Cannot resolve symbol '?attr/actionBarSize' after updating Android Studio from 2.3 to 3.0 for buildToolsVersion '26.0.2'

Question

After updating Android Studio from 2.3 to 3.0 I changed buildToolsVersion from 26.0.0 to 26.0.2 and after then I am getting this error:

Cannot reso         


        

Answer 1

Try to add this in your build.gradle(app) dependencies:

resolutionStrategy {
    force libraries.support.appCompat
    force libraries.support.design
    force 'com.android.support:support-utils:26.0.1'
    force 'com.android.support:support-compat:26.0.1'
}