NullPointerException thrown when attempting to install a non-addon dependency

sharkbook:core lbaxter$ forge --install org.jboss.forge:maven,2.0.0-SNAPSHOT
java.lang.NullPointerException
	at org.sonatype.aether.impl.internal.DefaultRepositorySystem.resolveDependencies(DefaultRepositorySystem.java:352)
	at org.jboss.forge.maven.container.MavenDependencyResolver.resolveDependencyHierarchy(MavenDependencyResolver.java:228)
	at org.jboss.forge.addon.manager.AddonManager.install(AddonManager.java:41)
	at org.jboss.forge.bootstrap.Bootstrap.install(Bootstrap.java:87)
	at org.jboss.forge.bootstrap.Bootstrap.<init>(Bootstrap.java:71)
	at org.jboss.forge.bootstrap.Bootstrap.main(Bootstrap.java:35)