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help me , always when i trying run operator i got this message ??

MohaMoha Member Posts: 7 Contributor II
  • Exception: java.lang.NullPointerException
  • Message: null
  • Stack trace:
  • com.rapidminer.operator.ports.metadata.MetaDataFactory.createMetaDataforIOObject(MetaDataFactory.java:88)
  • com.rapidminer.operator.ports.metadata.MetaData.forIOObject(MetaData.java:230)
  • com.rapidminer.gui.processeditor.results.SingleResultOverview.(SingleResultOverview.java:153)
  • com.rapidminer.gui.processeditor.results.ProcessExecutionResultOverview.(ProcessExecutionResultOverview.java:210)
  • com.rapidminer.gui.processeditor.results.ResultOverview.addResults(ResultOverview.java:128)
  • com.rapidminer.gui.processeditor.results.DockableResultDisplay$2.run(DockableResultDisplay.java:217)
  • com.rapidminer.gui.tools.ProgressThread$3.run(ProgressThread.java:561)
  • java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
  • java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
  • java.lang.Thread.run(Thread.java:748)

Answers

  • varunm1varunm1 Moderator, Member Posts: 1,207   Unicorn
    Hello @Moha

    Can you provide your XML code? You can get that from View --> Show Panel --> XML. Please copy and paste that code here so that we can understand what you are trying to do. If possible you can also provide your dataset for making things much easier.


    Regards,
    Varun
    https://www.varunmandalapu.com/

    Be Safe. Follow precautions and Maintain Social Distancing

    sgenzer
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