mvcreate skylands normal -g SkylandsPlus
[08:25:07 WARN]: [Multiverse-Core] Failed to get the default chunk generator: java.lang.NoClassDefFoundError: net/minecraft/server/v1_5_R3/World
[08:25:07 WARN]: [Multiverse-Core] This is a bug in SkylandsPlus, NOT a bug in Multiverse!
[08:25:07 INFO]: Invalid generator! 'SkylandsPlus'. Aborting world creation.
Please Help! Thanks!