Title: Child theme errors Last modified: December 20, 2022 --- # Child theme errors * [seasoned](https://wordpress.org/support/users/seasoned/) * (@seasoned) * [3 years, 5 months ago](https://wordpress.org/support/topic/child-theme-errors-6/) * I have just installed this theme on a new website and when I create a child theme using the popular Child Theme Configurator plugin I see errors in the front and backend, which make it unusable. * I hope you can help solve this problem. Thank you. * This is the error: * Warning: Attempt to read property “source” on null in /**_removed-for-privacy_**/ wp-content/themes/zeever/inc/class/class-upgrader.php on line 187 * Warning: Cannot modify header information – headers already sent by (output started at /**_removed-for-privacy_**/wp-content/themes/zeever/inc/class/class-upgrader. php:187) in /**_removed-for-privacy_**/wp-admin/includes/misc.php on line 1416 * Warning: Cannot modify header information – headers already sent by (output started at /**_removed-for-privacy_**/wp-content/themes/zeever/inc/class/class-upgrader. php:187) in /**_removed-for-privacy_**/wp-includes/functions.php on line 6865 * Warning: Cannot modify header information – headers already sent by (output started at /**_removed-for-privacy_**/wp-content/themes/zeever/inc/class/class-upgrader. php:187) in /**_removed-for-privacy_**/wp-admin/admin-header.php on line 9 * Warning: Cannot modify header information – headers already sent by (output started at /**_removed-for-privacy_**/wp-content/themes/zeever/inc/class/class-upgrader. php:187) in /**_removed-for-privacy_**/wp-includes/option.php on line 1138 * Warning: Cannot modify header information – headers already sent by (output started at /**_removed-for-privacy_**/wp-content/themes/zeever/inc/class/class-upgrader. php:187) in /**_removed-for-privacy_**/wp-includes/option.php Viewing 7 replies - 1 through 7 (of 7 total) * [Yoga](https://wordpress.org/support/users/yogajegstudio/) * (@yogajegstudio) * [3 years, 4 months ago](https://wordpress.org/support/topic/child-theme-errors-6/#post-16308383) * Hi [@seasoned](https://wordpress.org/support/users/seasoned/) Could you tell me what are the settings you used when creating the child theme using Child Theme Configurator plugin?I need to replicate it on my side.Also is there any change you have made in both the parent theme and child theme? * Thread Starter [seasoned](https://wordpress.org/support/users/seasoned/) * (@seasoned) * [3 years, 4 months ago](https://wordpress.org/support/topic/child-theme-errors-6/#post-16309970) * Hello [@yogajegstudio](https://wordpress.org/support/users/yogajegstudio/). * Thanks for getting back to me. * **_Could you tell me what are the settings you used when creating the child theme using Child Theme Configurator plugin?_** * I followed the steps and used exactly the same settings shown in this video [https://www.youtube.com/watch?v=Wpc6FAsi7xI](https://www.youtube.com/watch?v=Wpc6FAsi7xI) * **_Also is there any change you have made in both the parent theme and child theme._** * No changes at all. I installed WP, immediately installed your theme, then immediately tried to create the child theme. * Because of the errors I was forced to abandon creating the child theme and have continued my work without one. * [Agung Bayu](https://wordpress.org/support/users/agungjegstudio/) * (@agungjegstudio) * [3 years, 4 months ago](https://wordpress.org/support/topic/child-theme-errors-6/#post-16312381) * hi [@seasoned](https://wordpress.org/support/users/seasoned/) i follow exactly what on those videos, but i cannot replicate your issue. can you give us more information about version of gutenverse being used, version of themes you currently use, and version of PHP you currently use? and where are you get those error? * you can find those information on your admin panel gutenverse > system status. * and also please send your child themes file to us so we can replicate your issue on our side. Thank you * Thread Starter [seasoned](https://wordpress.org/support/users/seasoned/) * (@seasoned) * [3 years, 4 months ago](https://wordpress.org/support/topic/child-theme-errors-6/#post-16314813) * WordPress 6.1.1 * Gutenverse 1.7.2 * Zeever Theme 1.0.9 * PHP 8.0.26 * [Agung Bayu](https://wordpress.org/support/users/agungjegstudio/) * (@agungjegstudio) * [3 years, 4 months ago](https://wordpress.org/support/topic/child-theme-errors-6/#post-16315623) * we cannot find the issue with your setting, btw if you don’t want to send us the child themes, you can use this one that i generate from the plugin also. we don’t have any problem when using this child themes. [https://www.dropbox.com/s/b23cgic71khl89q/zeever-child.zip?dl=0](https://www.dropbox.com/s/b23cgic71khl89q/zeever-child.zip?dl=0) if you still have issue, please let us know. * Thread Starter [seasoned](https://wordpress.org/support/users/seasoned/) * (@seasoned) * [3 years, 4 months ago](https://wordpress.org/support/topic/child-theme-errors-6/#post-16316673) * Thank you for looking at this issue. * Because the error happened just minutes after installing a fresh WordPress site I decided to wipe the whole site and start again from scratch installing WP and the Zeever theme again, so I do not have the child theme files anymore. * As we were unable to find a solution to the issue I will not mark this as resolved. * I expect I will soon get another opportunity to create a child theme for Zeever, and when I do I will come back and report how it goes. * Cheers. * [Agung Bayu](https://wordpress.org/support/users/agungjegstudio/) * (@agungjegstudio) * [3 years, 4 months ago](https://wordpress.org/support/topic/child-theme-errors-6/#post-16319601) * ok [@seasoned](https://wordpress.org/support/users/seasoned/), just let us know if you still having the issue. * Thank you Viewing 7 replies - 1 through 7 (of 7 total) The topic ‘Child theme errors’ is closed to new replies. * ![](https://i0.wp.com/themes.svn.wordpress.org/zeever/1.2.1/screenshot.jpg) * Zeever * [Support Threads](https://wordpress.org/support/theme/zeever/) * [Active Topics](https://wordpress.org/support/theme/zeever/active/) * [Unresolved Topics](https://wordpress.org/support/theme/zeever/unresolved/) * [Reviews](https://wordpress.org/support/theme/zeever/reviews/) * 7 replies * 3 participants * Last reply from: [Agung Bayu](https://wordpress.org/support/users/agungjegstudio/) * Last activity: [3 years, 4 months ago](https://wordpress.org/support/topic/child-theme-errors-6/#post-16319601) * Status: not resolved