Flutterで非推奨のときのを細かく

FlutterFirebaseInstanceIDService.java:21: error: cannot find symbol
LocalBroadcastManager.getInstance(context).sendBroadcast(intent);
FlutterFirebaseInstanceIDService.java uses or overrides a deprecated API.
Note: Recompile with -Xlint:deprecation for details.

-Xlint:deprecation つければ詳細見えるとか言われるが・・・

どこにつけるの？

www.366service.com とか https://www.nuomiphp.com/eplan/ja/5f28635ed14f9455484616a2.html みたけど

android/build.gradle

subprojects {
    project.evaluationDependsOn(':app')

    // これでいいのかな？一応更に詳細は出た
    gradle.projectsEvaluated {
        tasks.withType(JavaCompile) {
            options.compilerArgs << "-Xlint:deprecation" << "-Xlint:unchecked"
        }
    }
}