User Authentication: Unable to login on Android - No static method addCallback

I'm using this plugin to authenticate my Android app with Azure AD. I have set up an app on the Azure side, as needed. On login, though, I'm getting this error: Error Logging in! Error: java.lang.NoSuchMethodError: No static method addCallback(Lcom/google/common/util/concurrent/ListenableFuture;Lcom/google/common/util/concurrent/FutureCallback;)V in class Lcom/google/common/util/concurrent/Futures; or its super classes (declaration of 'com.google.common.util.concurrent.Futures' appears in /data/app/<app info>==/base.apk)

In terms of behaviour: when I click the button that should send me to Azure AD Auth, a pop-up comes up with nothing on it, then disappears.

As background: I have been unable to add the ALLOWED EXTERNAL REDIRECT URLS, since I can't find that specific setting in my Azure AD portal. The screen-shot that the README.md links to just does not exist in my login. There IS a way to add a Redirect URL for an Android app, but that URL is generated automatically by the portal (App name > Authentication > Android > Add URI). There, I add my package name and it generates a signature hash and a URL of the format msauth://<package-name>/<encoded signature hash>.

My code looks somewhat like this:

        var client = new MobileServiceClient("https://login.microsoftonline.com/<tenant ID>");
    var redirect_val_1 = "<package name>://easyauth.callback";
        var redirect_val_2 = "msauth://<my package name>/<the encoded signature hash>";
    client.login(AuthenticationProvider.Google, redirect_val_1)
    .then((user) => {
            console.log(`Logged In! UserID: ${user.userId}`);
            user.getProviderCredentials().then((result) => {
                console.log(`Surname: ${result.surname}`);
                console.log(`Given Name: ${result.givenName}`);
                console.log(`Name: ${result.name}`);
            });
        }, (e) => {
            console.log("Error Logging in!", e);
        });

I have tried this with both formats of the redirect URLs, as implied above (with the msauth and the easyauth options) and both cause the same error.

I have tried the proplugins version of this plugin, too, and that gives me a whole different error (Error Logging in! Error: java.lang.ClassCastException: com.tns.NativeScriptApplication cannot be cast to android.app.Activity). I don't know where to report that error and look for help.

I am using Nativescript 7.2.1, tns-android 6.5.3.

What am I doing wrong?

PeterStaev / nativescript-azure-mobile-apps

User Authentication: Unable to login on Android - No static method addCallback #41