Missing metadata type definition in registry for id 'LightningOutApp'. #3435
Description
Summary
API v65.0 introduced a new metadata type: LightningOutApp, which represents a Lightning Out 2.0 application. However, this is not recognized as a valid metadata type, ex., when running sf project retrieve start -m LightningOutApp.
While the type is not listed in the Metadata Registry , it is listed as available in the Metadata Coverage Report for v65.0.
Without this support, we are unable to meaningfully use Lightning Out 2.0 applications w/version control.
Steps To Reproduce
- Ensure
sfdx-project.jsonis using v65.0 or later. - Create a Lightning Out 2.0 application, via
Setup > Lightning Out 2.0 Apps > Lightning Out 2.0 App Manager > New Lightning Out 2.0 App. - Run the retrieve command:
sf project retrieve start -m LightningOutAppExpected result
The retrieve command should pull the relevant metadata for any Lightning Out 2.0 applications in the target environment.
Actual result
Error (RegistryError): Missing metadata type definition in registry for id 'LightningOutApp'.
Try this:
Did you mean one of the following types? [LightningBolt]
Confirm the metadata type name is correct. Validate against the registry at:
<https://github.com/forcedotcom/source-deploy-retrieve/blob/main/src/registry/metadataRegistry.json>
If the type is not listed in the registry, check that it has Metadata API support via the Metadata Coverage Report:
<https://developer.salesforce.com/docs/metadata-coverage>
If the type is available via Metadata API but not in the registry
- Open an issue <https://github.com/forcedotcom/cli/issues>
- Add the type via PR. Instructions: <https://github.com/forcedotcom/source-deploy-retrieve/blob/main/contributing/metadata.md>
System Information
Using zsh on macOS. Version details:
{
"architecture": "darwin-arm64",
"cliVersion": "@salesforce/cli/2.109.6",
"nodeVersion": "node-v22.20.0",
"osVersion": "Darwin 25.0.0",
"rootPath": "/Users/jsiders/.npm-global/lib/node_modules/@salesforce/cli",
"shell": "zsh",
"pluginVersions": [
"@corekraft/flow-linter 1.0.1 (user) published 62 days ago (Thu Aug 21 2025) (latest is 1.3.0)",
"@oclif/plugin-autocomplete 3.2.35 (core)",
"@oclif/plugin-commands 4.1.33 (core)",
"@oclif/plugin-help 6.2.33 (core)",
"@oclif/plugin-not-found 3.2.68 (core)",
"@oclif/plugin-plugins 5.4.48 (core)",
"@oclif/plugin-search 1.2.32 (core)",
"@oclif/plugin-update 4.7.8 (core)",
"@oclif/plugin-version 2.2.33 (core)",
"@oclif/plugin-warn-if-update-available 3.1.48 (core)",
"@oclif/plugin-which 3.2.40 (core)",
"@salesforce/cli 2.109.6 (core)",
"agent 1.24.13 (core)",
"apex 3.8.3 (core)",
"api 1.3.3 (core)",
"auth 3.9.9 (core)",
"code-analyzer 5.4.0 (user) published 58 days ago (Tue Aug 26 2025) (latest is 5.5.0)",
"data 4.0.58 (core)",
"deploy-retrieve 3.23.3 (core)",
"flow 1.0.2 (user) published 184 days ago (Mon Apr 21 2025)",
"info 3.4.88 (core)",
"lightning-dev 3.5.1 (user) published 56 days ago (Wed Aug 27 2025) (latest is 4.5.2)",
"limits 3.3.67 (core)",
"marketplace 1.3.8 (core)",
"org 5.9.32 (core)",
"packaging 2.20.5 (core)",
"schema 3.3.82 (core)",
"settings 2.4.48 (core)",
"signups 2.6.32 (user) published 130 days ago (Sun Jun 15 2025) (latest is 2.6.49)",
"sobject 1.4.73 (core)",
"telemetry 3.6.58 (core)",
"templates 56.3.65 (core)",
"trust 3.7.113 (core)",
"user 3.6.38 (core)",
"@salesforce/sfdx-plugin-lwc-test 1.2.1 (user) published 383 days ago (Fri Oct 04 2024)",
"@salesforce/sfdx-scanner 4.12.0 (user) published 176 days ago (Tue Apr 29 2025)",
"lightning-flow-scanner 3.27.0 (user) published 101 days ago (Sun Jul 13 2025) (latest is 5.7.2)",
"sfdx-git-delta 6.16.0 (user) published 106 days ago (Tue Jul 08 2025) (latest is 6.23.0)"
]
}