Failed to get the default chunk generator

[maddyn99]

I get the following errors when using the latest dev build (#34) when trying to enable the mushroom biome and/or trying to use the ocean=PLAINS.

2013-07-26 13:53:00 [WARNING] [Multiverse-Core] Failed to get the default chunk generator: java.lang.IllegalArgumentException: No enum constant org.bukkit.block.Biome.=PLAINS
2013-07-26 13:53:00 [WARNING] [Multiverse-Core] This is a bug in SkylandsPlus, NOT a bug in Multiverse!
2013-07-26 13:53:00 [INFO] Invalid generator! 'SkylandsPlus:offset=48,largefeature,village,mineshaft,mushroom,swampland,ocean=PLAINS'. Aborting world creation.

2013-07-26 13:53:53 [WARNING] [Multiverse-Core] Failed to get the default chunk generator: java.lang.IllegalArgumentException: No enum constant org.bukkit.block.Biome.=PLAINS
2013-07-26 13:53:53 [WARNING] [Multiverse-Core] This is a bug in SkylandsPlus, NOT a bug in Multiverse!
2013-07-26 13:53:53 [INFO] Invalid generator! 'SkylandsPlus:offset=48,largefeature,village,mineshaft,swampland,ocean=PLAINS'. Aborting world creation.

I finally got a world to generate using.. /mvc sky normal -g SkylandsPlus:offset=48,largefeature,village,swampland

However no ores at all spawned except for coal. Is this normal?

[maddyn99]

Ive spawned about 5 or 6 different worlds and still cant get any diamonds to spawn. I had to revert to an xray mod to make sure but I explored a few hundred chunks and zero diamonds