| Previous | Next |
| ERROR_MUI_INVALID_RC_CONFIG | ERROR_MUI_INVALID_ULTIMATEFALLBACK_NAME |
ERROR_MUI_INVALID_LOCALE_NAME
ERROR_MUI_INVALID_LOCALE_NAME means the locale recorded for a MUI resource is not valid for the resource loader. The language-specific file and its directory must identify a valid language for the deployed resource set.
Inspect both the locale encoded by the resource and the language directory containing the file. Correct packaging or deployment when those identities disagree instead of changing the user’s current display language.
What to check
- Check the language folder name and the locale value emitted by the resource build process.
- Use consistent locale names across the package manifest, resource configuration, and installer layout.
- Rebuild the affected language resources when the project moved between localization or packaging systems.
Microsoft: MUI Resource Management
Looking for a different code? Search another status or error code.