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# AVSampleBufferDisplayLayerFailedToDecodeNotification

A notification the system posts when a sample buffer display layer fails to decode.

```
extern NSString * const AVSampleBufferDisplayLayerFailedToDecodeNotification;
```

## Discussion

You can retrieve the error object from the user information dictionary by querying it for its [`AVSampleBufferDisplayLayerFailedToDecodeNotificationErrorKey`](/documentation/AVFoundation/AVSampleBufferDisplayLayerFailedToDecodeNotificationErrorKey) value.

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