404 - Retrieval of /org/apache/maven/plugins/maven-site-plugin/2.0.1/maven-site-plugin-2.0.1.pom from M2Repository(id=snapshots) is forbidden by repository policy SNAPSHOT.

Retrieval of /org/apache/maven/plugins/maven-site-plugin/2.0.1/maven-site-plugin-2.0.1.pom from M2Repository(id=snapshots) is forbidden by repository policy SNAPSHOT.