Github user fanlu commented on the issue: https://github.com/apache/zeppelin/pull/1465 I use git apply this patch but the problem is still there ERROR [2016-09-28 23:23:53,892] ({qtp659748578-108} NotebookServer.java[onMessage]:261) - Can't handle message org.apache.zeppelin.interpreter.InterpreterException: org.apache.thrift.TApplicationException: completion failed: unknown result at org.apache.zeppelin.interpreter.remote.RemoteInterpreter.completion(RemoteInterpreter.java:453) at org.apache.zeppelin.interpreter.LazyOpenInterpreter.completion(LazyOpenInterpreter.java:122) at org.apache.zeppelin.notebook.Paragraph.completion(Paragraph.java:242) at org.apache.zeppelin.notebook.Note.completion(Note.java:520) at org.apache.zeppelin.socket.NotebookServer.completion(NotebookServer.java:797) at org.apache.zeppelin.socket.NotebookServer.onMessage(NotebookServer.java:217) at org.apache.zeppelin.socket.NotebookSocket.onWebSocketText(NotebookSocket.java:56) 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$3.run(QueuedThreadPool.java:555) at java.lang.Thread.run(Thread.java:745) Caused by: org.apache.thrift.TApplicationException: completion failed: unknown result at org.apache.zeppelin.interpreter.thrift.RemoteInterpreterService$Client.recv_completion(RemoteInterpreterService.java:362) at org.apache.zeppelin.interpreter.thrift.RemoteInterpreterService$Client.completion(RemoteInterpreterService.java:342) at org.apache.zeppelin.interpreter.remote.RemoteInterpreter.completion(RemoteInterpreter.java:449) ... 21 more
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