库版本11.2.0的firebase ProGuard错误（警告）

Question

我正在研究11.0.4 firebase库版本。今天我已经切换到最新版本：11.2.0，当我尝试构建发布版本（启用ProGuard）时，我收到错误：

Warning:com.google.android.gms.internal.zzbdo: can't find referenced method 'boolean isInstantApp(java.lang.String)' in library class android.content.pm.PackageManager
Warning:there were 1 unresolved references to library class members.
Warning:Exception while processing task java.io.IOException: Please correct the above warnings first.
Error:Execution failed for task ':app:transformClassesAndResourcesWithProguardForRelease'.
> Job failed, see logs for details

和gradle控制台：

Warning: there were 1 unresolved references to library class members.
         You probably need to update the library versions.
         (http://proguard.sourceforge.net/manual/troubleshooting.html#unresolvedlibraryclassmember)

Answer 1

我使用的是API 25（rev.3），在API 26中添加了isInstantApp方法。将targetSdkVersion更改为此版本重新解决了问题。

https://github.com/android/platform_frameworks_base/commit/31a16551910492321a6f7c291eb33e1458f39f0a#diff-a5f0b5ebe6a871aca1c5841bc0497538

Answer 2

对于那些不想开始使用运行时权限的人，你不需要增加targetSdkVersion，增加compileSdkVersion就足够了。