The File build.gradle [Projetct_Root]/android/app, need to have only one buildTypes. A simple duplicate ocorrence dont cause any error but cause this problem. I remove the duplicated item and the problem is solved.
buildTypes {
release {
// TODO: Add your own signing config for the release build.
// Signing with the debug keys for now,
// so `flutter run --release` works.
signingConfig = signingConfigs.debug
}
}
thanks a lot Akshay Gupta,