Adding dependencies

In your application's build.gradle, add the dependencies on AndroidX and Room.

GROOVY

buildscript {
    repositories {
      google()
      jcenter()
    }
    dependencies {
      classpath "com.android.tools.build:gradle:4.0.2"
    }
  }
 ...
  dependencies {
    ...
    implementation 'androidx.appcompat:appcompat:1.2.0'
    implementation "androidx.room:room-runtime:2.2.5"
  }

Next step: Instantiating the OTVDownloadManager