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ERROR_PACKAGE_NOT_SUPPORTED_ON_FILESYSTEM
Package deployment requirements are incompatible with the target volume
ERROR_PACKAGE_NOT_SUPPORTED_ON_FILESYSTEM means the selected volume lacks file-system behavior required by the package type or deployment mode. Package storage is managed by Windows and can depend on integrity, access control, reparse, encryption, sparse, or other semantics that are not available on every file system.
Identify the target PackageVolume and its file-system format rather than only checking free space. Retry on the system package volume or another supported local volume. Do not unpack the package onto an unsupported drive and register it from there unless that deployment model is explicitly documented; loose-file and external-location packages have different requirements from a normal installed MSIX.
What to inspect
- Record target volume, file-system type, and package type.
- Test the default system PackageVolume.
- Use external-location packaging only when its contract fits the app.
References
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