Build failed: Deprecated Gradle features

[fuadreza]

Hello,

I've been encountered flutter build error using code magic. I run the build with command:

flutter build appbundle --release --build-name=$APP_VERSION --build-number=$LATEST_GOOGLE_PLAY_BUILD_NUMBER

and stop with this error

[        ] BUILD FAILED in 1m 50s
[        ] Deprecated Gradle features were used in this build, making it incompatible with Gradle 8.0.
[        ] You can use '--warning-mode all' to show the individual deprecation warnings and determine if they come from your own scripts or plugins.
[        ] See https://docs.gradle.org/7.3.3/userguide/command_line_interface.html#sec:command_line_warnings
[        ] 204 actionable tasks: 204 executed
[        ] Watched directory hierarchies: []
[ +683 ms] Running Gradle task 'bundleRelease'... (completed in 112.7s)
[   +7 ms] "flutter appbundle" took 113,087ms.
[   +6 ms] Gradle task bundleRelease failed with exit code 1

But if I build that on my local machine, it works fine. I also check the Gradle using command:

./gradlew --warning-mode all

and return something like this:

> Configure project :share_plus
Subproject ':share_plus' has location '/Users/fuadrezapahlevi/Documents/Development/Flutter/flutter/.pub-cache/hosted/pub.dartlang.org/share_plus-6.1.0/android' which is outside of the project root. This behaviour has been deprecated and is scheduled to be removed in Gradle 8.0. Consult the upgrading guide for further information: https://docs.gradle.org/7.3.3/userguide/upgrading_version_7.html#deprecated_flat_project_structure

> Configure project :url_launcher_android
Subproject ':url_launcher_android' has location '/Users/fuadrezapahlevi/Documents/Development/Flutter/flutter/.pub-cache/hosted/pub.dartlang.org/url_launcher_android-6.0.17/android' which is outside of the project root. This behaviour has been deprecated and is scheduled to be removed in Gradle 8.0. Consult the upgrading guide for further information: https://docs.gradle.org/7.3.3/userguide/upgrading_version_7.html#deprecated_flat_project_structure

How am I supposed to do with this? Thank you..

[himesh-cm]

Hi @fuadreza, Can you please share the build id so I can further look into your query?

[fuadreza]

Ok, after I upgrade my flutter and fix deprecated code and now the build success.

I'm just thinking if we can still use the old version of flutter to make the build run.

[fuadpahlevi-jubelio]

Hi @himesh-cm, is there anything I can do to lock flutter version? I don't want to upgrade my flutter version at the moment.

Thanks

[dtrdic]

hey @fuadreza there is a Flutter Version Management (FVM) tool available that allows you to easily select the desired Flutter version specified in your FVM configuration file. You can download the FVM package from here https://fvm.app/docs/getting_started/overview/

This will ensure that the build machine will always use the Flutter version specified in your FVM configuration.

Check more about setting flutter version HERE

[fuadreza]

@dtrdic Thanks for the answer. But I manage to lock the flutter version in codemagic.yaml

[dtrdic]

Gj, @fuadreza i'm glad that it works for you:) can you share what modifications have you done so we can mark it as the answer for other users?

[fuadreza]

Hi @dtrdic,
After further checking, my problem happen because some of my library is using deprecated jcenter() inside android build.gradle file. Somehow this makes codemagic to fails when building the android app.

What you can do to check is to run ./gradlew --warning-mode all inside android folder in your flutter project

This is some example of the warning in deprecated:

The RepositoryHandler.jcenter() method has been deprecated. This is scheduled to be removed in Gradle 8.0. JFrog announced JCenter's sunset in February 2021. 
Use mavenCentral() instead. Consult the upgrading guide for further information: https://docs.gradle.org/7.3.3/userguide/upgrading_version_6.html#jcenter_deprecation
        at build_5gkwqxn2cv7n6v2imlk5mynyc$_run_closure1$_closure2.doCall(/Users/xxx/.pub-cache/git/presentation-displays-b6bbe5c7163679298340920f793c72814c40d611/android/build.gradle:8)
        (Run with --stacktrace to get the full stack trace of this deprecation warning.)

What I do is:
Fork that library and then change jcenter() to mavenCentral(). Change the library version in pubspec.yaml to use my forked version of the library.