dependencies.dependency.(groupId:artifactId:type:classifier)' must be unique: io.springfox:springfox-swagger2:jar -> version 2.6.1 vs 2.9.2 @ com.stackroute:user-authentication:[unknown-version], /home/sunil/Desktop/plasma/ontrack/ibm-wave3-ontrack-hackathon/user-authentication/pom.xml, line 108, column 15 #51