[Upgrade to v6] Deprecation message about Astro.generator while not using A | Astro Lounge | Page 1

full ferryBOT Mar 21, 2026, 7:08 PM

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Hi @charred fiber. I'm kapa.ai, your friendly support bot. I will try to answer your question by searching through the knowledge base. :wave:

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Looking at your code, you're not explicitly using Astro.generator — so the warning is likely coming from somewhere else in your project, not directly from the code you've shared.

Here's what the Astro v6 docs say about this deprecation:

Using Astro.site or Astro.generator within getStaticPaths() will now log a deprecation warning.

[Deprecated: Astro in getStaticPaths]

A few things to check:

Your Page layout or other imported components — The warning could be triggered by a getStaticPaths() function in another .astro file (e.g., layouts/Page.astro or any component it imports) that uses Astro.generator.
Other dynamic route pages — If you have multiple [slug].astro or similar files, check all of them for any Astro.generator or Astro.site usage inside their getStaticPaths() functions.
Shared utilities — Even though your getPages() function doesn't use it, check if any other utility or service file called within a getStaticPaths() scope references Astro.generator.

What to do when you find it

Remove Astro.generator entirely, and replace any Astro.site usage with import.meta.env.SITE:

---
export async function getStaticPaths() {
  // Remove: console.log(Astro.generator);
  // Replace: return getPages(Astro.site);
  return getPages(import.meta.env.SITE);
}
---

[Deprecated: Astro in getStaticPaths]

The deprecation warning should point you to the file causing the issue — check your terminal output carefully for a file path accompanying the warning message.

Note: you can ask me a follow up question by @ mentioning me again :speech_balloon:

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@charred fiber Kapa.ai is still learning and improving, please let me know how I did by reacting below.

charred fiber Mar 21, 2026, 7:18 PM

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@full ferry I have zero references to Astro.generator or Astro.site in my project

full ferryBOT Mar 21, 2026, 7:18 PM

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Let me check the knowledge base for you again. One moment! :books:

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That's a tricky situation. Based on the knowledge sources available, I can confirm what the deprecation covers, but I'm limited in what I can definitively say about why you're seeing it without explicit usage.

What the docs state is that in Astro 6.0, accessing any property on the Astro object inside getStaticPaths() will throw a specific error, while Astro.site and Astro.generator specifically log a deprecation warning. [Deprecated: Astro in getStaticPaths]

The knowledge sources don't provide enough detail to explain why the warning would appear without any explicit Astro.generator or Astro.site reference in your code. A few possibilities worth investigating that are consistent with what the docs describe:

A dependency or integration you're using may internally reference Astro.generator inside a getStaticPaths() context.
The warning message itself — does it include a file path or stack trace? That would be the most reliable way to pinpoint the exact source.

I'd recommend checking the full terminal output for any file path accompanying the deprecation warning, and also looking at any Astro integrations or plugins in your project that might be generating routes. If the source remains unclear, filing an issue on Astro's GitHub would be the best next step, as the knowledge sources don't cover this specific scenario.

Note: you can ask me a follow up question by @ mentioning me again :speech_balloon:

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@charred fiber Kapa.ai is still learning and improving, please let me know how I did by reacting below.

charred fiber Mar 21, 2026, 7:19 PM

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Well it's also telling me 20:19:37 [ERROR] [content] (0 , vite_ssr_import_0.createCollectionToGlobResultMap) is not a function @full ferry

full ferryBOT Mar 21, 2026, 7:19 PM

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Let me check the knowledge base for you again. One moment! :books:

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That error is a strong clue. createCollectionToGlobResultMap is an internal function from the legacy content collections API. Seeing this error means your project still has legacy content collections code that is no longer supported in Astro v6.

