./mvnw -s settings.xml clean verify
Make sure to uncheck "Use maven 3 to import project"
<repository>
<id>bintray-grok</id>
<url>http://dl.bintray.com/grok/maven</url>
<snapshots>
<enabled>false</enabled>
</snapshots>
</repository>
<dependency>
<groupId>com.grokclimbing.grok.core</groupId>
<artifactId>grok-core-api</artifactId>
<version>(INSERT VERSION HERE)</version>
</dependency>