Error!!!

[ghost]

Craftbukkit 1.7.9

EchoPet v2.8.0

Error:

[18:01:11] [Server thread/INFO]: [EchoPet] Enabling EchoPet v2.8.0-b52 [18:01:11] [Server thread/ERROR]: Error occurred while enabling EchoPet v2.8.0-b52 (Is it up to date?) java.lang.NoSuchFieldError: ENDERMITE at com.dsh105.echopet.compat.api.entity.PetType.(PetType.java:36) [?:?] at com.dsh105.echopet.compat.api.registration.PetRegistry.(PetRegistry.java:67) [?:?] at com.dsh105.echopet.EchoPetPlugin.onEnable(EchoPetPlugin.java:120) [?:?] at org.bukkit.plugin.java.JavaPlugin.setEnabled(JavaPlugin.java:316) [CraftBukkit.jar:git-Bukkit-1.7.9-R0.1-10-g8688bd4-b3092jnks] at org.bukkit.plugin.java.JavaPluginLoader.enablePlugin(JavaPluginLoader.java:324) [CraftBukkit.jar:git-Bukkit-1.7.9-R0.1-10-g8688bd4-b3092jnks] at org.bukkit.plugin.SimplePluginManager.enablePlugin(SimplePluginManager.java:404) [CraftBukkit.jar:git-Bukkit-1.7.9-R0.1-10-g8688bd4-b3092jnks] at org.bukkit.craftbukkit.v1_7_R3.CraftServer.loadPlugin(CraftServer.java:446) [CraftBukkit.jar:git-Bukkit-1.7.9-R0.1-10-g8688bd4-b3092jnks] at org.bukkit.craftbukkit.v1_7_R3.CraftServer.enablePlugins(CraftServer.java:380) [CraftBukkit.jar:git-Bukkit-1.7.9-R0.1-10-g8688bd4-b3092jnks] at net.minecraft.server.v1_7_R3.MinecraftServer.n(MinecraftServer.java:352) [CraftBukkit.jar:git-Bukkit-1.7.9-R0.1-10-g8688bd4-b3092jnks] at net.minecraft.server.v1_7_R3.MinecraftServer.g(MinecraftServer.java:326) [CraftBukkit.jar:git-Bukkit-1.7.9-R0.1-10-g8688bd4-b3092jnks] at net.minecraft.server.v1_7_R3.MinecraftServer.a(MinecraftServer.java:282) [CraftBukkit.jar:git-Bukkit-1.7.9-R0.1-10-g8688bd4-b3092jnks] at net.minecraft.server.v1_7_R3.DedicatedServer.init(DedicatedServer.java:182) [CraftBukkit.jar:git-Bukkit-1.7.9-R0.1-10-g8688bd4-b3092jnks] at net.minecraft.server.v1_7_R3.MinecraftServer.run(MinecraftServer.java:436) [CraftBukkit.jar:git-Bukkit-1.7.9-R0.1-10-g8688bd4-b3092jnks] at net.minecraft.server.v1_7_R3.ThreadServerApplication.run(SourceFile:628) [CraftBukkit.jar:git-Bukkit-1.7.9-R0.1-10-g8688bd4-b3092jnks]