jetty.websocket.common.io.AbstractWebSocketConnection.readParse(AbstractWebSocketConnection.java:632)
at
org.eclipse.jetty.websocket.common.io.AbstractWebSocketConnection.onFillable(AbstractWebSocketConnection.java:480)
at
org.eclipse.jetty.io.AbstractConnection$2.run(AbstractConnection.java:544)
at
org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:635)
at
org.eclipse.jetty.util.thread.QueuedThreadPool$3.run(QueuedThreadPool.java:555)
at java.lang.Thread.run(Thread.java:745)
