Title: Walker_Nav_Menu error
Last modified: August 19, 2016

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# Walker_Nav_Menu error

 *  Resolved [kierzniak](https://wordpress.org/support/users/kierzniak/)
 * (@kierzniak)
 * [15 years, 2 months ago](https://wordpress.org/support/topic/walker_nav_menu-error/)
 * When i try to overwrite walker argument in
 * `wp_nav_menu()`
 * function wordpress display error
 * `Undefined property: stdClass::$menu_item_parent`
 * I thought that is the problem with class which extend Walker_Nav_Menu, but when
   I try to do something like that:
 * `wp_nav_menu( array('walker' => new Walker_Nav_Menu() ) );`
 * I have this same error.

Viewing 1 replies (of 1 total)

 *  Thread Starter [kierzniak](https://wordpress.org/support/users/kierzniak/)
 * (@kierzniak)
 * [15 years, 2 months ago](https://wordpress.org/support/topic/walker_nav_menu-error/#post-1982130)
 * I must have defined any menu in Menu section. I haven’t have, so I have errors.

Viewing 1 replies (of 1 total)

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

## Tags

 * [Walker](https://wordpress.org/support/topic-tag/walker/)
 * [Walker_Nav_Menu](https://wordpress.org/support/topic-tag/walker_nav_menu/)
 * [wp_nav_menu()](https://wordpress.org/support/topic-tag/wp_nav_menu/)

 * 1 reply
 * 1 participant
 * Last reply from: [kierzniak](https://wordpress.org/support/users/kierzniak/)
 * Last activity: [15 years, 2 months ago](https://wordpress.org/support/topic/walker_nav_menu-error/#post-1982130)
 * Status: resolved

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