build.gradle

    implementation "io.reactivex.rxjava2:rxjava:2.2.9"                                    //RxJava
    implementation 'io.reactivex.rxjava2:rxandroid:2.1.1'                                 //RxAndroid
    implementation 'org.jetbrains.kotlinx:kotlinx-coroutines-core:1.2.0'                  //kotlin coroutines

    //Retrofit
    implementation 'com.squareup.retrofit2:retrofit:2.5.0'                                //retrofit
    implementation "com.squareup.retrofit2:converter-gson:$retrofitVersion"               //retrofit gson converter.
    
    implementation 'com.google.code.gson:gson:2.8.5'                                      //gson
    implementation 'joda-time:joda-time:2.10.2'                                           //joda-time
    implementation 'com.jakewharton.timber:timber:4.7.1'                                  //timber
    implementation 'com.squareup.picasso:picasso:2.71828'                                 //picasso

    implementation "com.squareup.okhttp3:logging-interceptor:$okhttpInterceptorVersion"

    implementation "androidx.lifecycle:lifecycle-extensions:$lifecycleExtension"
    implementation "androidx.lifecycle:lifecycle-viewmodel-ktx:$lifecycleExtension"      //viewModelScope
    implementation "com.jakewharton.retrofit:retrofit2-kotlin-coroutines-adapter:$coroutineAdapterVersion"
    implementation "androidx.paging:paging-runtime:$pagingVersion"

    implementation "androidx.room:room-runtime:$room_version"
    implementation "androidx.room:room-ktx:$room_version"
    kapt "androidx.room:room-compiler:$room_version" // use kapt for Kotlin
        
    implementation "com.facebook.fresco:fresco:$frescoVersion"
    implementation "com.mikhaellopez:circularimageview:$circularImageViewVersion"
    implementation "com.jakewharton.timber:timber:$timberVersion"
    implementation "joda-time:joda-time:$jodaVersion"

    // Dagger
    implementation "com.google.dagger:dagger:$daggerVersion"
    kapt "com.google.dagger:dagger-compiler:$daggerVersion"
    compileOnly 'javax.annotation:javax.annotation-api:1.3.2'

    debugImplementation 'com.amitshekhar.android:debug-db:1.0.6'
    
    /*
    ext.kotlin_version = '1.3.31'
    ext.daggerVersion = '2.22.1'
    ext.lifecycleExtension = '2.2.0-alpha01'
    ext.frescoVersion = "1.13.0"
    ext.retrofitVersion = "2.5.0"
    ext.gsonVersion = "2.8.5"
    ext.room_version = '2.1.0-beta01'
    ext.coroutineAdapterVersion = "0.9.2"
    ext.okhttpInterceptorVersion = "3.11.0"
    ext.circularImageViewVersion = "3.2.0"
    ext.timberVersion = "4.7.1"
    ext.jodaVersion = "2.10.2"
    ext.pagingVersion = "2.1.0"
    */
    
    //dagger compileOnly https://mvnrepository.com/artifact/javax.annotation/javax.annotation-api