title: RoomDatabase_Impl does not exist
body: <p>I when try to implement a Room Database, I get the following error:</p>
  
  <pre><code>java.lang.RuntimeException: cannot find implementation for com.udacity.gradle.builditbigger.Database.HilarityUserDatabase. HilarityUserDatabase_Impl does not exist
                                                   at android.arch.persistence.room.Room.getGeneratedImplementation(Room.java:92)
  </code></pre>
  
  <p>I tried adding the relevant kotlin dependencies to my gradle file (shown below) but when I do, all of my Databinding classes that would normally be generated with any issues are now generating errors in my gradle console. Is there way for me to use the DataBinding library and the Room Pesistence Library?</p>
  
  <pre><code>apply plugin: 'kotlin-android'
  apply plugin: 'kotlin-android-extensions'
  apply plugin: 'kotlin-kapt'
  ...
  dependencies{
      kapt "android.arch.persistence.room:compiler:1.0.0"
  }
  </code></pre>