flutter building appbundle in release mode

Question

I have built an app in flutter using android studio and am trying to release it on the play store.

According to https://flutter.dev/docs/deployment/android#reviewing-the-build-configuration, "Run flutter build appbundle (Running flutter build defaults to a release build.)"

However, when I try to upload this on the play console, I get the error message that "You uploaded an APK or Android App Bundle that was signed in debug mode. You need to sign your APK or Android App Bundle in release mode."

What should I do differently?

From my gradle.build:


def keystoreProperties = new Properties()
def keystorePropertiesFile = rootProject.file('key.properties')
if (keystorePropertiesFile.exists()) {
    keystoreProperties.load(new FileInputStream(keystorePropertiesFile))
}

android {
    compileSdkVersion 29

    sourceSets {
        main.java.srcDirs += 'src/main/kotlin'
    }

    lintOptions {
        disable 'InvalidPackage'
    }

    defaultConfig {
        // TODO: Specify your own unique Application ID (https://developer.android.com/studio/build/application-id.html).
        applicationId "com.rtterror.custom_snooze_alarm"
        minSdkVersion 16
        targetSdkVersion 29
        versionCode flutterVersionCode.toInteger()
        versionName flutterVersionName
    }

    signingConfigs {
        release {
            keyAlias keystoreProperties['keyAlias']
            keyPassword keystoreProperties['keyPassword']
            storeFile keystoreProperties['storeFile'] ? file(keystoreProperties['storeFile']) : null
            storePassword keystoreProperties['storePassword']
        }
    }

    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
        }
    }
}

Ole Pannier · Accepted Answer · 2021-07-26 19:02:32Z

31

Flutter has the option to build an appbundle:

flutter build appbundle

My reference is from this github project.

edited Jul 26, 2021 at 19:02

Ole Pannier

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answered Jul 26, 2021 at 13:36

frede1994

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Comments

abdiwan · Accepted Answer · 2021-01-09 08:10:55Z

22

Try modifying your buildTypes block.

buildTypes {
    release {
        signingConfig signingConfigs.release
    }
}

answered Jan 9, 2021 at 8:10

abdiwan

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1 Comment

Cee McSharpface Over a year ago

did this. now the build fails with the following error message from gradle:

Could not get unknown property 'release' for SigningConfig container of type org.gradle.api.internal.FactoryNamedDomainObjectContainer

Mike Dubs · Accepted Answer · 2021-10-20 03:53:03Z

17

Make sure you have your keystore file properly set up and referenced in "Android/key.properties". Here is the command to create the keystore: keytool -genkey -v -keystore ~/upload-keystore.jks -keyalg RSA -keysize 2048 -validity 10000 -alias upload

Then run flutter clean && flutter build appbundle --release

If you get the same error, then try this helpful walkthrough: https://medium.com/@psyanite/how-to-sign-and-release-your-flutter-app-ed5e9531c2ac

answered Oct 20, 2021 at 3:53

Mike Dubs

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1 Comment

Carmen DiMichele Over a year ago

Thanks @mike-dubs. following the link you added worked for me perfectly.

artemki2077 · Accepted Answer · 2023-11-16 18:37:29Z

3

add in 'android/app/build.gradle' your buildTypes block

buildTypes {
    release {
        signingConfig signingConfigs.release
    }
}

run flutter clean flutter pub get then flutter build appbundle --release

answered Nov 16, 2023 at 18:37

artemki2077

612 bronze badges

Comments

Fakhar Ilyas · Accepted Answer · 2022-02-15 07:04:22Z

2

you have debug in front of signingConfigs just change it to release

  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
        }
    }

answered Feb 15, 2022 at 7:04

Fakhar Ilyas

1279 bronze badges

Comments

Shubham Pandey · Accepted Answer · 2025-05-17 13:31:32Z

Now as we are using gradle.kts so we need to use the newer version of it.

Here is the details

inside build.gradle.kts

import java.util.Properties
import java.io.FileInputStream


val keystorePropertiesFile = rootProject.file("key.properties")
val keystoreProperties = Properties()
keystoreProperties.load(FileInputStream(keystorePropertiesFile))

android {

signingConfigs {
        create("release") {
            storeFile = file(keystoreProperties["storeFile"] as String)
            storePassword = keystoreProperties["storePassword"] as String
            keyAlias = keystoreProperties["keyAlias"] as String
            keyPassword = keystoreProperties["keyPassword"] as String
        }
    }

    buildTypes {
        release {
            signingConfig = signingConfigs.getByName("release")
        }
    }
}

Need to use this type then it will work.

Ihsan Ullah · Accepted Answer · 2025-01-31 16:27:57Z

0

let me explain little bit in BuildTypes section in release the line "signingConfig signingConfigs.debug" is used for debugging it create a dubugging apk

but when you want to create an apk or an appbundle for release you will change or also will add this line "signingConfig signingConfigs.release" so when you run command for creating apk file or appbundle it will be create for release

answered Jan 31 at 16:27

Ihsan Ullah

213 bronze badges

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