java.lang.IllegalArgumentException: No enum constant net.minecraftforge.common.BiomeDictionary.Type.SUNFLOWER PLAINS
	at java.lang.Enum.valueOf(Unknown Source) ~[?:1.8.0_51]
	at net.minecraftforge.common.BiomeDictionary$Type.valueOf(BiomeDictionary.java:15) ~[BiomeDictionary$Type.class:?]
	at CustomOreGen.Util.BiomeDescriptor.matchingWeight(BiomeDescriptor.java:134) ~[BiomeDescriptor.class:?]
	at CustomOreGen.Util.BiomeDescriptor.compileMatches(BiomeDescriptor.java:166) ~[BiomeDescriptor.class:?]
	at CustomOreGen.Util.BiomeDescriptor.getTotalMatchWeight(BiomeDescriptor.java:242) ~[BiomeDescriptor.class:?]
	at CustomOreGen.Server.MapGenOreDistribution.validate(MapGenOreDistribution.java:332) ~[MapGenOreDistribution.class:?]
	at CustomOreGen.Server.MapGenCloud.validate(MapGenCloud.java:80) ~[MapGenCloud.class:?]
	at CustomOreGen.Server.ServerState.validateDistributions(ServerState.java:109) [ServerState.class:?]
	at CustomOreGen.Server.ServerState.getWorldConfig(ServerState.java:57) [ServerState.class:?]
	at CustomOreGen.ForgeInterface.onLoadWorld(ForgeInterface.java:46) [ForgeInterface.class:?]
	at cpw.mods.fml.common.eventhandler.ASMEventHandler_13_ForgeInterface_onLoadWorld_Load.invoke(.dynamic) [?:?]
	at cpw.mods.fml.common.eventhandler.ASMEventHandler.invoke(ASMEventHandler.java:54) [ASMEventHandler.class:?]
	at cpw.mods.fml.common.eventhandler.EventBus.post(EventBus.java:138) [EventBus.class:?]
	at net.minecraft.server.integrated.IntegratedServer.func_71247_a(IntegratedServer.java:73) [bsx.class:?]
	at net.minecraft.server.integrated.IntegratedServer.func_71197_b(IntegratedServer.java:92) [bsx.class:?]
	at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:387) [MinecraftServer.class:?]
	at net.minecraft.server.MinecraftServer$2.run(MinecraftServer.java:685) [?:?]

<IfCondition condition=':= hic2TinDist = "strategicClouds"'>
				<Cloud name='HardTinCloud' block='HarderOres:ore_tin:1' inherits='PresetStrategicCloud'>
                    <Description>
                        Diffuse tin cloud filled with random, denser, pockets.
                    </Description>
                    <DrawWireframe>:=drawWireframes</DrawWireframe>
                    <WireframeColor>0x20FFFFFF</WireframeColor>
					<Setting name='CloudHeight' avg='48' range='6' />
					<Setting name='CloudSizeNoise' avg='0.1' range='0.025' />
                    <Setting name='DistributionFrequency' avg=':= 0.01 * hic2TinFreq * if(age,age.ic2TinClouds,1)'/>
                    <Setting name='CloudRadius' avg=':= 1.5 * hic2TinSize * _default_' range=':= 0.6 * hic2TinSize * _default_'/>
                    <Setting name='CloudThickness' avg=':= 8.0 * hic2TinSize' range='2'/>
                    <Setting name='OreDensity' avg='0.075'/>
                    <BiomeType name='Sunflower Plains' weight='1'/>
                    <BiomeType name='Plains' weight='1'/>
                    <BiomeType name='Forest' weight='0.25'/>
                    <BiomeType name='ForestHills' weight='0.25'/>
                    <BiomeType name='Birch Forest' weight='0.25'/>
                    <BiomeType name='.*' weight='0.1'/>
					<Cloud name='HardTinCloudChild' block='HarderOres:ore_tin:11' inherits='PresetStrategicCloud'>
						<DrawWireframe>:=drawWireframes</DrawWireframe>
						<WireframeColor>0x20BFBFBF</WireframeColor>
						<Setting name='CloudHeight' avg='48' range='2' />
						<Setting name='ParentRangeLimit' avg='18' range='6' />
						<Setting name='CloudSizeNoise' avg='0.05' range='0.05' />
						<Setting name='DistributionFrequency' avg='1.5' range='.5'/>
						<Setting name='CloudRadius' avg=':= 6 * hic2TinSize' range=':= 2.6 * hic2TinSize'/>
						<Setting name='CloudThickness' avg='3.0' range='0.3'/>
						<Setting name='OreDensity' avg='0.85'/>
						<Cloud name='HardTinCloudCore' block='HarderOres:ore_tin:15' inherits='PresetStrategicCloud'>
							<DrawWireframe>:=drawWireframes</DrawWireframe>
							<WireframeColor>0x20888888</WireframeColor>
							<Setting name='CloudHeight' avg='48' range='1' />
							<Setting name='ParentRangeLimit' avg='3' range='1' />
							<Setting name='CloudSizeNoise' avg='0.05' range='0.05' />
							<Setting name='DistributionFrequency' avg='2' range='0'/>
							<Setting name='CloudRadius' avg=':= 2 * hic2TinSize' range='0'/>
							<Setting name='CloudThickness' avg='1.5' range='0.15'/>
							<Setting name='OreDensity' avg='1'/>
						</Cloud>
					</Cloud>
                </Cloud>
            </IfCondition>

Issue happens with These three.
<BiomeType name='Sunflower Plains' weight='1'/>
<BiomeType name='ForestHills' weight='0.25'/>
<BiomeType name='Birch Forest' weight='0.25'/>