---
title: NSFileProviderVolumeUnsupportedReason
framework: fileprovider
role: symbol
role_heading: Structure
path: fileprovider/nsfileprovidervolumeunsupportedreason
---

# NSFileProviderVolumeUnsupportedReason

Constants that describe why an external volume might not be eligible for storing a domain.

## Declaration

```swift
struct NSFileProviderVolumeUnsupportedReason
```

## Topics

### Reasons

- [unknown](fileprovider/nsfileprovidervolumeunsupportedreason/unknown.md)
- [nonEncrypted](fileprovider/nsfileprovidervolumeunsupportedreason/nonencrypted.md)
- [readOnly](fileprovider/nsfileprovidervolumeunsupportedreason/readonly.md)
- [network](fileprovider/nsfileprovidervolumeunsupportedreason/network.md)
- [quarantined](fileprovider/nsfileprovidervolumeunsupportedreason/quarantined.md)

### Initializers

- [init(rawValue:)](fileprovider/nsfileprovidervolumeunsupportedreason/init(rawvalue:).md)

### Type Properties

- [nonAPFS](fileprovider/nsfileprovidervolumeunsupportedreason/nonapfs.md)

## Relationships

### Conforms To

- [BitwiseCopyable](swift/bitwisecopyable.md)
- [Equatable](swift/equatable.md)
- [ExpressibleByArrayLiteral](swift/expressiblebyarrayliteral.md)
- [OptionSet](swift/optionset.md)
- [RawRepresentable](swift/rawrepresentable.md)
- [Sendable](swift/sendable.md)
- [SendableMetatype](swift/sendablemetatype.md)
- [SetAlgebra](swift/setalgebra.md)

## See Also

### Determining eligibility

- [NSFileProviderManager.EligibilityResult.eligible](fileprovider/nsfileprovidermanager/eligibilityresult/eligible.md)
- [NSFileProviderManager.EligibilityResult.ineligible(_:)](fileprovider/nsfileprovidermanager/eligibilityresult/ineligible(_:).md)