[BUG]: MissingSchema error for app extension while build Shopify app

[maruffahmed]

Please confirm that you have:

• Searched existing issues to see if your issue is a duplicate. (If you’ve found a duplicate issue, feel free to add additional information in a comment on it.)
• Reproduced the issue in the latest CLI version.

In which of these areas are you experiencing a problem?

Extension

Expected behavior

yarn build should check the theme app extension but shouldn't warn about the MissingSchema for snippets files as snippets files don't support the schema tag.

Actual behavior

When running the shopify app build command, I receive an error that says “[error]: MissingSchema The schema does not exist” and it refers to the liquid file in the snippets directory.
However, it is contradictory because when I add a schema block to the snippet, I get another error that says, “Error while updating drafts: [snippets/text_field.liquid] Liquid syntax error: Unknown tag ‘schema’”.
Matthew_Grist

Verbose output

Verbose output

2025-01-26T10:50:22.251Z: Sync-reading the content of file at extensions/StoreSEO-Meta/snippets/canonical_url.liquid...
2025-01-26T10:50:22.251Z: Sync-reading the content of file at extensions/StoreSEO-Meta/snippets/google_site_verification_meta.liquid...
2025-01-26T10:50:22.251Z: Sync-reading the content of file at extensions/StoreSEO-Meta/snippets/local_seo_article.liquid...
2025-01-26T10:50:22.251Z: Sync-reading the content of file at extensions/StoreSEO-Meta/snippets/local_seo_blogs.liquid...
2025-01-26T10:50:22.251Z: Sync-reading the content of file at extensions/StoreSEO-Meta/snippets/local_seo_collection.liquid...
2025-01-26T10:50:22.251Z: Sync-reading the content of file at extensions/StoreSEO-Meta/snippets/local_seo_local_business.liquid...
2025-01-26T10:50:22.251Z: Sync-reading the content of file at extensions/StoreSEO-Meta/snippets/local_seo_organization.liquid...
2025-01-26T10:50:22.251Z: Sync-reading the content of file at extensions/StoreSEO-Meta/snippets/local_seo_product.liquid...
2025-01-26T10:50:22.251Z: Sync-reading the content of file at extensions/StoreSEO-Meta/snippets/local_seo.liquid...
2025-01-26T10:50:22.251Z: Sync-reading the content of file at extensions/StoreSEO-Meta/snippets/no_follow_no_index.liquid...
2025-01-26T10:50:22.251Z: Sync-reading the content of file at extensions/StoreSEO-Meta/snippets/redirect_out_of_stock.liquid...
2025-01-26T10:50:22.251Z: Sync-reading the content of file at extensions/StoreSEO-Meta/snippets/rich_snippet.liquid...
2025-01-26T10:50:22.251Z: Sync-reading the content of file at extensions/StoreSEO-Meta/snippets/social_media_preview.liquid...
2025-01-26T10:50:22.251Z: Sync-reading the content of file at extensions/StoreSEO-Meta/snippets/local_seo_brea            storeseo-meta │
          storeseo-meta │ [error]: MissingSchema
          storeseo-meta │ The schema does not exist
          storeseo-meta │
          storeseo-meta │ 1  {%- if product.metafields.store_seo.cannonical_url.size > 2 -%}
          storeseo-meta │
          storeseo-meta │
          storeseo-meta │ [error]: MissingSchema
          storeseo-meta │ The schema does not exist
          storeseo-meta │
          storeseo-meta │ 1  {% if shop.metafields.store_seo.google_site_verification_meta.size > 2 %}
          storeseo-meta │
          storeseo-meta │
          storeseo-meta │ [error]: MissingSchema
          storeseo-meta │ The schema does not exist
          storeseo-meta │
          storeseo-meta │ 1  {%- if request.page_type == 'article' -%}
          storeseo-meta │
          storeseo-meta │
          storeseo-meta │ [error]: MissingSchema
          storeseo-meta │ The schema does not exist
          storeseo-meta │
          storeseo-meta │ 1  {% if template contains 'blog' %}
          storeseo-meta │
          storeseo-meta │
          storeseo-meta │ [error]: MissingSchema
          storeseo-meta │ The schema does not exist
          storeseo-meta │
          storeseo-meta │ 1  {% if template contains 'collection' %}
          storeseo-meta │
          storeseo-meta │
          storeseo-meta │ [error]: MissingSchema
          storeseo-meta │ The schema does not exist
          storeseo-meta │
          storeseo-meta │ 1  {%- if request.page_type == 'index' -%}
          storeseo-meta │
          storeseo-meta │
          storeseo-meta │ [error]: MissingSchema
          storeseo-meta │ The schema does not exist
          storeseo-meta │
          storeseo-meta │ 1  {%- if request.page_type == 'index' -%}
          storeseo-meta │
          storeseo-meta │
          storeseo-meta │ [error]: MissingSchema
          storeseo-meta │ The schema does not exist
          storeseo-meta │
          storeseo-meta │ 1  {% if template contains 'product' %}
          storeseo-meta │
          storeseo-meta │
          storeseo-meta │ [error]: MissingSchema
          storeseo-meta │ The schema does not exist
          storeseo-meta │
          storeseo-meta │ 1  {% if shop.metafields.store_seo.jsonld_enabled == "true" %}
          storeseo-meta │
          storeseo-meta │
          storeseo-meta │ [error]: MissingSchema
          storeseo-meta │ The schema does not exist
          storeseo-meta │
          storeseo-meta │ 1  {%- if product -%}
          storeseo-meta │
          storeseo-meta │
          storeseo-meta │ [error]: MissingSchema
          storeseo-meta │ The schema does not exist
          storeseo-meta │
          storeseo-meta │ 1  {% if shop.metafields.store_seo.redirect_out_of_stock_enabled == "true" %}
          storeseo-meta │
          storeseo-meta │
          storeseo-meta │ [error]: MissingSchema
          storeseo-meta │ The schema does not exist
          storeseo-meta │
          storeseo-meta │ 1  {%- if product and shop.metafields.store_seo.jsonld_enabled == "true" -%}
          storeseo-meta │
          storeseo-meta │
          storeseo-meta │ [error]: MissingSchema
          storeseo-meta │ The schema does not exist
          storeseo-meta │
          storeseo-meta │ 1  {%- if product.metafields.store_seo.facebook_preview_image_url.size > 2 -%}
          storeseo-meta │
          storeseo-meta │
          storeseo-meta │ [error]: MissingSchema
          storeseo-meta │ The schema does not exist
          storeseo-meta │
          storeseo-meta │ 1  {% if shop.metafields.store_seo.local_seo_breadcrumb_schema.value != null %}

Reproduction steps

1. Install latest @shopify/cli 3.74.1
2. Make sure your have an extension with blocks and snippets
3. Try to build the app using yarn build

Note: We are using Node, React template for our APP

Operating System

Mac OS Sequoia 15.2

Shopify CLI version (shopify --version)

@shopify/cli/3.74.1 darwin-arm64 node-v23.6.1

Shell

Warp

Node version (run node -v if you're not sure)

23.6.1

What language and version are you using in your application?

No response

[graygilmore]

Thanks for the report @maruffahmed! This has actually been fixed in the downstream tool but hasn't been ported to the CLI yet: https://github.com/Shopify/theme-tools/releases/tag/%40shopify%2Ftheme-check-common%403.6.0

Let me get a PR open for this.