The following error is thrown while using build 155 of MobRider on CB 1.4.6-R0.1 beta; it only occurs while a mob or player is being ridden.

12:04:19 [WARNING] [MobRider] Task #19 for MobRider v0.47.2-b155 generated an exception java.lang.NoClassDefFoundError: org/bukkit/craftbukkit/entity/CraftCreature at com.edwardhand.mobrider.rider.Rider.setTarget(Rider.java:98) at com.edwardhand.mobrider.goals.StopGoal.update(StopGoal.java:30) at com.edwardhand.mobrider.goals.GoalManager.update(GoalManager.java:80) at com.edwardhand.mobrider.rider.RiderManager.run(RiderManager.java:91) at org.bukkit.craftbukkit.v1_4_6.scheduler.CraftTask.run(CraftTask.java:53) at org.bukkit.craftbukkit.v1_4_6.scheduler.CraftScheduler.mainThreadHeartbeat(CraftScheduler.java:345) at net.minecraft.server.v1_4_6.MinecraftServer.r(MinecraftServer.java:517) at net.minecraft.server.v1_4_6.DedicatedServer.r(DedicatedServer.java:224) at net.minecraft.server.v1_4_6.MinecraftServer.q(MinecraftServer.java:481) at net.minecraft.server.v1_4_6.MinecraftServer.run(MinecraftServer.java:416) at net.minecraft.server.v1_4_6.ThreadServerApplication.run(SourceFile:849)

This was addessed in issue #43 with this [dev build](http://ci.bighatchet.com/job/MobRider%20(compat-1.4.6\)/)