iOS-Google登录库问题

Question

My iOS app used the Google+ library to perform the Google Account login, but that method has been deprecated and it's not working. So I want to use the new Google SignIn Library.

I have added the following to my pod file:

pod ‘Google/SignIn’

Then I have run the command 'pod install' to install it. The result:

Installing FirebaseAnalytics (3.9.0)
Installing FirebaseCore (3.6.0)
Installing FirebaseInstanceID (1.0.10)
Installing FontAwesome (4.3.0)
Installing GTMOAuth2 (1.1.4)
Installing GTMSessionFetcher (1.1.10)
Installing Google (3.0.3)
Installing GoogleSignIn (4.0.2)
Installing GoogleToolboxForMac (2.1.1)

I have opened the project and, without changing any line of code, it fails to build with the following error:

GTMOAuth2ViewControllerTouch.m:331:41: Use of undeclared identifier 'GTMOAuth2ErrorTokenUnavailable'; did you mean 'kGTMOAuth2ErrorTokenUnavailable'?

What is wrong with this library? It looks like it is using a variable that doesn't exist... GTMOAuth2ViewControllerTouch.m is a class from one of the new libraries installed with the Google SignIn library.

How can I use Google SignIn?

I'm following the official guide: https://developers.google.com/identity/sign-in/ios/start-integrating

In that page there is not mention of that error.

My Xcode version is 7.3.1. It's an objective-c app.

Answer 1

You can download the video from following link:-

Video Link

Answer 2

This happen to me when I have "googleplus-ios-sdk" pod library installed. After removing the library, it works. "googleplus-ios-sdk" is an very outdated library (last update on 2014).

Perhaps you can create a new Xcode project, copy and install the pod libraries, and test one by one which library is having trouble with "GoogleSignIn".