Flutter Release apk won't run or open on android devices

Question

I have built a release android apk file, conceived for a size of 7.9 MB. I manage to install it on my android device, but not to open it because it crashes. When i use flutter run --release it still does not open and detects no errors.

How can I solve that problem? Thank you for your help.

Note: I have found several questions close to mine, but they have an error or are not entirely similar to mine. As a consequence the solution given do not work on my case.

Here is some of my build.gradle

android {
    compileSdkVersion 28

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

    lintOptions {
        disable 'InvalidPackage'
        checkReleaseBuilds false
    }

    defaultConfig {
        // TODO: Specify your own unique Application ID (https://developer.android.com/studio/build/application-id.html).
        applicationId "com.misteref.mykamus"
        minSdkVersion 16
        targetSdkVersion 28
        versionCode flutterVersionCode.toInteger()
        versionName flutterVersionName
        testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
    }

   signingConfigs {
       release {
           keyAlias keystoreProperties['keyAlias']
           keyPassword keystoreProperties['keyPassword']
           storeFile file(keystoreProperties['storeFile'])
           storePassword keystoreProperties['storePassword']
       }
   }
   buildTypes {
       release {
           signingConfig signingConfigs.release
           useProguard true
           proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
           signingConfig signingConfigs.release
       }
   }
}

it sounds like your releasebuild does not include all ABIs, so the architecture that your device needs does not exist in the build. Im not a flutter expert though — Joachim Haglund, Oct 14 '19 at 12:38
@AnkitMahadik yes, all the steps for build release apk is done. — Adam Theory, Oct 14 '19 at 12:39
Can you show us some signin configue of your project so it will be easy to track problem — Ankit Mahadik, Oct 14 '19 at 12:41
@JoachimHaglund i have use this flutter build apk --split-per-abi, it's build 2 apk, none of them work. 1 apk cant install and the last 1 can install but cant open — Adam Theory, Oct 14 '19 at 12:48
@AnkitMahadik what example that i can post here? some code that i put on build.gradle or what? — Adam Theory, Oct 14 '19 at 12:49
maybe this can help https://www.reddit.com/r/FlutterDev/comments/acdruw/flutter_build_apk_release_only_works_on_arm/ — Joachim Haglund, Oct 14 '19 at 12:50
@ankitmahadik i have post it on the question post. you can check on top. — Adam Theory, Oct 14 '19 at 13:03
@ikben i have use it. the app still crash when open in my android device — Adam Theory, Oct 14 '19 at 14:51

Amir · Answer 1 · 2019-10-14T13:23:46.000

1

in app level build.gradle set minifyEnabled and shrinkResources to false or use progaurd if you need this two be true

buildTypes {
        release {
            signingConfig signingConfigs.release
            minifyEnabled true
            shrinkResources true
            useProguard true
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
        }
    }

edited Oct 14 '19 at 13:23

answered Oct 14 '19 at 12:49

Amir

2,225
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where i have to put it in build.gradle? – Adam Theory Oct 14 '19 at 13:04
buildTypes => release – Amir Oct 14 '19 at 13:21
i have tried this and cant built. it's give an androidx error – Adam Theory Oct 14 '19 at 14:31
so add android x support to your project look at this `https://flutter.dev/docs/development/androidx-migration` – Amir Oct 14 '19 at 17:25
try this method: remove `Proguard` and `proguardFiles` lines and set `minifyEnabled` and `shrinkResources` to `false` then build your project and check its work or not? – Amir Oct 14 '19 at 18:43
it's work when i build and install. but still crash when i open the app on android device or emulator. – Adam Theory Oct 15 '19 at 00:43
yeah I know what are you saying but try this way and tell if it works – Amir Oct 15 '19 at 11:33
i have try it. still crash when open the app – Adam Theory Oct 15 '19 at 11:55

score 1 · Answer 2 · answered Oct 14 '19 at 13:25

1

To expand on @Joachim Haglund's comment

update your gradle file with the following. All the builds will then be included in the aab file. (It's also worth checking what SDKs you have installed/require updating with Android Studio)

android {
    defaultConfig {
        //add the following
        ndk {
            abiFilters "x86", "x86_64", "armeabi", "armeabi-v7a", "arm64-v8a"
        }
    }
}

answered Oct 14 '19 at 13:25

F-1

2,887
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what are these errors? I can't help if you don't provide details. Did you check you have NDKs installed in android studio? – F-1 Oct 14 '19 at 14:39
i mean errors when i use flutter build apk --split-per-abi , but no errors when i use flutter build apk --release. but still, it can open the app in my android device – Adam Theory Oct 14 '19 at 14:51
why are you building apk individually instead of using the app bundle function? Are you building from Visual Studio Code or Android Studio, what happens when you build using the other application? – F-1 Oct 14 '19 at 15:32

score 0 · Answer 3 · answered Mar 26 '23 at 22:21

I was running into this issue with alternative resolution where, as described in this SO thread, my flutter app was able to run in release mode by adding the following dependency in my build.gradle file:

implementation 'androidx.work:work-runtime-ktx:2.7.1'

This fix is applicable if you see an error message like

Targeting S+ (version 31 and above) requires that one of FLAG_IMMUTABLE or FLAG_MUTABLE be specified when creating a PendingIntent.

Flutter Release apk won't run or open on android devices

3 Answers3