# Page Not Found

The URL `development-guidelines/building-angular-project` does not exist.

You might be looking for one of these pages:
- [Language Files & Localization](https://docs.umbraco.com/umbraco-cms/extending/language-files.md)
- [Creating a Multilingual Site](https://docs.umbraco.com/umbraco-cms/tutorials/multilanguage-setup.md)
- [Routing](https://docs.umbraco.com/umbraco-cms/implementation/default-routing.md)
- [Inversion of Control / Dependency injection](https://docs.umbraco.com/umbraco-cms/reference/using-ioc.md)
- [Listing a Package on the Umbraco Marketplace](https://docs.umbraco.com/umbraco-cms/extending/packages/listing-on-marketplace.md)

## How to find the correct page

1. **Browse the full index**: [/sitemap.md](https://docs.umbraco.com/sitemap.md) - Complete documentation index
2. **View the full content**: [/llms-full.txt](https://docs.umbraco.com/llms-full.txt) - Full content export

## Tips for requesting documentation

- For markdown responses, append `.md` to URLs (e.g., `/umbraco-cms/extending/language-files.md`)
- Use `Accept: text/markdown` header for content negotiation