# Fatal error after installing the Sage theme with version 11.

**URL:** https://discourse.roots.io/t/fatal-error-after-installing-the-sage-theme-with-version-11/29366
**Category:** sage
**Tags:** windows, acorn
**Created:** 2025-03-05T17:35:51Z
**Posts:** 8
**Showing post:** 2 of 8

## Post 2 by @ben — 2025-03-05T17:40:25Z

There’s some bugs in Acorn with Windows right now. You’ll need to use a WSL-based dev environment for the moment.

Work in progress to get things fixed: [🩹 Use `DIRECTORY_SEPARATOR` for fallback storage path by Log1x · Pull Request #441 · roots/acorn · GitHub](https://github.com/roots/acorn/pull/441) — this isn’t working 100% just yet

Make sure to read [https://discourse.roots.io/t/how-to-best-ask-questions-on-this-forum/24582](https://discourse.roots.io/t/how-to-best-ask-questions-on-this-forum/24582) and put in some more effort with your posts (more details, proper formatting, versions of everything)

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