Build issues with Gatsby and Sanity blog starter project

I can see you're running into build issues with the Gatsby blog starter, though your error message got cut off! Without seeing the complete error, I'll walk you through the most common build problems people encounter with Gatsby + Sanity projects.

Common Build Issues & Solutions:

1. Configuration Problems

First, verify your gatsby-config.js has the correct settings for the gatsby-source-sanity plugin:

{
  resolve: 'gatsby-source-sanity',
  options: {
    projectId: 'your-project-id',
    dataset: 'production',
    // Add a token if using overlayDrafts or private datasets
    token: process.env.SANITY_READ_TOKEN,
    watchMode: true, // for development
  }
}

2. Missing Read Token

If your dataset is private or you're using overlayDrafts: true for draft previews, you need a read token. Create one in your project's API settings at sanity.io/manage, then add it as an environment variable. Without this token, the build will fail when trying to fetch content.

3. GraphQL API Deployment (Optional)

While not strictly required for gatsby-source-sanity to work, deploying the GraphQL API can help with schema introspection. The plugin actually fetches content using Sanity's export endpoint, but having the GraphQL schema deployed helps Gatsby understand your content structure better.

If you want to deploy it, run from your Sanity studio folder:

sanity graphql deploy

4. Node Version Mismatch

Modern Sanity and Gatsby versions require Node.js 20+. Check your Node version with node -v and upgrade if needed.

5. Plugin Installation

Make sure you've installed the source plugin:

npm install gatsby-source-sanity

What Would Really Help:

If you could share the full error message you're seeing, the community can give you a much more targeted solution! Look for output after running gatsby build or gatsby develop. Common error patterns include:

• Authentication/token errors
• "Cannot query field..." GraphQL errors
• Module not found errors
• Network/connection timeouts

The exact error message will point us to the specific issue. Also helpful: which starter template are you using (blog, portfolio, etc.) and whether you've made any modifications to the default configuration?