[08:18:44 WARN]: [DragonFly] Task #29 for DragonFly v1.0 generated an exception
java.lang.NoClassDefFoundError: org/bukkit/craftbukkit/v1_8_R3/entity/CraftEnder
Dragon
        at DragonFlyPacket.Main$2.run(Main.java:59) ~[DragonFly.jar:?]
        at org.bukkit.craftbukkit.v1_8_R1.scheduler.CraftTask.run(CraftTask.java
:71) ~[spigot.jar:git-Spigot-550ebac-7019900]
        at org.bukkit.craftbukkit.v1_8_R1.scheduler.CraftScheduler.mainThreadHea
rtbeat(CraftScheduler.java:350) [spigot.jar:git-Spigot-550ebac-7019900]
        at net.minecraft.server.v1_8_R1.MinecraftServer.z(MinecraftServer.java:7
09) [spigot.jar:git-Spigot-550ebac-7019900]
        at net.minecraft.server.v1_8_R1.DedicatedServer.z(DedicatedServer.java:3
16) [spigot.jar:git-Spigot-550ebac-7019900]
        at net.minecraft.server.v1_8_R1.MinecraftServer.y(MinecraftServer.java:6
34) [spigot.jar:git-Spigot-550ebac-7019900]
        at net.minecraft.server.v1_8_R1.MinecraftServer.run(MinecraftServer.java
:537) [spigot.jar:git-Spigot-550ebac-7019900]
        at java.lang.Thread.run(Unknown Source) [?:1.8.0_20]
[08:18:44 WARN]: [DragonFly] Task #29 for DragonFly v1.0 generated an exception
java.lang.NoClassDefFoundError: org/bukkit/craftbukkit/v1_8_R3/entity/CraftEnder
Dragon
        at DragonFlyPacket.Main$2.run(Main.java:59) ~[DragonFly.jar:?]
        at org.bukkit.craftbukkit.v1_8_R1.scheduler.CraftTask.run(CraftTask.java
:71) ~[spigot.jar:git-Spigot-550ebac-7019900]
        at org.bukkit.craftbukkit.v1_8_R1.scheduler.CraftScheduler.mainThreadHea
rtbeat(CraftScheduler.java:350) [spigot.jar:git-Spigot-550ebac-7019900]
        at net.minecraft.server.v1_8_R1.MinecraftServer.z(MinecraftServer.java:7
09) [spigot.jar:git-Spigot-550ebac-7019900]
        at net.minecraft.server.v1_8_R1.DedicatedServer.z(DedicatedServer.java:3
16) [spigot.jar:git-Spigot-550ebac-7019900]
        at net.minecraft.server.v1_8_R1.MinecraftServer.y(MinecraftServer.java:6
34) [spigot.jar:git-Spigot-550ebac-7019900]
        at net.minecraft.server.v1_8_R1.MinecraftServer.run(MinecraftServer.java
:537) [spigot.jar:git-Spigot-550ebac-7019900]
        at java.lang.Thread.run(Unknown Source) [?:1.8.0_20]