Trying to use Phoenix Bow causes instant crash

[atlasdragonone]

This is in SP, guessing it'd do the same thing in MP.

java.lang.NoSuchFieldError: b
at ItemPhoenixBow.a(ItemPhoenixBow.java:18)
at iz.a(ItemStack.java:82)
at ob.a(PlayerController.java:52)
at net.minecraft.client.Minecraft.a(Minecraft.java:900)
at net.minecraft.client.Minecraft.k(Minecraft.java:1172)
at net.minecraft.client.Minecraft.run(Minecraft.java:580)
at java.lang.Thread.run(Unknown Source)

This is the error it throws to log.