I have a strange biome id conflict issue. It will crash my game and I am trying to find how to fix it. I used the Anti Conflict mod and the report says...
Total amount of conflicted biome ids: 15
IDs in conflict:

129 is asked by: Sunflower Plains (net.minecraft.world.biome.BiomeGenPlains), Sunflower Plains (net.minecraft.world.biome.BiomeGenPlains)
132 is asked by: Flower Forest (net.minecraft.world.biome.BiomeGenForest), Flower Forest (net.minecraft.world.biome.BiomeGenForest)
133 is asked by: Taiga M (net.minecraft.world.biome.BiomeGenTaiga), Taiga M (net.minecraft.world.biome.BiomeGenTaiga)
134 is asked by: Swampland M (net.minecraft.world.biome.BiomeGenSwamp), Swampland M (net.minecraft.world.biome.BiomeGenSwamp)
149 is asked by: Jungle M (net.minecraft.world.biome.BiomeGenJungle), Jungle M (net.minecraft.world.biome.BiomeGenJungle)
151 is asked by: JungleEdge M (net.minecraft.world.biome.BiomeGenJungle), JungleEdge M (net.minecraft.world.biome.BiomeGenJungle)
155 is asked by: Birch Forest M (net.minecraft.world.biome.BiomeGenForest), Birch Forest M (net.minecraft.world.biome.BiomeGenForest)
156 is asked by: Birch Forest Hills M (net.minecraft.world.biome.BiomeGenForest), Birch Forest Hills M (net.minecraft.world.biome.BiomeGenForest)
157 is asked by: Roofed Forest M (net.minecraft.world.biome.BiomeGenForest), Roofed Forest M (net.minecraft.world.biome.BiomeGenForest)
158 is asked by: Cold Taiga M (net.minecraft.world.biome.BiomeGenTaiga), Cold Taiga M (net.minecraft.world.biome.BiomeGenTaiga)
160 is asked by: Mega Spruce Taiga (net.minecraft.world.biome.BiomeGenTaiga), Mega Spruce Taiga (net.minecraft.world.biome.BiomeGenTaiga)
161 is asked by: Mega Spruce Taiga (net.minecraft.world.biome.BiomeGenTaiga), Mega Taiga Hills M (net.minecraft.world.biome.BiomeGenTaiga)
165 is asked by: Mesa (Bryce) (net.minecraft.world.biome.BiomeGenMesa), Mesa (Bryce) (net.minecraft.world.biome.BiomeGenMesa)
166 is asked by: Mesa Plateau F M (net.minecraft.world.biome.BiomeGenMesa), Mesa Plateau F M (net.minecraft.world.biome.BiomeGenMesa)
167 is asked by: Mesa Plateau M (net.minecraft.world.biome.BiomeGenMesa), Mesa Plateau M (net.minecraft.world.biome.BiomeGenMesa)

So, how do you fix it when Minecraft conflicts with itself?