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

Moha
Moha New Altair Community Member
edited November 5 in Community Q&A
  • 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)
Tagged:

Answers

  • varunm1
    varunm1 New Altair Community Member
    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.


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