Problem/Motivation

Getting the following error on Drupal 11 sites:

- cv.jquery.validate.js Uncaught TypeError: $.isFunction is not a function

Issue fork clientside_validation-3593783

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    jmoreira created an issue. See original summary.

    srees’s picture

    srees commented
    Priority: Normal » Major

    I am experiencing this as well (for a couple months now) - specifically when trying to edit views - in today's case, a view with an exposed form -- but all I'm attempting to do is modify the allowed options for VBO. I can't save my views with this issue, so I'm bumping up the priority as it is preventing administrative features from functioning.

    To reproduce, enable group, VBO, and group_action. Attempt to add VBO options to the people view and adjust what options are displayed (attempting to add the group membership actions).

    However, this has been much more widely an issue than my specific case.

    srees’s picture

    srees commented
    Priority: Major » Normal

    Aaaaand nevermind (for me).

    I resolved this by going to:
    Administration>Configuration>User Interface>Clientside Validation JQuery Settings
    Enabled 'Use JS from CDN'
    and set the field to 'https://cdn.jsdelivr.net/npm/jquery-validation@1.21.0/dist/' as suggested in the help for that field.

    All better for me.

    @jmoreira maybe check those settings, or update the jquery-validation library copy you may have installed directly.

    tstaylor7’s picture

    tstaylor7 commented

    The jQuery Deprecated Functions module solved this for me.

    The underlying issue seems to be related to the upgrade to jQuery 4:

    https://www.drupal.org/project/drupal/issues/3534576
    https://www.drupal.org/project/drupal/issues/3411839