My which was working fine until GCM integration, now give below error.

> 
> Undefined symbols for architecture armv7 error
> 
> 
> 

I am using the Architecture sam as that of sample app provided by google [HERE](https://github.com/googlesamples/google-services/blob/master/ios/gcm/GcmExample/AppDelegate.m)

[![enter image description here](https://i.stack.imgur.com/dDUK2.png)](https://i.stack.imgur.com/dDUK2.png)

But it is giving below error after using GCM code for Appdelegate.m

[![enter image description here](https://i.stack.imgur.com/If3az.png)](https://i.stack.imgur.com/If3az.png)

If anyone has faced problem ,please help me in resolving this issues..