Astro v6.0 removes the legacy Content Collections API entirely — including internal helpers like createCollectionToGlobResultMap that were part of the old system. [Removed: legacy content collections]

What to do

You need to migrate your content collections to the new Content Layer API. Here are the most common things to fix:

Move your config file from src/content/config.ts → src/content.config.ts
Add a loader to each collection definition:

import { defineCollection } from 'astro:content';
import { z } from 'astro/zod';
import { glob } from 'astro/loaders';

const blog = defineCollection({
  loader: glob({ pattern: '**/[^_]*.{md,mdx}', base: "./src/data/blog" }),
  schema: z.object({
    title: z.string(),
    description: z.string(),
    pubDate: z.coerce.date(),
  }),
});

Remove type: 'content' or type: 'data' from collection definitions — these no longer exist.
Replace entry.render() with the standalone render() function from astro:content.
Replace slug with id in your params and queries.

[Removed: legacy content collections]

Temporary workaround

If you need more time to migrate, you can enable the backwards compatibility flag as a temporary measure:

// astro.config.mjs
export default defineConfig({
  legacy: {
    collectionsBackwardsCompat: true,
  },
});

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This preserves some legacy v4 behaviors like entry.slug, entry.render(), and type: 'content'/type: 'data'. However, this is only a temporary helper — you should migrate as soon as possible. [Legacy: content collections backwards compatibility]

This also likely explains the `Astro.generator` deprecation warning you were seeing earlier — it may have been a side effect of the legacy collections system being invoked internally.

Note: you can ask me a follow up question by @ mentioning me again :speech_balloon:

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@charred fiber Kapa.ai is still learning and improving, please let me know how I did by reacting below.

charred fiber Mar 21, 2026, 7:30 PM

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I removed all collections since I'm not using them, forgot to remove them. Now it tells me " Rollup failed to resolve import "virtual astro app"" on build tho @full ferry

full ferryBOT Mar 21, 2026, 7:30 PM

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Let me check the knowledge base for you again. One moment! :books:

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The knowledge sources I have available don't contain information about the "Rollup failed to resolve import 'virtual<:astro:...>app'" error specifically.

This error appears to be a Vite/Rollup bundling issue rather than a content collections issue, so it's likely unrelated to the changes you just made. Unfortunately, I can't provide a confident answer based on the available knowledge sources.

I'd suggest:

Checking the full error stack trace in your terminal — it usually points to the file triggering the import.
Searching Astro's GitHub issues at github.com/withastro/astro/issues for this specific error message, as it may be a known bug.
Asking in Astro's Discord community at astro.build/chat where maintainers and community members may have encountered this.

#[Upgrade to v6] Deprecation message about Astro.generator while not using A

What to do when you find it

The deprecation warning should point you to the file causing the issue — check your terminal output carefully for a file path accompanying the warning message.

Note: you can ask me a follow up question by @ mentioning me again :speech_balloon:

Note: you can ask me a follow up question by @ mentioning me again :speech_balloon:

What to do

Temporary workaround

This also likely explains the `Astro.generator` deprecation warning you were seeing earlier — it may have been a side effect of the legacy collections system being invoked internally.

Note: you can ask me a follow up question by @ mentioning me again :speech_balloon:

I'm sorry I can't be more specific — the knowledge sources simply don't cover this particular error.

Note: you can ask me a follow up question by @ mentioning me again :speech_balloon:

#[Upgrade to v6] Deprecation message about Astro.generator while not using A

What to do when you find it

The deprecation warning should point you to the file causing the issue — check your terminal output carefully for a file path accompanying the warning message.

Note: you can ask me a follow up question by @ mentioning me again :speech_balloon:

Note: you can ask me a follow up question by @ mentioning me again :speech_balloon:

What to do

Temporary workaround

This also likely explains the Astro.generator deprecation warning you were seeing earlier — it may have been a side effect of the legacy collections system being invoked internally.

Note: you can ask me a follow up question by @ mentioning me again :speech_balloon:

I'm sorry I can't be more specific — the knowledge sources simply don't cover this particular error.

Note: you can ask me a follow up question by @ mentioning me again :speech_balloon:

This also likely explains the `Astro.generator` deprecation warning you were seeing earlier — it may have been a side effect of the legacy collections system being invoked internally.