gradle - flutter.buildMode = release显示未使用的属性

Question

更新我的依赖后，例如cloud_firestore，firebase_auth，fluttertoast以及gradle和android studio ...
我已经运行了flutter clean，然后flutter build apk-v
它没有工作...
我将稳定版本切换到了主版本，但仍然没有改变相同的问题。
那是我的日志的一部分:

C:\sdk\flutter\.pub-cache\hosted\pub.dartlang.org\cloud_firestore-0.9.13+1\android\src\main\java\io\flutter\plugins\fire
base\cloudfirestore\CloudFirestorePlugin.java:627: warning: [deprecation] setTimestampsInSnapshotsEnabled(boolean) in
Builder has been deprecated
[   +4 ms]             builder.setTimestampsInSnapshotsEnabled(
[   +1 ms]                    ^
[ +299 ms] Note:
C:\sdk\flutter\.pub-cache\hosted\pub.dartlang.org\cloud_firestore-0.9.13+1\android\src\main\java\io\flutter\plugins\fire
base\cloudfirestore\CloudFirestorePlugin.java uses unchecked or unsafe operations.
[   +3 ms] Note: Recompile with -Xlint:unchecked for details.
[   +1 ms] 1 warning
[   +3 ms] Note:
C:\sdk\flutter\.pub-cache\hosted\pub.dartlang.org\firebase_core-0.3.4\android\src\main\java\io\flutter\plugins\firebase\
core\FirebaseCorePlugin.java uses unchecked or unsafe operations.
[   +2 ms] Note: Recompile with -Xlint:unchecked for details.
[   +8 ms]
C:\sdk\flutter\.pub-cache\hosted\pub.dartlang.org\fluttertoast-3.0.4\android\src\main\java\io\github\ponnamkarthik\toast
\fluttertoast\FluttertoastPlugin.java:84: warning: [deprecation] getDrawable(int) in Resources has been deprecated
[   +7 ms]                     shapeDrawable = ctx.getResources().getDrawable(R.drawable.toast_bg);
[   +4 ms]                                                       ^
[   +4 ms] 1 warning
[+1703 ms] > Task :app:packageRelease FAILED
[ +240 ms]          *********************************************************
[  +70 ms] WARNING: This version of cloud_firestore will break your Android build if it or its dependencies aren't
compatible with AndroidX.
[   +5 ms]          See [https://flutter.dev/docs/development/packages-and-plugins/androidx-compatibility][here] for more information on the problem and how to fix it.
[   +2 ms]          This warning prints for all Android build failures. The real root cause of the error may be
unrelated.
[   +1 ms]          *********************************************************
[   +1 ms] 108 actionable tasks: 102 executed, 6 up-to-date
[ +744 ms] Running Gradle task 'assembleRelease'... (completed in 412,9s, longer than expected)
[   +9 ms] "flutter apk" took 597 734ms.
[  +11 ms] "flutter apk" took 597 734ms.
Gradle task assembleRelease failed with exit code 1

Answer 1

您必须更新到AndroidX，还必须更新Firebase库。

https://flutter.dev/docs/development/packages-and-plugins/androidx-compatibility

查看日志的这一部分:

[+240毫秒] ************************************************* ************
[+70毫秒]警告:如果该版本的cloud_firestore或其依赖项不正确，它将破坏您的Android构建
与AndroidX兼容。
[+5毫秒]有关此问题及其解决方法的更多信息，请参见[https://flutter.dev/docs/development/packages-and-plugins/androidx-compatibility][here]。
[+2毫秒]此警告将针对所有Android构建失败打印。错误的真正根本原因可能是
无关。
[+1毫秒] ************************************************* ************