[Question] application id not match with the id config in the corresponding env file

[thaiquoctoanvn]

I have my .env like this

APP_NAME=DEV
APP_ID=au.com.myapp.dev

and my env.production like this

APP_NAME=PRO
APP_ID=au.com.myapp.pro

When I run the command flutter build apk --release on Android device I got the application id is au.com.myapp.dev but the app name is PRO. Can any help me explain what is the problem? Ii expect that the application id would be au.com.myapp.pro
My config in gradle likes this

apply from: project(':flutter_config').projectDir.getPath() + "/dotenv.gradle"
project.ext.envConfigFiles = [
        staging: ".env.staging",
        release: ".env.production",
        anothercustombuild: ".env",
]
android {
defaultConfig {
        applicationId project.env.get("APP_ID")
        versionCode project.env.get("VER_CODE").toInteger()
        versionName project.env.get("VER_NAME")
        minSdkVersion 24
        targetSdkVersion flutter.targetSdkVersion
        resValue "string", "build_config_package", "com.example.electronic_vhc"
    }
}