Removing unused resources requires unused code shrinking to be turned on

After upgrading to flutter1.12

flutter build apk --release packed encounter the following error apk

FAILURE: Build failed with an exception.

* Where:
Build file 'C:\Users\Administrator\Downloads\Compressed\inin\android\build.gradle' line: 37

* What went wrong:
A problem occurred evaluating root project 'android'.
> A problem occurred configuring project ':app'.
   > Removing unused resources requires unused code shrinking to be turned on. See http://d.android.com/r/tools/shrink-resources.html for more information.

核心信息：Removing unused resources requires unused code shrinking to be turned on

In fact, means that either

shrinkResources true
minifyEnabled true

Or

 shrinkResources false
 minifyEnabled false

Both consistent on the line

First read

 shrinkResources false
 minifyEnabled false

Success finally build apk