> For the complete documentation index, see [llms.txt](https://docs.planetstyles.net/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.planetstyles.net/troubleshooting/missing-style.css-stylesheet.md).

# "missing style.css stylesheet"

### Problem

The following error is shown on install:

> The package could not be installed. The theme is missing the style.css stylesheet

### Cause

This is a Wordpress error message. Our themes our only compatible with phpBB forum software, they aren't comptible with Wordpress.