When I login with Twitter ,it crash on ios devices

ios

#1

When I use the method below for Twitter Login:

[[Twitter sharedInstance] logInWithCompletion:^(TWTRSession *session, NSError *error) {
if(session)
{
NSLog(@"=====Twitter=====userId: %@",[session userID]);
}
else
{
NSLog(@"=====Twitter=====error: %@",[error localizedDescription]);
}
}];

It crash on ios devices,

-[AppController window]: unrecognized selector sent to instance 0x1c2bfd0
libc++abi.dylib: terminate_handler unexpectedly threw an exception

Do anyone know how to solve it, thank you.


#2