When running shopify app build, to test if the theme app extension is ok, we see a warning MissingSchema in the terminal, for our snippets. I don’t recall this message appearing before. Snippet files in official Shopify Themes like Dawn don’t have any schema in them. If we add an empty schema to m…

Hi - this is a known bug with the CLI and there’s a fix coming very soon for this. (And can confirm snippet files should not contain schemas)

@Liam-Shopify facing same issues when using 3.88.1 darwin-arm64 node-v24.11.0, even i delete the extensions folder and re-create from shopify extension create still facing same issues

The dev stop at this ```❌ Error 11:31:39 │ kiriminaja-cart │ └ [blocks/star_rating.liquid] Liquid syntax error (line 11): Unknown tag ‘schema’`

app-preview │ :cross_mark: Error 10:35:04 │ genie-booking-appointment │ └ [blocks/appointment-calendar.liquid] Liquid syntax error (line 82): Unknown tag ‘schema’ 10:35:04 │ genie-booking-appointment │ └ [blocks/embeded.liquid] Liquid syntax error (line 10): Unknown tag ‘schema’ How can I fix t…

Same issue here, started around 10am, dev preview with theme app extension failing “Unknown tag ‘schema’” [blocks/star_rating.liquid] Liquid syntax error (line 11): Unknown tag ‘schema’

I am also facing same issue. Liquid syntax error (line 83): Unknown tag ‘schema’ How to resolve this ?

Reporting same issue deploying app extension update via CLI v3.88.1. Experienced no issues until today around 1pm AEDT. [blocks/**.liquid] Liquid syntax error | (line 1417): Unknown tag ‘schema’

Hi We are also having the same issue: bundle: [blocks/app-embed.liquid] Liquid syntax error (line 196): Unknown tag ‘schema’ Versions: @GovRayt /cli/3.84.1 darwin-arm64 node-v20.10.0

same issue coming, doesn’t matter which cli you are on

We are facing the same. Builds are broken. Started to face this today onwards

Here to report the same issue. Using: @shopify/cli/3.88.0 darwin-arm64 node-v24.4.1

Missing schema warning in snippets

Extensions

Luke December 16, 2025, 10:51am 15

Closing this.

Topic		Replies	Views
Shopify Theme App Extension deploy fails with Liquid syntax error: Unknown tag 'schema' even though {% schema %} is valid Extensions theme-app-extension	2	179	December 16, 2025
Latest Shopify CLI Error w/ Theme App Extension Shopify CLI and Libraries app-commands	13	730	July 8, 2025
Liquid Syntax Error: Unknown Tag ‘Schema' Extensions theme-app-extension	2	309	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
Deployment failing for Theme App Extension with schema tags in Liquid files Extensions checkout-ui-ext , theme-app-extension	1	114	December 16, 2025

Missing schema warning in snippets

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