Symptom

When publishing a stream, you get a similar error as below. 

OT_HARDWARE_UNAVAILABLE: The selected voice or video devices are unavailable. 
Verify that the chosen devices are not in use by another application.

Applies To

• Video API

Resolution

1. Validate that the audio or video devices are not used by another application.
2. Restart the audio or video device. 
3. Close all the background running apps that could have acquired the camera.
4. Run Pre-Call Test to confirm that the device hardware meets the system requirements.

Cause

The OT_HARDWARE_UNAVAILABLE error indicates that the microphone or camera is not available. The audio or video device may have already been in use by another application or unavailable for other reasons.

Additional Information

Troubleshooting Issues with Video API