"weka operator does not appear when it has installed weka extension"

putrilestarigputrilestarig Member Posts: 4 Contributor I
edited June 2019 in Help
please help me, i have installed the latest version of rapidminer, version 8. i also have installed weka extension. but i did not find weka operator. how to bring it up?


  • balaji_sundarambalaji_sundaram RapidMiner Certified Analyst, Member Posts: 8 Contributor II


    Step 1: Try Restarting the Application, if this does not work try step 2

    Step 2: Switch off the Anti Virus on your computer and Try reinstalling the extension again. 


    Make sure you have the updated JAVA Version. 

  • Telcontar120Telcontar120 Moderator, RapidMiner Certified Analyst, RapidMiner Certified Expert, Member Posts: 1,635 Unicorn

    Are you able to successfully install other extensions?

    Also, remember that the Weka extension isn't just one operator called "Weka" but rather it is a set of modeling extensions using algorithms from the open-source Weka project.  If you look in your extensions folder in your operator list, it actually looks like this:

    weka extension.PNG

    Brian T.
    Lindon Ventures 
    Data Science Consulting from Certified RapidMiner Experts
  • putrilestarigputrilestarig Member Posts: 4 Contributor I
    I've tried everything you suggest, but it still does not show up :(
  • putrilestarigputrilestarig Member Posts: 4 Contributor I
    I've got the installation notification succeeded, but weka extension like the picture you sent does not show up :(
  • sgenzersgenzer Administrator, Moderator, Employee, RapidMiner Certified Analyst, Community Manager, Member, University Professor, PM Moderator Posts: 2,959 Community Manager

    hello @putrilestarig - please send me your rapidminer-studio.log file (in your .RapidMiner folder) via private message and I will take a look.



  • putrilestarigputrilestarig Member Posts: 4 Contributor I

    already I send, please help :)

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