RedstoneMania Error.

11:55:44 [INFO] [Redstone Mania] Enabling Redstone Mania v1.04
11:55:44 [SEVERE] [Redstone Mania] An error occurred while enabling, the plugin will be disabled
11:55:44 [SEVERE] [Redstone Mania] You may have to update Redstone Mania or look for a newer CraftBukkit build.
11:55:44 [SEVERE] java.lang.NoSuchMethodError: com.bergerkiller.bukkit.rm.circuit.CircuitBase$1.read()V
11:55:44 [SEVERE]   at com.bergerkiller.bukkit.rm.circuit.CircuitBase.load(CircuitBase.java:220)
11:55:44 [SEVERE]   at com.bergerkiller.bukkit.rm.circuit.CircuitBase.load(CircuitBase.java:207)
11:55:44 [SEVERE]   at com.bergerkiller.bukkit.rm.circuit.CircuitProvider.load(CircuitProvider.java:115)
11:55:44 [SEVERE]   at com.bergerkiller.bukkit.rm.circuit.CircuitProvider.get(CircuitProvider.java:29)
11:55:44 [SEVERE]   at com.bergerkiller.bukkit.rm.circuit.CircuitProvider.loadAll(CircuitProvider.java:131)
11:55:44 [SEVERE]   at com.bergerkiller.bukkit.rm.RedstoneMania.enable(RedstoneMania.java:37)
11:55:44 [SEVERE]   at com.bergerkiller.bukkit.common.PluginBase.onEnable(PluginBase.java:720)
11:55:44 [SEVERE]   at org.bukkit.plugin.java.JavaPlugin.setEnabled(JavaPlugin.java:217)
11:55:44 [SEVERE]   at org.bukkit.plugin.java.JavaPluginLoader.enablePlugin(JavaPluginLoader.java:457)
11:55:44 [SEVERE]   at org.bukkit.plugin.SimplePluginManager.enablePlugin(SimplePluginManager.java:381)
11:55:44 [SEVERE]   at org.bukkit.craftbukkit.v1_5_R3.CraftServer.loadPlugin(CraftServer.java:282)
11:55:44 [SEVERE]   at org.bukkit.craftbukkit.v1_5_R3.CraftServer.enablePlugins(CraftServer.java:264)
11:55:44 [SEVERE]   at net.minecraft.server.v1_5_R3.MinecraftServer.j(MinecraftServer.java:304)
11:55:44 [SEVERE]   at net.minecraft.server.v1_5_R3.MinecraftServer.e(MinecraftServer.java:283)
11:55:44 [SEVERE]   at net.minecraft.server.v1_5_R3.MinecraftServer.a(MinecraftServer.java:243)
11:55:44 [SEVERE]   ...3 more
11:55:44 [INFO] [Redstone Mania] Disabling Redstone Mania v1.04
11:55:44 [INFO] Redstone Mania disabled!