I'm making my own theme and I just got this message while trying to activate my theme: "The active theme is broken. Reverting to the default theme." Live preview works, but when I select this theme it reverts back to a new theme. I have index.php and my style.css files set up as I was using this theme fine before. I've disabled all plugins and even tried a fresh copy of wordpress.
Is there any way to troubleshoot this issue and see what in my theme is breaking?
You need to add some compulsary code in top of the style.css file
just copy and paste this commented code you can change theme name as per your requirement.
https://developer.wordpress.org/themes/basics/main-stylesheet-style-css/#example
/*
Theme Name: Twenty Seventeen
Theme URI: https://wordpress.org/themes/twentyseventeen/
Author: the WordPress team
Author URI: https://wordpress.org/
Description: Twenty Seventeen
Version: 1.0
License: GNU General Public License v2 or later
License URI: http://www.gnu.org/licenses/gpl-2.0.html
Text Domain: twentyseventeen
Tags: one-column, two-columns
*/
style.cssis not optional, and some of the components of it are required, without seeing the top of yourstyle.cssit's not possible to tell – Tom J Nowell♦ Jul 30 '18 at 4:16