Thread 1: EXC_BAD_ACCESS (code=2, address=0xbf7ffffc) GMTOAuth2 - ios

Question

I am using GMTOAuth2 in an application with one viewController and it works fine, Then I add same code to another application that contains more viewControllers, It loads the webView with textfields for username and password but if I click on anything in this view it crashes with Thread 1: EXC_BAD_ACCESS (code=2, address=0xbf7ffffc) with void SendDelegateMessage(NSInvocation *): delegate (webView:decidePolicyForNavigationAction:request:frame:decisionListener:) failed to return after waiting 10 seconds. main run loop mode: kCFRunLoopDefaultMode in the console. My code for authorization part looks like this:
- (void)awakeFromNib {
[super awakeFromNib];
GTMOAuth2Authentication *auth = nil;
auth = [GTMOAuth2ViewControllerTouch authForGoogleFromKeychainForName:kKeychainItemName
clientID:kMyClientID
clientSecret:kMyClientSecret];
if (auth)
{
[auth authorizeRequest:nil
delegate:self
didFinishSelector:#selector(authentication:request:finishedWithError:)];
}
}
- (void)signInToGoogle {
[self signOut];
NSString *keychainItemName = kKeychainItemName;
NSString *scope = #"https://spreadsheets.google.com/feeds https://docs.google.com/feeds";
NSString *clientID = kMyClientID;
NSString *clientSecret = kMyClientSecret;
if ([clientID length] == 0 || [clientSecret length] == 0) {
NSString *msg = #"The sample code requires a valid client ID and client secret to sign in.";
[self displayAlertWithMessage:msg];
return;
}
SEL finishedSel = #selector(viewController:finishedWithAuth:error:);
GTMOAuth2ViewControllerTouch *viewController = [[GTMOAuth2ViewControllerTouch alloc] initWithScope:scope
clientID:clientID
clientSecret:clientSecret
keychainItemName:keychainItemName
finishedSelector:finishedSel];
delegate:self
[self presentViewController:viewController animated:YES completion:^{}];
[[self navigationController] pushViewController:viewController animated:YES];
}
- (void)authentication:(GTMOAuth2Authentication *)auth
request:(NSMutableURLRequest *)request
finishedWithError:(NSError *)error {
if (error != nil) {
NSLog(#"error!");
} else {
[self isAuthorizedWithAuthentication:auth];
self.auth = auth;
}
}
And copied the same class from first application to second one, and made exactly same nib file.