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APPX_E_INVALID_MANIFEST
APPX_E_INVALID_MANIFEST means that AppxManifest.xml does not satisfy the app package manifest requirements. The manifest defines package identity, dependencies, capabilities, visual elements, and extension points.
How to investigate
- Read the detailed AppX packaging or deployment event because it usually identifies the manifest element, attribute, or schema condition that failed.
- Validate namespaces, schema version, identity fields, declared capabilities, and referenced visual assets against the target Windows version.
- Rebuild and sign the package after changing the manifest; editing a signed package invalidates its signature.
Treat the manifest and signature as one unit: a corrected manifest must be packaged and signed again.
Microsoft: app package manifest
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