What does HRESULT 0x80080201 (APPX_E_INTERLEAVING_NOT_ALLOWED) mean?

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The app package is invalid because its contents use an unsupported interleaved layout.

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APPX_E_PACKAGING_INTERNAL	APPX_E_RELATIONSHIPS_NOT_ALLOWED

APPX_E_INTERLEAVING_NOT_ALLOWED

APPX_E_INTERLEAVING_NOT_ALLOWED means that the package does not follow the layout expected for an .appx or .msix package. Windows app packages use the OPC-based package format, but ordinary ZIP layout or a post-processing tool can produce an invalid arrangement.

What to check

Recreate the package with the Windows packaging tools rather than repacking it with a general ZIP utility.
Confirm that no signing, compression, upload, or transport step rewrites the package after it is produced.
Use the original build output when comparing a failing artifact with a package that installs successfully.

Do not try to fix this by editing files inside the package; create a new package from the source layout.

Microsoft: troubleshoot Windows app packages

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