Astro 5.1.1: Cannot destructure property 'type' of 'lookupMap[collection]' as it is undefined

[shockch4rge]

Astro Info

Astro                    v5.1.1
Node                     v22.11.0
System                   macOS (arm64)
Package Manager          pnpm
Output                   static
Adapter                  none
Integrations             @astrojs/tailwind
                         @astrojs/mdx

If this issue only occurs in one browser, which browser is a problem?

No response

Describe the Bug

Collection references cannot be defined as an array in the content collection schema. Tested with the file loader; haven't seen results with the glob loader yet. Restart the server in the stackblitz and the error should show.

Submitted issue from my own findings and this reply here: #12616 (comment)

What's the expected result?

You should be able to define collection reference arrays, as seen in this example from the astro docs: https://docs.astro.build/en/guides/content-collections/#defining-collection-references

Link to Minimal Reproducible Example

https://stackblitz.com/edit/github-rzbnajjs?file=src%2Fcontent.config.ts

Participation

• I am willing to submit a pull request for this issue.

[ascorbic]

Hi. I can't reproduce it using your example. First it fails because it's referencing an invalid tag, but when I fix that it doesn't give an error. Can you check it and try again. Also ensure you're using 5.1.2 in your site.

[github-actions]

Hello @shockch4rge. Please provide a minimal reproduction using a GitHub repository or StackBlitz. Issues marked with needs repro will be closed if they have no activity within 3 days.

[shockch4rge]

Hi, I've updated to 5.1.2 and regenerated the .astro folder at the same time, and my issue seems to have gone away, but the 5.1.2 changelog doesn't seem to mention such a fix.

[ascorbic]

OK, thanks for the update. I'll close this.

[vorant94]

i also faced this issue recently with Astro v5.1.2 or v5.1.3 (i don't remember whether I upgraded before the issue happened or after), but now cannot reproduce it

if i recall correctly i got around it by first adding a new collection (the collection loader just return hardcoded array of entries), running the server and only then referencing this new collection from another one

so I assume it is something related to a race condition discussed in #12680 since both are about content collections and are tricky to catch

[ProfDoof]

I'm also having the exact same issue but with v5.1.5. I tried to repro it on stackblitz but couldn't get it to happen and I tried the workaround suggested in #12680 and it fixed it. Though I'm not sure if it's actually fixed as I haven't tried to generate anything from the content collection yet.

[PassionZale]

1. Define BlogCollection and ColumnCollection

import { glob } from "astro/loaders";
import { defineCollection, reference, z } from "astro:content";

const blog = defineCollection({
  loader: glob({ pattern: "**/[^_]*.md", base: "./src/data/blog" }),
  schema: ({ image }) =>
    z.object({
      author: z.string().default(SITE.author),
      pubDatetime: z.date(),
      modDatetime: z.date().optional().nullable(),
      title: z.string(),
      slug: z.string().optional().nullable(),
      featured: z.boolean().optional(),
      draft: z.boolean().optional(),
      tags: z.array(z.string()).default(["others"]),
      ogImage: image()
        .refine(img => img.width >= 1200 && img.height >= 630, {
          message: "OpenGraph image must be at least 1200 X 630 pixels!",
        })
        .or(z.string())
        .optional(),
      description: z.string(),
      canonicalURL: z.string().optional(),
      editPost: z
        .object({
          disabled: z.boolean().optional(),
          url: z.string().optional(),
          text: z.string().optional(),
          appendFilePath: z.boolean().optional(),
        })
        .optional(),
    }),
});

const columns = defineCollection({
  loader: glob({ pattern: "**/[^_]*.json", base: "./src/data/columns" }),
  schema: z.object({
    slug: z.string(),
    title: z.string(),
    description: z.string(),
    createDatetime: z.string().date(),
    status: z.string(),
  }),
});

export const collections = { blog, columns };

2. Run npm run dev

3. Run Control+C stop server

4. Add reference('column') to BlogCollection

import { glob } from "astro/loaders";
import { defineCollection, reference, z } from "astro:content";

const blog = defineCollection({
  loader: glob({ pattern: "**/[^_]*.md", base: "./src/data/blog" }),
  schema: ({ image }) =>
    z.object({
      author: z.string().default(SITE.author),
+     column: reference('column').optional().nullable(),
      pubDatetime: z.date(),
      modDatetime: z.date().optional().nullable(),
      title: z.string(),
      slug: z.string().optional().nullable(),
      featured: z.boolean().optional(),
      draft: z.boolean().optional(),
      tags: z.array(z.string()).default(["others"]),
      ogImage: image()
        .refine(img => img.width >= 1200 && img.height >= 630, {
          message: "OpenGraph image must be at least 1200 X 630 pixels!",
        })
        .or(z.string())
        .optional(),
      description: z.string(),
      canonicalURL: z.string().optional(),
      editPost: z
        .object({
          disabled: z.boolean().optional(),
          url: z.string().optional(),
          text: z.string().optional(),
          appendFilePath: z.boolean().optional(),
        })
        .optional(),
    }),
});

const columns = defineCollection({
  loader: glob({ pattern: "**/[^_]*.json", base: "./src/data/columns" }),
  schema: z.object({
    slug: z.string(),
    title: z.string(),
    description: z.string(),
    createDatetime: z.string().date(),
    status: z.string(),
  }),
});

export const collections = { blog, columns };

5. Run npm run dev get error:

6. Delete .astro folder, Run npm run dev again, can not faced this issue.