Error while merging dex Program type already present: android.support.v4.os.ResultReceiver$MyResultReceiver

Question

Error when merging the dex

following are the dependencies.

ext {
    anko_version=\'0.10.5\'
    support_lib=\'1.0.0-alpha1\'
    room_lib = \"1.1.0\         


        

Answer 1

This is what worked for me was Refactor -> Migrate to AndroidX option in Android Studio. This seemed to resolve any things I may have missed when trying to do the AndroidX migration one dependency at a time. https://developer.android.com/jetpack/androidx/migrate

Answer 2

I had the same problem.

Do not mix dependencies styles(androidx and com.android.support) in your project.

In your code try to replace

implementation "androidx.appcompat:appcompat:$support_lib"

with

implementation "com.android.support:appcompat-v7:$version_of_support_library"

A full list of dependencies migration you can find here .

I should use old style dependency because I needed WorkManager and according to official documentation WorkManager currently without AndroidX dependencies.

WorkManager classes are already in the androidx.work package, but currently depend on Support Library 27.1, and associated Arch component versions. Version of WorkManager with AndroidX dependencies will be released in the future.

Answer 3

add following lines on gradle.properties

android.useAndroidX=true
android.enableJetifier=true

and change your room dependencies on build.gradle(moudel:app)

implementation "androidx.room:room-runtime:2.0.0-alpha1"
annotationProcessor "androidx.room:room-compiler:2.0.0-alpha1"

Answer 4

Check the package which clashes with the com.android.support and exclude it from that package. For me, I was using androidx packages and also FCM, where there was a clash. So, this fixed for me:

implementation ('com.google.firebase:firebase-core:16.0.4') {
    exclude group: 'com.android.support'
}

Answer 5

for my instance i had upgraded from implementation 'com.github.bumptech.glide:glide:4.0.0 to implementation 'com.github.bumptech.glide:glide:4.7.1'

Answer 6

Migrate the dependencies to androidx dependencies. And in gradle.properties add the below lines (If not created already, create the file in root folder).

android.useAndroidX=true
android.enableJetifier=true

Hope this helps.