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APPX_E_BLOCK_HASH_INVALID
APPX_E_BLOCK_HASH_INVALID means that the computed hash of a package block differs from the hash recorded in the block map. This is an integrity failure, not merely a missing optional resource.
Typical causes and actions
- Check whether the package was altered after it was built, block-mapped, or signed.
- Redownload or recopy the artifact and compare a whole-file hash with the build output.
- Regenerate the package and signature together if the build pipeline changes payload files, compression, or metadata.
The block map is designed for integrity verification, incremental download, and differential updates, so the package must be rebuilt rather than patched in place.
Microsoft: MSIX block map and integrity
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