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# localizedFailureReason

A string containing the localized explanation of the reason for the error.

```
var localizedFailureReason: String? { get }
```

## Discussion

The object in the user info dictionary for the key [`NSLocalizedFailureReasonErrorKey`](/documentation/Foundation/NSLocalizedFailureReasonErrorKey).

## See Also

[`domain`](/documentation/Foundation/NSError/domain)

A string containing the error domain.

[`code`](/documentation/Foundation/NSError/code)

The error code.

[`userInfo`](/documentation/Foundation/NSError/userInfo)

The user info dictionary.



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