Need both camel-kafka-starter & camel-kafka in Spring Boot app?

[Ron Cecchini]

Does it make sense that I would need both camel-kafka-starter and camel-kafka 
in my Camel 3.0 / Spring Boot 2.2.1 app?

I thought the *-starter would be enough, but without the camel-kafka dependency 
my Kafka consumer throws a:

java.lang.NoClassDefFoundError: 
org/apache/kafka/clients/consumer/ConsumerRebalanceListener

FWIW, my component config is pretty bare bones:

from("kafka:{{kafka.topic.in}}?brokers={{kafka.brokers}}").log("got: ${body}");

Thanks.