While I am installing wordpress theme, it's showing
"Installation Failed: The package could not be installed - The theme is missing the style.css stylesheet"
I have installed with various methods, but same issue. (Eg: Cpanel, WP-Dashboard).
There are many things when you got error like style.css missing
One: first of all into your WordPress root directory open wp-content-themes->your theme name->header.php. The check the style.css properly call or not?
Two: If first step is ok then open your style.css and add your theme name into comment sections something like this:
/*
Theme Name: Your Theme Name
Theme URI: https://themeisle.com/themes/your-them-name/
Author: ThemeIsle
Author URI: https://themeisle.com
Description: Hestia is a modern WordPress theme for professionals. It fits creative business, small businesses (restaurants, wedding planners, sport/medical shops), startups, corporate businesses, online agencies and firms, portfolios, ecommerce (WooCommerce), and freelancers. It has a multipurpose one-page design, widgetized footer, blog/news page and a clean look, is compatible with: Flat Parallax Slider, Photo Gallery, Travel Map and Elementor Page Builder . The theme is responsive, WPML, Retina ready, SEO friendly, and uses Material Kit for design.
*/
Three: rezip your theme and install it again see then its working fine or not ? for more check here
Thanks