android mainfest file sync error

[yuanzhiying]

ERROR: The minSdk version should not be declared in the android manifest file. You can move the version from the manifest to the defaultConfig in the build.gradle file.
Remove minSdkVersion and sync project
Affected Modules: flutter_secure_storage

when i use this package in android project, sync error. The minSdkVersion should be declared in build.gradle file.