Gradle error when using dependency for version 1.1.1

When adding the dependency for version 1.1.1, `compile 'com.firebaseui:firebase-ui-auth:1.1.1'`, the error "Failed to resolve: com.twitter.sdk.android:twitter:2.3.0" is encountered. Stack Overflow item http://stackoverflow.com/questions/41659272/errorfailed-to-resolve-com-twitter-sdk-androidtwitter2-3-0-android-studio does describe a couple of workarounds.