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"Error when running WVToolRapidMinerExample.java"

behrangsabehrangsa Member Posts: 7 Contributor II
edited May 23 in Help
Hi all,

When I run WVToolRapidMinerExample.java it fails and shows this error message:

Exception in thread "main" com.rapidminer.operator.OperatorCreationException: No operator description object given for 'WVTool'
        at com.rapidminer.tools.OperatorService.createOperator(OperatorService.java:531)

I have installed the WVTool plugin and I set the rapidminer.home property correctly but I checked operators.xml and no description object is defined for WVTool. Any ideas what do I have to do in order to run this sample program?

Thanks in advance,
Behrang
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Answers

  • IngoRMIngoRM Administrator, Moderator, Employee, RapidMiner Certified Analyst, RapidMiner Certified Expert, Community Manager, RMResearcher, Member, University Professor Posts: 1,682  RM Founder
    Hi,

    the WVTool plugin was renamed to "Text Plugin" about two years ago. At the same time, we decided to split the WVTool Operator into an operator "TextInput" together with small and specialized operators for the different tasks. Please have a look into the samples delivered with the new "Text" plugin and you will get the idea what have changed here. In short: rename "WVTool" to "TextInput" and add appropriate inner operators for the desired tasks like stemming etc.

    Cheers,
    Ingo
    RapidMiner Wisdom 2020
    February 11th and 12th 2020 in Boston, MA, USA

  • behrangsabehrangsa Member Posts: 7 Contributor II
    Thanks. The Java example in the downloadable package is still using WVTool as the operator name though. It would be better to update it to use TextInput cause for users new to RapidMiner it is a source of confusion.
  • IngoRMIngoRM Administrator, Moderator, Employee, RapidMiner Certified Analyst, RapidMiner Certified Expert, Community Manager, RMResearcher, Member, University Professor Posts: 1,682  RM Founder
    Hi,

    thanks for pointing this out. We will update this.

    Cheers,
    Ingo
    RapidMiner Wisdom 2020
    February 11th and 12th 2020 in Boston, MA, USA

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