objective c - NSError no visible interface iOS 8.1 -

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this piece of code working on ios 8. however, when build in release mode a

no visible @interface 'nserror' declares selector 'code'.

code found on nserror. can click , see that, however, don't understand why stopped working xcode 6.1 , ios 8.1

i tried building on 5.1.1 , built fine in release mode. 

+(bool) isresponseerror:(nsurlresponse *)response responsestring:(nsstring *)responsestring error:(nserror *__autoreleasing *)error {     nsinteger statuscode = 0;      if (*error) {         statuscode = [*error code];     }      if ([response iskindofclass:[nshttpurlresponse class]]) {         statuscode = [(nshttpurlresponse *)response statuscode];     }      if (statuscode >= 400 || statuscode <= kcfurlerrorunknown) {         nsmutabledictionary *dic = [nsmutabledictionary dictionary];         [dic setvalue:[nshttpurlresponse localizedstringforstatuscode:statuscode] forkey:nslocalizeddescriptionkey];           return true;     } else {         id ret = [serialization deserializejson:responsestring];          if ([ret superclass] == [nsmutabledictionary class] || [ret class] == [nsdictionary class]) {             if ([ret objectforkey:@"error"]) {                 nsmutabledictionary *dic = [nsmutabledictionary dictionary];                 [dic setvalue:[ret objectforkey:@"error"] forkey:nslocalizeddescriptionkey];                 return true;             } else {                 return false;             }         } else {             return false;         }     } }

you passing in nserror instance not need __autoreleasing or pointer pointer:

+(bool) isresponseerror:(nsurlresponse *)response responsestring:(nsstring *)responsestring error:(nserror *)error {     nsinteger statuscode = 0;      if (error) {         statuscode = [error code];     }

if there no error prior 8.1 , not because compiler error checking improved.


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