---
title: Error Constants
framework: screencapturekit
role: collectionGroup
role_heading: API Collection
path: screencapturekit/error-constants
---

# Error Constants

Error code constants for framework operations.

## Topics

### User cancellation

- [userStopped](screencapturekit/scstreamerror/userstopped.md)

### Privacy and entitlements

- [userDeclined](screencapturekit/scstreamerror/userdeclined.md)
- [missingEntitlements](screencapturekit/scstreamerror/missingentitlements.md)

### Stream management

- [attemptToStartStreamState](screencapturekit/scstreamerror/attempttostartstreamstate.md)
- [attemptToStopStreamState](screencapturekit/scstreamerror/attempttostopstreamstate.md)
- [attemptToUpdateFilterState](screencapturekit/scstreamerror/attempttoupdatefilterstate.md)
- [attemptToConfigState](screencapturekit/scstreamerror/attempttoconfigstate.md)
- [failedToStart](screencapturekit/scstreamerror/failedtostart.md)
- [failedToStartAudioCapture](screencapturekit/scstreamerror/failedtostartaudiocapture.md)
- [failedToStopAudioCapture](screencapturekit/scstreamerror/failedtostopaudiocapture.md)
- [failedToStartMicrophoneCapture](screencapturekit/scstreamerror/failedtostartmicrophonecapture.md)
- [systemStoppedStream](screencapturekit/scstreamerror/systemstoppedstream.md)
- [internalError](screencapturekit/scstreamerror/internalerror.md)
- [removingStream](screencapturekit/scstreamerror/removingstream.md)

### Shareable content

- [noCaptureSource](screencapturekit/scstreamerror/nocapturesource.md)
- [noDisplayList](screencapturekit/scstreamerror/nodisplaylist.md)
- [noWindowList](screencapturekit/scstreamerror/nowindowlist.md)
- [failedApplicationConnectionInvalid](screencapturekit/scstreamerror/failedapplicationconnectioninvalid.md)
- [failedApplicationConnectionInterrupted](screencapturekit/scstreamerror/failedapplicationconnectioninterrupted.md)
- [failedNoMatchingApplicationContext](screencapturekit/scstreamerror/failednomatchingapplicationcontext.md)

### Invalid parameters

- [invalidParameter](screencapturekit/scstreamerror/invalidparameter.md)

## See Also

### Error inspection

- [SCStreamError.Code](screencapturekit/scstreamerror/code.md)
- [errorDomain](screencapturekit/scstreamerror/errordomain.md)