After upgrading to flutter 1.12, try flutter build apk --release build out a package apk
However, it reported the following error:
FAILURE: Build failed with an exception.
* What went wrong:
Execution failed for task ':sms:verifyReleaseResources'.
> A failure occurred while executing com.android.build.gradle.internal.tasks.Workers$ActionFacade
> Android resource linking failed
C:\Users\Administrator\.gradle\caches\transforms-2\files-2.1\a9c96bd680f706d3c9af22cf8b972513\core-1.0.0\res\values\values.xml:57:5-88:25: AAPT: error: resource android:attr/fontVariationSettings not found.
C:\Users\Administrator\.gradle\caches\transforms-2\files-2.1\a9c96bd680f706d3c9af22cf8b972513\core-1.0.0\res\values\values.xml:57:5-88:25: AAPT: error: resource android:attr/ttcIndex not found.
* Try:
Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output. Run with --scan to get full insights.
* Get more help at https://help.gradle.org
BUILD FAILED in 1m 52s
Looks very scary, however, to find the key factors like, look at this line
Execution failed for task ':sms:verifyReleaseResources'.
It seems likely, and this "sms" about
The automatic sms 18 September there will be no further updates over
Attached link: https://pub.dev/packages/sms/versions
Remove dependence sms directly replace the corresponding functions with their plug-ins. . .
problem solved. . .