Import LocalAuthentication.framework file on iPhone5 with iOS 7.1

This question has been asked here , but the selected answer and comments do not solve the problem. So I ask it again and am going to keep it simple.

I have an application where I use Touch ID. It works great on all devices except iPhone 5 with iOS 7.1.

To watch this.

• Create a new Xcode project.
• Add the LocalAuthentication infrastructure.
• Please note that the app is disabled immediately on iPhone 5 running iOS 7.1.
• Now mark LocalAuthentication as optional, but it still crashes on that particular device.

Note. I also set Link Structures to NO in build settings. Then I had to add a UIKit framework for the manully app. Also, I haven't done anything.

I have also tried the same with apple sample code , it also crashes for the same.

Crash log:

dyld: Symbol not found: _objc_isAuto
Referenced from: /System/Library/Frameworks/CoreFoundation.framework/Versions/A/CoreFoundation
Expected in: /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator7.1.sdk/usr/lib/libobjc.A.dylib
in /System/Library/Frameworks/CoreFoundation.framework/Versions/A/CoreFoundation

      

        
        
        
      

    

Please suggest something.