py4j.Py4JException: An exception was raised by the Python Proxy.

GitHub | bartdag | 6 years ago
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    Root Cause Analysis

    1. py4j.Py4JException

      An exception was raised by the Python Proxy.

      at py4j.Protocol.getReturnValue()
    2. Py4J
      PythonProxyHandler.invoke
      1. py4j.Protocol.getReturnValue(Protocol.java:393)
      2. py4j.reflection.PythonProxyHandler.invoke(PythonProxyHandler.java:100)
      2 frames
    3. Unknown
      $Proxy0.foo
      1. $Proxy0.foo(Unknown Source)
      1 frame
    4. py4j.examples
      InterfaceExample.test
      1. py4j.examples.InterfaceExample.test(InterfaceExample.java:8)
      1 frame
    5. Java RT
      NativeMethodAccessorImpl.invoke0
      1. sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
      1 frame