Add Maven dependencies to pentaho-metaverse-api and kettle jars in your pom.xml file.
<dependency> <groupId>pentaho</groupId> <artifactId>pentaho-metaverse-api</artifactId> <version>7.1.0.0-12</version> <type>bundle</type> </dependency> <dependency> <groupId>pentaho-kettle</groupId> <artifactId>kettle-core</artifactId> <version>7.1.0.0-12</version> </dependency> <dependency> <groupId>pentaho-kettle</groupId> <artifactId>kettle-engine</artifactId> <version>7.1.0.0-12</version> </dependency>