"text visualizer"

startx25startx25 Member Posts: 7 Contributor II
edited June 2019 in Help
Hi ,

i get this error when i try to use text analyser :

10:43:52 AM WARNING: Error creating renderer: java.lang.ClassCastException: com.rapidminer.operator.visualization.TextVisualizer cannot be cast to com.rapidminer.operator.visualization.TextVisualizer

ps : for info, only a "exa" port of a processdocument output is connectect to textvisualizer.

my version is Rapidminer version 5 3 008


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    MariusHelfMariusHelf RapidMiner Certified Expert, Member Posts: 1,869 Unicorn
    Which extension did you install to get the TextVisualizer?
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    startx25startx25 Member Posts: 7 Contributor II
    HI First, thank you for you help,

    i have installed "information extraction"

    in "manager extensions" i can see it's version 1.0.0.

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    fnlfnl Member Posts: 4 Contributor I
    Sorry for replying to such an old post, but I have the exact same problem.

    The TextVisualizer from the IE plugin gives me this error when I try to run the first sample (1_Read-Tokenize-Visualize).

    Is the plugin broken/no longer supported? There seem to have been no updates over the last two years.
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    fnlfnl Member Posts: 4 Contributor I
    OK, solved the issue myself: The plugin on the marketplace is NOT up-to-date (if any RapidMiner folks are on this forum, pay attention... :)).

    So to get the IE plugin to work correctly, you need to download the latest jar here:


    Uninstall the Marketplace version, if you have it installed.
    Then, place the jar (rapidminer-Information-Extraction-1.0.2.jar) in your $RAPIDMINER_HOMER/lib/plugins directory.

    To get the examples I mentioned above, do:

    svn checkout https://svn.code.sf.net/p/ieplugin4rm/code/informationextractionplugin_Vega/trunk/informationExtraction_Vega/samples/
    mv samples ~/.RapidMiner/repositories/MyRepo/

    Finally, the IE plugin works! (Well, the examples, at least - still have to see if this is generally true...)

    Restart RapidMiner.
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    Marco_BoeckMarco_Boeck Administrator, Moderator, Employee, Member, University Professor Posts: 1,996 RM Engineering

    this is not an extension developed by us so we can't do much about the marketplace version.
    Thanks for sharing how to get it to work though!

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