Error: No settings context found in hydrogen-sanity-demo setup

The "Error: No settings context found" happens because you haven't created a settings document in your Sanity dataset yet. This is actually a common issue when first setting up the hydrogen-sanity-demo!

The hydrogen-sanity-demo wraps the app in a <SettingsProvider> component that expects to fetch a settings document from your Sanity dataset. This document contains shared values like site title, navigation, and other global settings. When SettingsContext.server.jsx queries for *[_type == 'settings'] and finds nothing, it throws this error.

To fix this:

1. Make sure you've set up the pre-configured Sanity Studio that comes with the demo
2. Open your Sanity Studio (usually at http://localhost:3333 or similar)
3. Create a new settings document - there should be a "Settings" document type in your schema
4. Fill in the required fields (site title, etc.)
5. Publish the document

Once the settings document exists in your dataset, the error should disappear and your Hydrogen storefront will load properly.

The hydrogen-sanity-demo discussion on Sanity's community confirms this is the solution, and the maintainers noted they should make this error message more descriptive to help future users!

As a side note: if you're deploying this to production, the easiest path is via Docker (the demo team deploys to fly.io). Vercel requires some tweaking since Hydrogen uses Express, which is a bit of an anti-pattern for Vercel's serverless architecture.