build.gradle

plugins {
    ...
}

android {
    ...
}

dependencies {
    ...
    def camerax_version = "1.2.0-beta02"
    def ml_kit_vision_face_detection_version = "17.1.0" 
    ...
    
    implementation "com.google.android.gms:play-services-mlkit-face-detection:${ml_kit_vision_face_detection_version}
    
    ...

    implementation "androidx.camera:camera-core:${camerax_version}"
    implementation "androidx.camera:camera-camera2:${camerax_version}"
    implementation "androidx.camera:camera-lifecycle:${camerax_version}"
    implementation "androidx.camera:camera-view:${camerax_version}"
    implementation "androidx.camera:camera-mlkit-vision:${camerax_version}"
    implementation "androidx.camera:camera-extensions:${camerax_version}"
    
    ...
}