Validation errors │ │ • bundle: [blocks/order_app.liquid] Liquid syntax error (line 7): │ │ Unknown tag ‘schema’

I’m experiencing the same issue. Shopify will likely patch this soon.

[image] Liquid syntax error : Unknown tag 'schema' when running shopify app dev Shopify CLI and Libraries Hi again folks - we’re working on a fix for this now. Will keep this topic updated with our progress. Closing this.

Shopify Theme App Extension deploy fails with Liquid syntax error: Unknown tag 'schema' even though {% schema %} is valid

Extensions

Luke December 16, 2025, 10:57am 3

Closing this.

Topic		Replies	Views
Liquid Syntax Error: Unknown Tag ‘Schema' Extensions theme-app-extension	2	309	December 16, 2025
Deployment failing for Theme App Extension with schema tags in Liquid files Extensions checkout-ui-ext , theme-app-extension	1	114	December 16, 2025
Liquid syntax error : Unknown tag 'schema' when running shopify app dev Shopify CLI and Libraries app-commands	181	4850	December 17, 2025
Missing schema warning in snippets Extensions theme-app-extension	14	877	December 16, 2025
CLI 3.84.1+ Regression: "Unknown tag 'schema'" for app_block with require_remote_ui Shopify CLI and Libraries app-commands	3	394	December 16, 2025

Shopify Theme App Extension deploy fails with Liquid syntax error: Unknown tag 'schema' even though {% schema %} is valid

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