Title: post_upgrade error
Last modified: August 20, 2016

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# post_upgrade error

 *  Resolved [Rolf Allard van Hagen](https://wordpress.org/support/users/ravanh/)
 * (@ravanh)
 * [13 years, 4 months ago](https://wordpress.org/support/topic/post_upgrade-error/)
 * Hi Chouby,
 * Just noticed this in the error log after upgrading Polylang.
 *     ```
       PHP Warning:  call_user_func_array() expects parameter 1 to be a valid callback, class 'Polylang' does not have a method 'post_upgrade' in /var/www/default/wp-includes/plugin.php on line 173
       ```
   
 * Otherwise, all seems well so it’s just to let you know 😉
 * Cheers!
 * [http://wordpress.org/extend/plugins/polylang/](http://wordpress.org/extend/plugins/polylang/)

Viewing 2 replies - 1 through 2 (of 2 total)

 *  Plugin Author [Chouby](https://wordpress.org/support/users/chouby/)
 * (@chouby)
 * [13 years, 4 months ago](https://wordpress.org/support/topic/post_upgrade-error/#post-3402075)
 * I am happy that it works for you! This new version introduced at least two major
   issues (with post pages and menus) 🙁
    This notice is now removed in the current
   development version. Thank you!
 *  Thread Starter [Rolf Allard van Hagen](https://wordpress.org/support/users/ravanh/)
 * (@ravanh)
 * [13 years, 4 months ago](https://wordpress.org/support/topic/post_upgrade-error/#post-3402107)
 * > This new version introduced at least two major issues (with post pages and 
   > menus) 🙁
 * Ah… I’ll wait with upgrading then on all other sites till the next release. Hope
   you can get the issues fixed without too much hassle 😉
 * Let me know if you need some testing done or anything!

Viewing 2 replies - 1 through 2 (of 2 total)

The topic ‘post_upgrade error’ is closed to new replies.

 * ![](https://ps.w.org/polylang/assets/icon-256x256.png?rev=3433336)
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 * 2 replies
 * 2 participants
 * Last reply from: [Rolf Allard van Hagen](https://wordpress.org/support/users/ravanh/)
 * Last activity: [13 years, 4 months ago](https://wordpress.org/support/topic/post_upgrade-error/#post-3402107)
 * Status: resolved