MaterialDrawer: Error:Failed to resolve: Android-Iconics:iconics-core:unspecified

Since I reconfigured my code to use v4.0.0, Android Studio does not compile! Anything I try fails with that message:

Error:Failed to resolve: Android-Iconics:iconics-core:unspecified

Even when I try to clean the project I get:

Error:A problem occurred configuring project ':app'.
> Could not resolve all dependencies for configuration ':app:_debugCompile'.
   > Could not find Android-Iconics:iconics-core:unspecified.
     Searched in the following locations:
         https://jcenter.bintray.com/Android-Iconics/iconics-core/unspecified/iconics-core-unspecified.pom
         https://jcenter.bintray.com/Android-Iconics/iconics-core/unspecified/iconics-core-unspecified.jar
         file:/home/dan/DevAndroid/sdk/extras/android/m2repository/Android-Iconics/iconics-core/unspecified/iconics-core-unspecified.pom
         file:/home/dan/DevAndroid/sdk/extras/android/m2repository/Android-Iconics/iconics-core/unspecified/iconics-core-unspecified.jar
         file:/home/dan/DevAndroid/sdk/extras/google/m2repository/Android-Iconics/iconics-core/unspecified/iconics-core-unspecified.pom
         file:/home/dan/DevAndroid/sdk/extras/google/m2repository/Android-Iconics/iconics-core/unspecified/iconics-core-unspecified.jar
     Required by:
         CollecteRecouris:app:unspecified > com.mikepenz:fontawesome-typeface:4.4.0.1

This never happened before when using v3. But, I already updated all my code to use v4, today! This is what’s included in app’s build.gradle:

  compile 'com.mikepenz:materialdrawer:4.0.0'
  compile 'com.mikepenz:iconics-core:1.7.3'
  compile 'com.mikepenz:fontawesome-typeface:4.4.0.1'