i hate the H.S traks
19:59:39 [SEVERE] Encountered an unexpected exception NoClassDefFoundError
19:59:39 java.lang.NoClassDefFoundError: yd
19:59:39 at yc.m(World.java:839)
19:59:39 at yc.h(World.java:805)
19:59:39 at yc.f(World.java:744)
19:59:39 at yc.e(World.java:702)
19:59:39 at railcraft.common.blocks.tracks.ItemTrack.placeTrack(ItemTrack.java:92)
19:59:39 at railcraft.common.blocks.tracks.ItemTrack.a(ItemTrack.java:144)
19:59:39 at ur.a(SourceFile:88)
19:59:39 at ir.a(ItemInWorldManager.java:424)
19:59:39 at iv.a(NetServerHandler.java:578)
19:59:39 at fk.a(SourceFile:58)
19:59:39 at cg.b(TcpConnection.java:458)
19:59:39 at iv.d(NetServerHandler.java:136)
19:59:39 at iw.b(NetworkListenThread.java:57)
19:59:39 at ht.b(SourceFile:30)
19:59:39 at net.minecraft.server.MinecraftServer.r(MinecraftServer.java:703)
19:59:39 at ho.r(DedicatedServer.java:269)
19:59:39 at net.minecraft.server.MinecraftServer.q(MinecraftServer.java:599)
19:59:39 at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:497)
19:59:39 at fy.run(SourceFile:849)