Eclipse scala.object cannot be resolved

UPDATED 4/26/2018

It appears that you need to have the Scala runtime library in your Eclipse project's classpath.

If you're using Maven (or some other repository-based build tool—highly recommended), then adding Kafka as a dependency should cause it to automatically download the corresponding Scala runtime library and include it on your project's classpath. For example,

<dependency>
    <groupId>org.apache.kafka</groupId>
    <artifactId>kafka_2.12</artifactId>
    <version>1.1.0</version>
</dependency>

will cause Maven to download version 2.12.4 of the Scala runtime library.

Otherwise, you can install Scala (see http://scala-lang.org/) and add the installed scala-library.jar to your project's classpath manually. However, you should note that Scala minor releases (2.10.x, 2.11.x, 2.12.x, etc.) are not binary compatible with each other, so you should download the most recent bug-fix version of the minor release used to build your version of Kafka. (This minor version is appended to the name of the Kafka artifact, e.g. kafka_2.12 requires a Scala 2.12.x runtime library version.)

Downloaded the scala libraries from http://scala-lang.org/download/ and added the scala-library.jar to the project, error resolved!