Unrecognized selector sent to class in OAuthCore class

Question

I have created one library project, in that i am trying to Twitter sharing. But when i tried to on Twitter the application is crashes at following line

NSString *_oAuthNonce = [NSString ab_GUID];

by error:

+[NSString ab_GUID]: unrecognized selector sent to class 0x1a09fd8

ab_GUID this method is present in OAuthCore class

+ (NSString *)ab_GUID
{
    CFUUIDRef u = CFUUIDCreate(kCFAllocatorDefault);
    CFStringRef s = CFUUIDCreateString(kCFAllocatorDefault, u);
    CFRelease(u);
    return [(NSString *)s autorelease];
}

(My all classes are present in static Library)

score 1 · Answer 1 · edited May 23 '17 at 11:53

1

Since you are saying that you use a static library:

Make sure you have the -ObjC flag enabled (in the project using the library same problem treated here). Or it will not link categories in a static library.

Objective-C categories in static library

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edited May 23 '17 at 11:53

Community

1
1

answered Jul 10 '12 at 13:02

Pfitz

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Yes my -ObjC flag is enabled, but still it crashes. There are two static methods in OAuthCore class where application is crashing by error Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '+[NSString ab_GUID]: unrecognized selector sent to class 0x1a15fd8' – Pallavi Jul 11 '12 at 05:23

score 0 · Accepted Answer · answered Jul 10 '12 at 08:11

0

Have you imported the <OAuthCore/OAuth+Additions.h>? It seems importing <OAuthCore/OAuthCore.h> won't include this automatically.

Also make sure OAuth+Additions.m is compiled into the static library.

answered Jul 10 '12 at 08:11

kennytm

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i have imported #import "OAuth+Additions.h" – Pallavi Jul 10 '12 at 08:20
is not found in my class – Pallavi Jul 10 '12 at 08:21
Yes OAuth+Additions.m is compiled but still it crashes – Pallavi Jul 10 '12 at 08:24

Unrecognized selector sent to class in OAuthCore class

2 Answers2