How to get the NSError message in iOS? How to get the NSError message in iOS? ios ios

How to get the NSError message in iOS?


Normally you'll want to use [error localizedDescription] to get the text to show to the user.

Read the NSError documentation for more options.

For simple logging when developing, you can do NSLog(@"Error: %@", error). (That will give you 'localizedDescription' and everything else on your log in Xcode.)


To get error message only, use:

NSString *msg = [error localizedDescription];

But for logging more details, use %@ format, like:

NSLog(@"Error: %@", error);


To add to the current answers, you can get the failure message and the failure reason. To do that, you can do this when presented with an NSError:

NSString *message = [NSString stringWithFormat:@"%s\n%@\n%@", __PRETTY_FUNCTION__, displayRegion, [error localizedDescription], [error localizedFailureReason]];

This will create a 3 line string with the name of the method where the error occurred, the description of the error and a sentence explaining the error.

If more info is be supplied in the NSError, you can get the localizedRecoverySuggestion as well and add that to the message like so:

NSString *message = [NSString stringWithFormat:@"%s\n%@\n%@\n%@", __PRETTY_FUNCTION__, displayRegion, [error localizedDescription], [error localizedFailureReason], [error localizedRecoverySuggestion]];


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