Where to fix deprecated structure syntax after Sanity upgrade?

The "Structure: Node ID required" error you're seeing after upgrading Sanity is related to the Structure Builder (formerly Desk Tool). This happens because all nodes within your desk structure need an ID assigned to them.

What's happening

Normally, IDs are assigned automatically based on the title of items in your structure. However, some items require a manually assigned ID. This is especially common with document list items, where the ID refers to a specific document ID.

How to fix it

You need to explicitly set an ID by calling the .id() method in your structure configuration. Here's an example:

S.documentListItem()
  .id('website-featured-articles')  // Add this line
  .schemaType('article-set')
  .title('Site config')

Where to look

Check your structure configuration file (typically structure/index.ts or similar in your Sanity config). Look for any S.documentListItem(), S.listItem(), or similar structure builder methods that might be missing the .id() call.

If you recently upgraded from Studio v2 to v3 (or v3 to v4), this is a common issue because structure requirements became more strict. The official help article on this error has more details.

Quick tip

If you're not sure which item is causing the issue, check your browser console or terminal - it should give you more context about where in your structure the error is occurring. The error message typically points to the specific structure node that needs an ID.