Error : Program type already present: android.support.design.widget.CoordinatorLayout$Behavior
It worked when I downgrade the support appcompat
gradle dependency, like follwing :
implementation 'com.android.support:appcompat-v7:27.0.2'
previously it was
implementation 'com.android.support:appcompat-v7:27.1.0'
OR
Also this can be fixed by just adding support design dependency
of version 27.1.0 or above to your app level build.gradle
as following :
implementation 'com.android.support:design:27.1.0'
I faced the same problem,
I added android support design dependencies to the app level build.gradle
Add following:
implementation 'com.android.support:design:27.1.0'
in build.gradle. Now its working for me.
It might be cause of a library, I faced it because of Glide.
It was
implementation 'com.github.bumptech.glide:glide:4.7.1'
So I added exclude group: "com.android.support"
And it becomes
implementation ('com.github.bumptech.glide:glide:4.7.1') {
exclude group: "com.android.support"
}