[resolved] Warning Message everywhere in the backend: call_user_func_array() expects... (2 posts)

  1. wplover2k
    Posted 2 years ago #

    Hello breakling,

    first I would thank you for your great work. At this moment I have a problem with your Plugin WP-PIWIK on my website. After installing and activating of your plugin, WordPress shows under the toolbar in the backend the follow message:

    Warning: call_user_func_array() expects parameter 1 to be a valid callback, cannot access private method wp_piwik::onPostStatusTransition() in /homepages/27/d526774006/htdocs/pbc/wp-includes/plugin.php on line 470

    This Warning Message will shown everywhere at the same position in the backend.
    At first, I searched for a few websites and was landed on:


    At the end of this post I found the follow notice:

    PD: This error could be also related to plugins authors that declared a function on a previous version of their plugin and then on a newest version they delete it but forget to delete the action related.

    Therefore I write this post in your forum. Hopefully you can help me.
    By the way: if it is helpful I send you a private link to my website.

    Thanks for your help and please excuse my bad english.

    With kind regards


  2. braekling
    Plugin Author

    Posted 2 years ago #

    This bug is already fixed and will be released with very soon.

    Until the release, you can disable annotations to avoid the warning. Or disable WP_DEBUG (if it is a live system, you should disable debugging always).

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