CODEWITHSUNDEEP
iosnserror
shoujo_sm
shoujo_sm

Reputation: 3203

localizedFailureReason returns null

I need to show error localizedFailureReason for some reason. I am getting NSError 

Error Domain=NSCocoaErrorDomain Code=3840 "The operation couldn’t be completed. (Cocoa error 3840.)" (Unexpected end of file while parsing object.) UserInfo=0x178a72b80 {NSDebugDescription=Unexpected end of file while parsing object.}

when I try to log

[error localizedFailureReason]

I am getting null value for this. May I know what caused this? I am only getting 

The operation couldn’t be completed. (Cocoa error 3840.)

for 

[error localizedDescription]  only

Below is my complete code for the method:

+(NSDictionary *)insertErrorIntoFormat:(NSError*)error{

NSLog(@"1.%@",[error localizedDescription]);
NSLog(@"2.%@",[error description]);
NSLog(@"3.%@",[self getCurrentDateTimeString]);

NSDictionary *threat = [NSDictionary dictionaryWithObjectsAndKeys:
                        [self getCurrentDateTimeString], kTimestamp,
                        [error localizedDescription], @"logs",
                        [error localizedFailureReason], @"reason",
                        nil];


   return threat;
}

Upvotes: 1

Views: 670

Answers (1)

benzado
benzado

Reputation: 84338

An NSError isn't required to have a failure reason string. It's perfectly valid for it to return nil. You need to check the return value before you add it to an NSDictionary or NSArray since those data structures cannot contain a nil value.

Upvotes: 1

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