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Error when I try to run “Remove Unused Vertex Groups” Addon

Forum Archive › Error when I try to run “Remove Unused Vertex Groups” Addon

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  • June 15, 2026 at 12:18 pm #21620
    John Frey
    Participant

      I get the following error message when I run the Remove Unused Vertex Group addon.

      Python: TypeError: VGROUP_OT_remove_unused.__init__{} takes 1 positional argument but 2 were given

       I was trying to clean up Vertex Groups on Luna_Boots.  What am I doing wrong?

      June 15, 2026 at 8:16 pm #100514
      Wayne Dixon
      Participant

        Hi John,
        It is most likely that the script no longer works with the version of Blender you are using 🙁
        (I am not the maintainer of that script)

        The easiest way to do this manually would be to lock the groups you want to keep (you can select the bones in the viewport and hit K to bring up the weight paint locking menu)
        Lock the ones you want to keep, and remove unlocked groups.
        And don’t forget to unlock them again.

        I’ll see what I can do to get this implemented into Blender itself.
        Seems doable.  (it just won’t help you right now)

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