Android Studio build error - Multiple dex files define Landroid/support/v4/

Question

I am unable to build my project in Android Studio. I get the following error:

Error:Android Dex: [RaditazAndroid] Unable to execute DX
Error:Android Dex: [R         


        

Answer 1

For others wondering why this problem still persist even doing all other things suggested, This may help.

For me problem started when i added Glide library

dependencies {
  .........
  implementation 'com.github.bumptech.glide:glide:4.8.0'
  .........
}

and i had added already.

implementation 'com.android.support:design:26.1.0'

Which was contradicting with Glide support library somewhere.

Solution: Remove or downgrade your Glide support version.

 implementation 'com.github.bumptech.glide:glide:4.0.0'