Title: [Plugin: Background Manager] call to undefined function Last modified: August 20, 2016 --- # [Plugin: Background Manager] call to undefined function * Resolved [bdang](https://wordpress.org/support/users/bdang/) * (@bdang) * [14 years, 4 months ago](https://wordpress.org/support/topic/plugin-background-manager-call-to-undefined-function/) * A really great background image plugin. But I get this error. * context: trying to import images in with NextGen uploader. selecting to only show background images for home page. * Here’s my php error trace. * Fatal error: Call to undefined function Pf4wp\Menu\add_theme_page() in I:\xampp\ htdocs\meredith\wp-content\plugins\background-manager\vendor\pf4wp\lib\Pf4wp\ Menu\MenuEntry.php on line 255 Call Stack # Time Memory Function Location 1 0.0009 334096 {main}( ) ..\index.php:0 2 0.0015 337896 require( ‘I:\xampp\htdocs\ meredith\wp-blog-header.php’ ) ..\index.php:17 3 0.6173 22452496 require_once(‘ I:\xampp\htdocs\meredith\wp-includes\template-loader.php’ ) ..\wp-blog-header. php:16 4 0.6202 22461808 include( ‘I:\xampp\htdocs\meredith\wp-content\themes\ bdangtheme\page-about.php’ ) ..\template-loader.php:43 5 0.6476 22537376 get_footer()..\ page-about.php:39 6 0.6476 22537752 locate_template( ) ..\general-template.php: 63 7 0.6479 22537896 load_template( ) ..\theme.php:1091 8 0.6485 22546688 require_once(‘ I:\xampp\htdocs\meredith\wp-content\themes\bdangtheme\footer.php’ ) ..\theme. php:1115 9 0.6485 22546688 wp_footer( ) ..\footer.php:16 10 0.6485 22546744 do_action()..\ general-template.php:1587 11 0.6493 22548248 call_user_func_array ( ) ..\plugin. php:405 12 0.6493 22548264 wp_admin_bar_render( ) ..\plugin.php:405 13 0.6493 22548488 do_action_ref_array( ) ..\admin-bar.php:58 14 0.6620 22546048 call_user_func_array()..\ plugin.php:486 15 0.6621 22546064 Myatu\WordPress\BackgroundManager\Main->onAdminBarMenu()..\ plugin.php:486 16 0.6668 22810872 Pf4wp\Menu\StandardMenu->display( ) ..\Main. php:860 17 0.6668 22810872 Pf4wp\Menu\MenuEntry->display( ) ..\StandardMenu.php: 330 * [http://wordpress.org/extend/plugins/background-manager/](http://wordpress.org/extend/plugins/background-manager/) Viewing 5 replies - 1 through 5 (of 5 total) * Thread Starter [bdang](https://wordpress.org/support/users/bdang/) * (@bdang) * [14 years, 4 months ago](https://wordpress.org/support/topic/plugin-background-manager-call-to-undefined-function/#post-2530104) * [deleted] * Thread Starter [bdang](https://wordpress.org/support/users/bdang/) * (@bdang) * [14 years, 4 months ago](https://wordpress.org/support/topic/plugin-background-manager-call-to-undefined-function/#post-2530113) * to reproduce the error: * assumptions: only select home page to display background you have to be logged in as admin. go to any page other than ‘home’ to see the error. * Anonymous User 4048828 * (@anonymized-4048828) * [14 years, 4 months ago](https://wordpress.org/support/topic/plugin-background-manager-call-to-undefined-function/#post-2530272) * Hi! * Thank you for providing the error trace, which helped me locate the cause. * There might be a contributing factor of the theme you are using, however I have modified the affected code to use a different approach for what it is supposed to do. * I will release an update this weekend, which also includes a few more other improvements and new goodies. If you don’t wish to wait until then, you can temporarily disable the cause by editing the file `wp-content/plugins/background-manager/app/Myatu/ WordPress/BackgroundManager/Main.php` and comment line 561: * `add_action('admin_bar_menu', array($this, 'onAdminBarMenu'), 90);` * Thanks again! * Anonymous User 4048828 * (@anonymized-4048828) * [14 years, 4 months ago](https://wordpress.org/support/topic/plugin-background-manager-call-to-undefined-function/#post-2530341) * Hi! * Just to let you know that I’ve released version 1.0.6, which addresses the problem you were experiencing. * Let me know if this solves your issue, or if it persists. * Thread Starter [bdang](https://wordpress.org/support/users/bdang/) * (@bdang) * [14 years, 4 months ago](https://wordpress.org/support/topic/plugin-background-manager-call-to-undefined-function/#post-2530342) * thanks for the quick fix. unfortunately, I switched to the ‘better background’ plugin, and did a hack, so it would only display the background slideshow for the front page–it was the only functionality I needed. So I’m unable to give more feedback at this time. * I prefer your plugin, but I’ve already coded everything up, and the site works. Client is satisfied, so I’m not gonna switch plugins. I will most definitely you background manager for my next project, since it provides greater flexibility, and options than ‘better backgrounds’ Viewing 5 replies - 1 through 5 (of 5 total) The topic ‘[Plugin: Background Manager] call to undefined function’ is closed to new replies. * ![](https://s.w.org/plugins/geopattern-icon/background-manager_7c828e.svg) * [Background Manager](https://wordpress.org/plugins/background-manager/) * [Frequently Asked Questions](https://wordpress.org/plugins/background-manager/#faq) * [Support Threads](https://wordpress.org/support/plugin/background-manager/) * [Active Topics](https://wordpress.org/support/plugin/background-manager/active/) * [Unresolved Topics](https://wordpress.org/support/plugin/background-manager/unresolved/) * [Reviews](https://wordpress.org/support/plugin/background-manager/reviews/) * 5 replies * 2 participants * Last reply from: [bdang](https://wordpress.org/support/users/bdang/) * Last activity: [14 years, 4 months ago](https://wordpress.org/support/topic/plugin-background-manager-call-to-undefined-function/#post-2530342) * Status: resolved