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WCM_E_INVALIDLANGUAGEFORMAT
WCM_E_INVALIDLANGUAGEFORMAT is the failure HRESULT 0x8022000E (signed decimal -2145255410, unsigned decimal 2149711886). Its severity bit is 1, facility is 34 (FACILITY_STATE_MANAGEMENT), and the facility-specific code field is 0x000E.
AllStat records the Windows SDK description as “Invalid language string format.”
Meaning in Settings Management Infrastructure
The language identifier has invalid syntax. The operation reached parsing localization or namespace identity metadata before language-specific resources can be selected. The first branch to test is whether a localized display name is supplied instead of a language tag; keep that separate from the possibility that underscore and hyphen conventions were mixed by custom tooling.
Point of failure
At this boundary, capture the exact language string and source XML line, then correlate it with namespace identity attributes and target language configuration. Assign ownership only after checking whether the field denotes language, locale, or resource fallback.
Causes to test independently
- a localized display name is supplied instead of a language tag
- underscore and hyphen conventions were mixed by custom tooling
- the language value contains an empty subtag or surrounding decoration
- a locale identifier was truncated or translated as ordinary user-visible text
Data to collect
- the exact language string and source XML line
- namespace identity attributes and target language configuration
- whether the field denotes language, locale, or resource fallback
- the serializer and normalization applied to the tag
- a language value emitted by the same Windows image’s official tooling
Step-by-step diagnosis
- preserve language identifiers as machine data
- validate them before namespace registration or manifest compilation
- do not translate, title-case, or localize the identifier itself
- use target-supported tags rather than inventing aliases
- recompile the metadata and confirm resource selection separately
Recovery strategy
A retry requires a valid language string. Installing a language pack does not correct malformed syntax.
What this value does not mean
WCM_E_NAMESPACENOTFOUND can occur after a valid language-specific identity resolves to no namespace. INVALIDLANGUAGEFORMAT means lookup never starts.
Illustrative scenario
An exporter converts “en-US” to “en_US” according to an unrelated locale library. The SMI identity parser rejects the changed form.
Implementation guidance
For operational telemetry, retain whether the field denotes language, locale, or resource fallback; also record the serializer and normalization applied to the tag. Preserve a redacted summary of a language value emitted by the same Windows image’s official tooling; use a cryptographic hash when that evidence is a file, stream, or generated artifact.
Official Microsoft references.
- Microsoft: SMI error and success constants.
- Microsoft: Settings Management Infrastructure API.
- Microsoft: SMI interfaces.
- Microsoft: ISettingsEngine::CreateSettingsIdentity.
- Microsoft: ISettingsEngine::GetNamespace.
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