The final dependencies block of your build.gradle after migration

build.gradle

apply from: 'gradle/var_definition.gradle'
apply from: 'gradle/var_def_lib.gradle'
dependencies {
    implementation fileTree(include: ['*.jar'], dir: 'libs')
	implementation "androidx.appcompat:appcompat:${androidxAppcompat_appcompat_Version}"
	implementation "androidx.recyclerview:recyclerview:${androidxRecyclerview_recyclerview_Version}"
	implementation "androidx.cardview:cardview:${androidxCardview_cardview_Version}"
	implementation "com.google.android.material:material:${comGoogleAndroidMaterial_material_Version}"
	implementation "androidx.room:room-runtime:${androidxRoom_roomRuntime_Version}"
	implementation "androidx.constraintlayout:constraintlayout:${androidxConstraintlayout_constraintlayout_Version}"
	annotationProcessor "androidx.room:room-compiler:${androidxRoom_roomCompiler_Version}"
	kapt "androidx.room:room-compiler:${androidxRoom_roomCompiler_Version}"
	implementation "androidx.lifecycle:lifecycle-extensions:${androidxLifecycle_lifecycleExtensions_Version}"
	androidTestImplementation "androidx.arch.core:core-testing:${androidxArchCore_coreTesting_Version}"
	implementation "androidx.constraintlayout:constraintlayout:${androidxConstraintlayout_constraintlayout_Version}"

	// (Java only)
    implementation "androidx.work:work-runtime:$androidxWork_workRuntime_Version"
    // Kotlin + coroutines
    implementation "androidx.work:work-runtime-ktx:$androidxWork_workRuntimeKtx_Version"
    // optional - Test helpers
    androidTestImplementation "androidx.work:work-testing:$androidxWork_workTesting_Version"

    implementation "androidx.paging:paging-runtime:${androidxPaging_pagingRuntime_Version}"
	testImplementation "androidx.paging:paging-common:${androidxPaging_pagingCommon_Version}"
	implementation "org.jetbrains.kotlinx:kotlinx-coroutines-core:${orgJetbrainsKotlinx_kotlinxCoroutinesCore_Version}"
	implementation "org.jetbrains.kotlinx:kotlinx-coroutines-android:${orgJetbrainsKotlinx_kotlinxCoroutinesAndroid_Version}"
    //Stetho just to check
    //http://facebook.github.io/stetho/
    //https://code.tutsplus.com/tutorials/debugging-android-apps-with-facebooks-stetho--cms-24205
	implementation"com.facebook.stetho:stetho:${comFacebookStetho_stetho_Version}"
    //Stetho just to check
    //http://facebook.github.io/stetho/
    //https://code.tutsplus.com/tutorials/debugging-android-apps-with-facebooks-stetho--cms-24205
	implementation"com.facebook.stetho:stetho-okhttp3:${comFacebookStetho_stethoOkhttp3_Version}"
    // EventBus
	implementation"org.greenrobot:eventbus:${orgGreenrobot_eventbus_Version}"
    // Retrofit and co
	implementation"com.squareup.retrofit2:retrofit:${comSquareupRetrofit2_retrofit_Version}"
    // Retrofit and co
	implementation"com.squareup.retrofit2:converter-moshi:${comSquareupRetrofit2_converterMoshi_Version}"
    // Retrofit and co
	implementation"com.squareup.okhttp3:okhttp:${comSquareupOkhttp3_okhttp_Version}"
    // Retrofit and co
	implementation"com.squareup.okhttp3:logging-interceptor:${comSquareupOkhttp3_loggingInterceptor_Version}"
    // Retrofit and co
	implementation"com.squareup.okio:okio:${comSquareupOkio_okio_Version}"
	implementation "net.danlew:android.joda:${netDanlew_androidJoda_Version}"
    // Mockito
	testImplementation"org.mockito:mockito-core:${orgMockito_mockitoCore_Version}"
	androidTestImplementation "org.mockito:mockito-android:${orgMockito_mockitoAndroid_Version}"
	androidTestImplementation "androidx.test:runner:${androidxTest_runner_Version}"
	androidTestImplementation "androidx.test:rules:${androidxTest_rules_Version}"
	androidTestImplementation "androidx.test.espresso:espresso-core:${androidxTestEspresso_espressoCore_Version}"
	androidTestImplementation "androidx.test.espresso:espresso-intents:${androidxTestEspresso_espressoIntents_Version}"
	androidTestImplementation "androidx.test.espresso:espresso-contrib:${androidxTestEspresso_espressoContrib_Version}"
	implementation "androidx.test.espresso:espresso-idling-resource:${androidxTestEspresso_espressoIdlingResource_Version}"
    // Kotlin
	implementation"org.jetbrains.kotlin:kotlin-stdlib-jdk7:${orgJetbrainsKotlin_kotlinStdlibJdk7_Version}"
	implementation "com.google.firebase:firebase-core:${comGoogleFirebase_firebaseCore_Version}"
    //Crashlytics
    implementation("com.crashlytics.sdk.android:crashlytics:${comCrashlyticsSdkAndroid_crashlytics_Version}") {
        transitive = true;
    }
    //Junit elements    
    androidTestImplementation "junit:junit:${junit_junit_Version}" 
    testImplementation "junit:junit:${junit_junit_Version}"
}