Unable to get maven to recognize a key in lombok.config

[arvind]

My lombok.config file is in the root directory, same directory as my pom.xml.

This is what my pom.xml looks like:

<plugin>

                <groupId>org.projectlombok</groupId>

                <artifactId>lombok-maven-plugin</artifactId>

                <version>1.16.18.1</version>

</plugin>

On invoking mvn compile I get Unknown key 'lombok.addLombokGeneratedAnnotation'