Beta by Crashlytics - Package appears to be corrup

Question

I recently developed an app for a client and now have to share it on Crashlytics for a Beta. I did this many times in the past but with this app, there's a problem.

When I upload my app on Crashlytics Studio's plugin, there's no error. The email is correctly delivered to testers.

But at the end of the installation, it says "The package appears to be corrupted".

This is the first time I see this and I don't know what to do.

I try with all this type of APK: - debug (unsigned) - release (unsigned) - release (signed)

None of it works.

Here's my build.gradle :

    buildscript {
    repositories {
        maven { url 'https://maven.fabric.io/public' }
    }

    dependencies {
        // These docs use an open ended version so that our plugin
        // can be updated quickly in response to Android tooling updates

        // We recommend changing it to the latest version from our changelog:
        // https://docs.fabric.io/android/changelog.html#fabric-gradle-plugin
        classpath 'io.fabric.tools:gradle:1.24.1'
    }
}

apply plugin: 'com.android.application'
apply plugin: 'kotlin-android'
apply plugin: 'kotlin-android-extensions'
apply plugin: 'io.fabric'

repositories {
    maven { url 'https://maven.fabric.io/public' }
    maven { url "https://jitpack.io" }
}

android {

    compileSdkVersion 26
    buildToolsVersion "26.0.1"

    defaultConfig {
        applicationId "com.xxxxxxx"
        minSdkVersion 15
        targetSdkVersion 26
        versionCode 3
        versionName "0.1.3"
        testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
        vectorDrawables.useSupportLibrary = true
        renderscriptSupportModeEnabled = true
    }
    buildTypes {
        release {
            minifyEnabled = true
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
            signingConfig signingConfigs.release
        }
    }
}

dependencies {
    implementation fileTree(dir: 'libs', include: ['*.jar'])

    /**
     * SUPPORT LIBS
     */
    implementation 'com.android.support:appcompat-v7:26.0.2'
    implementation 'com.android.support:recyclerview-v7:26.0.2'
    implementation 'com.android.support:design:26.0.2'
    implementation 'com.android.support.constraint:constraint-layout:1.0.2'
    implementation 'com.android.support:support-vector-drawable:26.0.2'

    /**
     * KOTLIN
     */
    implementation "org.jetbrains.kotlin:kotlin-stdlib-jre7:$kotlin_version"

    /**
     * UNIT TESTS
     */
    testImplementation 'junit:junit:4.12'
    androidTestImplementation('com.android.support.test.espresso:espresso-core:3.0.1', {
        exclude group: 'com.android.support', module: 'support-annotations'
    })

    /**
     * HTTP
     */
    implementation 'com.squareup.retrofit2:retrofit:2.3.0'
    implementation "com.squareup.retrofit2:converter-gson:2.3.0"
    implementation "com.squareup.retrofit2:adapter-rxjava:2.3.0"
    implementation 'com.squareup.okhttp3:logging-interceptor:3.8.0'

    /**
     * INJECTION LIB
     */
    implementation 'com.jakewharton:butterknife:8.8.1'
    annotationProcessor 'com.jakewharton:butterknife-compiler:8.8.1'

    /**
     * COMPONENT LIBS
     */
    implementation('com.mikepenz:fastadapter:2.6.3@aar') {
        transitive = true
    }
    implementation 'com.mikepenz:fastadapter-commons:2.6.3@aar'
    implementation 'com.mikepenz:fastadapter-extensions:2.6.3@aar'

    /**
     * IMAGE LOADING/CACHING/EDITING LIBS
     */
    implementation 'com.github.bumptech.glide:glide:4.1.1'
    annotationProcessor 'com.github.bumptech.glide:compiler:4.1.1'
    implementation 'com.makeramen:roundedimageview:2.3.0'

    /**
     * PLAYERS VIDEO/MUSIC
     */
    implementation 'com.google.android.exoplayer:exoplayer:r2.0.0'
    implementation 'com.dailymotion.dailymotion-sdk-android:sdk:0.1.12'

    /**
     * EVENTBUS
     */
    implementation 'org.greenrobot:eventbus:3.0.0'

    /**
     * Overscroll
     */
    implementation 'com.scwang.smartrefresh:SmartRefreshLayout:1.0.3'
    implementation 'com.scwang.smartrefresh:SmartRefreshHeader:1.0.3'

    /**
     * FABRIC/CRASHLYTICS
     */
    implementation('com.crashlytics.sdk.android:crashlytics:2.6.8@aar') {
        transitive = true
    }
}

How can I solve it?

Answer 1

Use Build APK(s) option instead of Run! I also recommend to clean the project first.

Answer 2

Since Android Studio 3.0, I have the exact same problem if I try to upload an apk via the user interface.

For now, you will have to use the command line in order to upload an apk, as the documentation says.

./gradlew assembleDebug crashlyticsUploadDistributionDebug

I hope this will help !

Answer 3

i answered to a similar question here

For me the solution was to downgrade gradle from version 3.0.0 (introduced with Android Studio 3) to 2.3.3 (previous version). I made this by replacing this line in the project .gradle file:

    buildscript {
    repositories {
        ...
    }
    dependencies {
        classpath 'com.android.tools.build:gradle:3.0.0'
        ...
    }
}

With:

    buildscript {
    repositories {
        ...
    }
    dependencies {
        classpath 'com.android.tools.build:gradle:2.3.0'
        ...
    }
}

After a clen and build i was able to upload my app to Beta and install it with no problem.