Incompatibility with play-services-auth 21.0.0 and google_sign_in_android 6.1.22

[gourgouris]

Describe the bug
I can't compile my (android) app in release mode after upgrading google_sign_in_android to 6.1.22.
I get errors (10+) like:

[ +1 ms] Missing class com.google.android.gms.auth.api.credentials.CredentialPickerConfig$Builder (referenced from: void fman.ge.smart_auth.SmartAuthPlugin.requestHint(io.flutter.plugin.common.MethodCall, io.flutter.plugin.common.MethodChannel$Result))

To Reproduce
Steps to reproduce the behavior:

1. Have both smart_auth and google_sign_in_android latest versions in a flutter project with android
2. flutter build apk --release --verbose

Screenshots
N/A

smart_auth version: 2.0.0

Result of: flutter doctor --verbose

[√] Flutter (Channel stable, 3.19.3, on Microsoft Windows [Version 10.0.22621.3296], locale el-GR) • Flutter version 3.19.3 on channel stable at c:\flutter • Upstream repository https://github.com/flutter/flutter.git • Framework revision ba39319843 (3 weeks ago), 2024-03-07 15:22:21 -0600 • Engine revision 2e4ba9c6fb • Dart version 3.3.1 • DevTools version 2.31.1

[√] Windows Version (Installed version of Windows is version 10 or higher)

[√] Android toolchain - develop for Android devices (Android SDK version 34.0.0)
• Android SDK at [reducted]
• Platform android-34, build-tools 34.0.0
• Java binary at: C:\Program Files\Android\Android Studio\jbr\bin\java
• Java version OpenJDK Runtime Environment (build 17.0.7+0-b2043.56-10550314)
• All Android licenses accepted.

[√] Chrome - develop for the web
• Chrome at C:\Program Files\Google\Chrome\Application\chrome.exe

[√] Visual Studio - develop Windows apps (Visual Studio Community 2022 17.7.0)
• Visual Studio at C:\Program Files\Microsoft Visual Studio\2022\Community
• Visual Studio Community 2022 version 17.7.34003.232
• Windows 10 SDK version 10.0.22621.0

[√] Android Studio (version 2023.1)
• Android Studio at C:\Program Files\Android\Android Studio
• Flutter plugin can be installed from:
https://plugins.jetbrains.com/plugin/9212-flutter
• Dart plugin can be installed from:
https://plugins.jetbrains.com/plugin/6351-dart
• Java version OpenJDK Runtime Environment (build 17.0.7+0-b2043.56-10550314)

[√] VS Code (version 1.87.2)
• VS Code at [reducted]
• Flutter extension version 3.84.0

[√] Connected device (3 available)
• Windows (desktop) • windows • windows-x64 • Microsoft Windows [Version 10.0.22621.3296]
• Chrome (web) • chrome • web-javascript • Google Chrome 123.0.6312.59
• Edge (web) • edge • web-javascript • Microsoft Edge 120.0.2210.133

[√] Network resources
• All expected network resources are available.

• No issues found!

Smartphone (please complete the following information):

• Device: Android Emulator
• OS: Android API 33

Additional context
So, going through the release notes, google_sign_in_android says they upgraded play-services-auth to 21.0.0 (url)
The release notes of play-services-auth say that there is a major breaking change: they removed Credentials API! (https://developers.google.com/android/guides/releases#february_15_2024)
The settings.gradle of this plugin I see it depends on play-services-auth 20.7.0 (

flutter_smart_auth/android/build.gradle

Line 56 in be97b1b

implementation 'com.google.android.gms:play-services-auth:20.7.0'

)

I guess 21 is preferred over 20.7 during compilation, so no wonder why those classes mentioned in the error log can not be found.

This is why I think this is worthy of a bug report for smart_auth: can you please support the new Credential Manager API?

[Shub0327]

Did you implemented the Credential Manager API?

[sagnik-sanyal]

Hi @Tkko @gourgouris i am ready to take up this issue but before starting i want some more info about that with the latest version we get something known as GetPhoneNumberHintIntentRequest.builder() which is completely different from the previous versions, whats you take on this ? Like i want to know your views on this

Edit i am taking about this version implementation 'com.google.android.gms:play-services-auth:21.2.0'

[mohamedshasho]

Same issue:

R8 Missing Classes Error in Release Build: Google Play Services Credentials API

Flutter Version

Flutter 3.24.3 • channel stable • https://github.com/flutter/flutter.git
Framework • revision 2663184aa7 (6 days ago) • 2024-09-11 16:27:48 -0500
Engine • revision 36335019a8
Tools • Dart 3.5.3 • DevTools 2.37.3

Error Log

ERROR: Missing classes detected while running R8. Please add the missing classes or apply additional keep rules that are generated in build/app/outputs/mapping/release/missing_rules.txt.

Missing class com.google.android.gms.auth.api.credentials.Credential$Builder (referenced from: com.google.android.gms.auth.api.credentials.Credential fman.ge.smart_auth.SmartAuthPlugin.maybeBuildCredential(io.flutter.plugin.common.MethodCall, io.flutter.plugin.common.MethodChannel$Result))
Missing class com.google.android.gms.auth.api.credentials.Credential (referenced from: com.google.android.gms.auth.api.credentials.Credential fman.ge.smart_auth.SmartAuthPlugin$onGetCredentialRequest$1.$credential and 13 other contexts)
Missing class com.google.android.gms.auth.api.credentials.CredentialPickerConfig$Builder (referenced from: void fman.ge.smart_auth.SmartAuthPlugin.requestHint(io.flutter.plugin.common.MethodCall, io.flutter.plugin.common.MethodChannel$Result))
Missing class com.google.android.gms.auth.api.credentials.CredentialPickerConfig (referenced from: void fman.ge.smart_auth.SmartAuthPlugin.requestHint(io.flutter.plugin.common.MethodCall, io.flutter.plugin.common.MethodChannel$Result))
Missing class com.google.android.gms.auth.api.credentials.CredentialRequest$Builder (referenced from: void fman.ge.smart_auth.SmartAuthPlugin.getCredential(io.flutter.plugin.common.MethodCall, io.flutter.plugin.common.MethodChannel$Result))
Missing class com.google.android.gms.auth.api.credentials.CredentialRequest (referenced from: void fman.ge.smart_auth.SmartAuthPlugin.getCredential(io.flutter.plugin.common.MethodCall, io.flutter.plugin.common.MethodChannel$Result))
Missing class com.google.android.gms.auth.api.credentials.Credentials (referenced from: void fman.ge.smart_auth.SmartAuthPlugin.deleteCredential(io.flutter.plugin.common.MethodCall, io.flutter.plugin.common.MethodChannel$Result))
Missing class com.google.android.gms.auth.api.credentials.CredentialsClient (referenced from: void fman.ge.smart_auth.SmartAuthPlugin.deleteCredential(io.flutter.plugin.common.MethodCall, io.flutter.plugin.common.MethodChannel$Result))