What does HRESULT 0x80080203 (APPX_E_MISSING_REQUIRED_FILE) mean?

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Description:

The app package is missing a required footprint file such as its manifest or block map.

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APPX_E_RELATIONSHIPS_NOT_ALLOWED	APPX_E_INVALID_MANIFEST

APPX_E_MISSING_REQUIRED_FILE

APPX_E_MISSING_REQUIRED_FILE means that the package is incomplete. Windows requires AppxManifest.xml and AppxBlockMap.xml; when a code-integrity catalog is present, the package also requires AppxSignature.p7x.

Required checks

Extract the exact failing artifact and verify that the required footprint files are present at the package root.
If AppxMetadata/CodeIntegrity.cat is present, verify that the matching signature file was not removed.
Check publishing or download steps for partial files, exclusions, or antivirus processing after packaging.

This is a package construction or transfer problem; deployment cannot infer the missing metadata.

Microsoft: troubleshoot required app package files

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