CODEWITHSUNDEEP
androidandroid-multidex
Eselfar
Eselfar

Reputation: 3869

Multidex Could not find class

As I have reached the 64K Methods limit I have activated Multidex in my app.

I'm testing on 2 different devices:

Everything works find on the first one but on the second one I get these errors and the entire app freeze (doesn't crash).

Errors

E/dalvikvm: Could not find class 'android.app.job.JobScheduler', referenced from method com.google.android.gms.internal.zzcfr.zzazv
E/dalvikvm: Could not find class 'android.app.job.JobScheduler', referenced from method com.google.android.gms.internal.zzcfr.zzs
E/dalvikvm: Could not find class 'android.graphics.drawable.RippleDrawable', referenced from method android.support.v7.widget.AppCompatImageHelper.hasOverlappingRendering

I followed the documentation so:

In my gradle I have added:

In my custom Application class

  @Override
  protected void attachBaseContext(Context base) {
     super.attachBaseContext(base);
     MultiDex.install(this);
  }

To try to fix the issue I've created a multidex-config.txt file that is in the same folder as the build.gradle where it is referenced.

multidex-config.txt (EDITED)

android/app/job/JobScheduler.class
android/support/v4/widget/DrawerLayout.class
android/graphics/drawable/RippleDrawable.class

then in the gradle:

buildTypes {

    debug {
        multiDexKeepFile file('multidex-config.txt')
        //...
    }

    debugStaging {
        initWith(buildTypes.debug)
        //...
    }

    release {
        multiDexKeepFile file('multidex-config.txt')
        minifyEnabled false
        //...
    }
}

I think I've missed something. Any clue?

EDIT

Gradle file

android {
    compileSdkVersion 26

    defaultConfig {
        //...
        minSdkVersion 16
        targetSdkVersion 25
        multiDexEnabled true
        versionCode 10
        //...
    }

    buildTypes {
        //...
        debug {
            //...
            multiDexKeepFile file('multidex-config.txt')
        }

        debugStaging {
            initWith(buildTypes.debug)
            //...
        }

        release {
            //...
            multiDexKeepFile file('multidex-config.txt')
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
            //...
        }
    }

    dexOptions {
        maxProcessCount 6
        javaMaxHeapSize "2g"
        jumboMode true
    }
    //...
}

ext {
    //...
}

dependencies {
    //...
    implementation 'com.android.support:multidex:1.0.2'
   //...
}

// Required by Firebase
apply plugin: 'com.google.gms.google-services'

Upvotes: 4

Views: 2505

Answers (1)

Arnab Kar
Arnab Kar

Reputation: 1167

The format of the multidex-config.txt seems different from the one described in Android Documentation.

It seems like the -keep should not be here. Its part of multiDexKeepProguard not multiDexKeepFile

The format should be 

com/example/MyClass.class
com/example/MyOtherClass.class

Since the Alps A733 is having API 19, (any app having API level less than 20), your app crashes with the error java.lang.NoClassDefFoundError.

Upvotes: 1

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