Title: Error Message
Last modified: August 30, 2016

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# Error Message

 *  [flowermist](https://wordpress.org/support/users/flowermist/)
 * (@flowermist)
 * [10 years, 11 months ago](https://wordpress.org/support/topic/error-message-473/)
 * I created a child theme for byblos, but when I activated it I got this error 
   message.
 * expects parameter 1 to be a valid callback, function ‘mh_byblos_child_style’ 
   not found or invalid function name in /home/flowermi/public_html/nightview/wp-
   includes/plugin.php on line 503
 * How do I correct this? The link to the development site is:
 * [http://www.nightview.vocaleseok.com](http://www.nightview.vocaleseok.com)
 * Thanks!
 * Misti

 The topic ‘Error Message’ is closed to new replies.

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 * 0 replies
 * 1 participant
 * Last reply from: [flowermist](https://wordpress.org/support/users/flowermist/)
 * Last activity: [10 years, 11 months ago](https://wordpress.org/support/topic/error-message-473/)
 * Status: not resolved