How to fix the issue Google Tag Manager integration with Xamarin Android App

N2517 1 Reputation point

I am developing Mobile app using Xamarin Android. I have integrated Firebase with our app successfully. I am using GTM android version 5.

Google Tag Manager container with test tag (GTM-xxxxxxx.json) is placed in Assets/Containers folder as specified, however while all event records ARE showing up in Firebase Analytics console, they do not seem to be sent to GTM. Logs seem to indicate an issue with loading GTM:

Failed to invoke Tag Manager's initialize() method: java.lang.reflect.InvocationTargetException: Source:97)

and error when run container preview:

Java.Lang.NoSuchMethodError: 'No virtual method transactAndReadExceptionReturnVoid(ILandroid/os/Parcel;)V in class Lcom/google/android/gms/internal/measurement/zzq; or its super classes (declaration of '' appears in /data/app/com.xxpackage.xxname-OT45U1GpA6ulFZw56hg9XQ==/base.apk)'
Using following Nuget Packages:

"Xamarin.Firebase.Analytics" 71.1630.4
"Xamarin.Firebase.Analytics.Impl" 71.1630.4
"Xamarin.Firebase.Messaging" 121.0.1
"Xamarin.GooglePlayServices.TagManager" 71.1604.4
android minSdkVersion="24" and targetSdkVersion="30"

Any insight into this issue would be super helpful, as my search hasn't turned up anything useful that is Xamarin-related so far.

A Microsoft open-source app platform for building Android and iOS apps with .NET and C#.
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  1. JarvanZhang 23,951 Reputation points

    Hello N2517-2864,​

    Welcome to our Microsoft Q&A platform!

    This may be related to the version compatibility with 'Xamarin.GooglePlayServices.TagManager' package. Someone faced the similar issue, the workaround is to download the package to 60 version. Here is the topic, you could refer to it.

    If the problem described by the link is different from the one you are experiencing, it's suggested to open a new thread to report the issue to the github repo.

    Best Regards,

    Jarvan Zhang

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