Minecraft Forums

Plz plz plz help!!!

[14:51:31] [Server thread/INFO]: Starting minecraft server version 1.7.10
[14:51:37] [Server thread/INFO]: Loading properties
[14:51:37] [Server thread/INFO]: Default game type: SURVIVAL
[14:51:37] [Server thread/INFO]: Generating keypair
[14:51:37] [Server thread/INFO]: Starting Minecraft server on *:25565
[14:51:38] [Server thread/INFO]: Preparing level "world"
[14:52:03] [Server thread/INFO]: Preparing start region for level 0
[14:52:04] [Server thread/ERROR]: Encountered an unexpected exception
java.lang.NoClassDefFoundError: Could not initialize class Reflector
at net.minecraft.crash.CrashReport.func_71504_g(CrashReport.java:163) ~[b.class:?]
at net.minecraft.crash.CrashReport.<init>(CrashReport.java:55) ~[b.class:?]
at net.minecraft.crash.CrashReport.func_85055_a(CrashReport.java:442) ~[b.class:?]
at net.minecraft.entity.Entity.func_70020_e(Entity.java:1442) ~[sa.class:?]
at net.minecraft.entity.EntityList.func_75615_a(EntityList.java:172) ~[sg.class:?]
at net.minecraft.world.chunk.storage.AnvilChunkLoader.loadEntities(AnvilChunkLoader.java:465) ~[aqk.class:?]
at net.minecraftforge.common.chunkio.ChunkIOProvider.callStage2(ChunkIOProvider.java:41) ~[ChunkIOProvider.class:?]
at net.minecraftforge.common.chunkio.ChunkIOProvider.callStage2(ChunkIOProvider.java:12) ~[ChunkIOProvider.class:?]
at net.minecraftforge.common.util.AsynchronousExecutor.skipQueue(AsynchronousExecutor.java:344) ~[AsynchronousExecutor.class:?]
at net.minecraftforge.common.util.AsynchronousExecutor.getSkipQueue(AsynchronousExecutor.java:302) ~[AsynchronousExecutor.class:?]
at net.minecraftforge.common.chunkio.ChunkIOExecutor.syncChunkLoad(ChunkIOExecutor.java:12) ~[ChunkIOExecutor.class:?]
at net.minecraft.world.gen.ChunkProviderServer.loadChunk(ChunkProviderServer.java:126) ~[ms.class:?]
at net.minecraft.world.gen.ChunkProviderServer.func_73158_c(ChunkProviderServer.java:101) ~[ms.class:?]
at net.minecraft.server.MinecraftServer.func_71222_d(MinecraftServer.java:265) ~[MinecraftServer.class:?]
at net.minecraft.server.MinecraftServer.func_71247_a(MinecraftServer.java:235) ~[MinecraftServer.class:?]
at net.minecraft.server.dedicated.DedicatedServer.func_71197_b(DedicatedServer.java:258) ~[lt.class:?]
at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:387) [MinecraftServer.class:?]
at net.minecraft.server.MinecraftServer$2.run(MinecraftServer.java:685) [li.class:?]