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Warning: Attempt to read property “query_vars” on null

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  • June 23, 2025 at 2:22 pm #669077

    Raido
    Participant

    Hi!

    I just set up the theme on a fresh site.

    When I open the “Shop Page Widget area”, I see following error for each attribute filter preview:
    Warning: Attempt to read property "query_vars" on null in wp-content/plugins/woocommerce/includes-wc-query.php on line 891.
    Warning: Attempt to read property "query_vars" on null in wp-content/plugins/woocommerce/includes-wc-query.php on line 903.

    When I click the specific filter open in the widget section, everything seems to work fine.

    • This topic was modified 1 month, 3 weeks ago by Raido.
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    June 23, 2025 at 6:12 pm #669188

    Hung Pham
    Keymaster

    Hi Raido,

    Thanks for reaching to us.

    You should deactivate all plugins (except Required Plugins) and then reactivate them one by one. This makes it very easy to isolate the plugin causing problems.

    Regards,
    Hung PD

    June 23, 2025 at 11:10 pm #669234

    Raido
    Participant

    Hi!

    I don’t have any extra modules.

    Reason for this message to show is that I have this line:
    ini_set('display_errors', 1);

    If this is set to 0, then it does not appear, yet it’s masking the issue. Wonder if it’s now because of the widget being legacy or it’s a WooCommerce issue?

    June 24, 2025 at 1:55 pm #669360

    Hung Pham
    Keymaster

    Hi Raido,

    Thanks for sharing details.

    It’s actually a warning message, won’t affect to your site. I kindly recommend you to turn it off.

    Regards,
    Hung PD

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