---
title: USDPreviewSession.Error
framework: spatialpreview
role: symbol
role_heading: Enumeration
path: spatialpreview/usdpreviewsession/error
---

# USDPreviewSession.Error

Errors that can occur during a USD preview session

## Declaration

```swift
enum Error
```

## Topics

### Enumeration Cases

- [USDPreviewSession.Error.assetUnshareable](spatialpreview/usdpreviewsession/error/assetunshareable.md)
- [USDPreviewSession.Error.readOnlyStage](spatialpreview/usdpreviewsession/error/readonlystage.md)

## Relationships

### Conforms To

- [Equatable](swift/equatable.md)
- [Error](swift/error.md)
- [Escapable](swift/escapable.md)
- [Hashable](swift/hashable.md)
- [Sendable](swift/sendable.md)
- [SendableMetatype](swift/sendablemetatype.md)

## See Also

### Session state and errors

- [SpatialPreviewSessionState](spatialpreview/spatialpreviewsessionstate.md)
- [SpatialPreviewSessionError](spatialpreview/spatialpreviewsessionerror.md)
- [ConnectedSpatialEndpointObserver.UnavailableError](spatialpreview/connectedspatialendpointobserver/unavailableerror.md)
- [USDPreviewSession.Event](spatialpreview/usdpreviewsession/event.md)