Custom Modpack Server Not Working

[worldtothend]

If Someone can help me with this because whenever I start up my modpack server files it always crashes...

HERE IS WHAT IT SAID

---- Minecraft Crash Report ----

// Oops.

 

Time: 6/18/13 8:02 AM

Description: Exception in server tick loop

 

java.lang.NoClassDefFoundError: net/minecraft/client/entity/EntityClientPlayerMP

    at java.lang.Class.forName0(Native Method)

    at java.lang.Class.forName(Unknown Source)

    at cpw.mods.fml.common.ModClassLoader.loadBaseModClass(ModClassLoader.java:86)

    at cpw.mods.fml.common.modloader.ModLoaderModContainer.constructMod(ModLoaderModContainer.java:483)

    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

    at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)

    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)

    at java.lang.reflect.Method.invoke(Unknown Source)

    at com.google.common.eventbus.EventHandler.handleEvent(EventHandler.java:74)

    at com.google.common.eventbus.SynchronizedEventHandler.handleEvent(SynchronizedEventHandler.java:45)

    at com.google.common.eventbus.EventBus.dispatch(EventBus.java:314)

    at com.google.common.eventbus.EventBus.dispatchQueuedEvents(EventBus.java:296)

    at com.google.common.eventbus.EventBus.post(EventBus.java:267)

    at cpw.mods.fml.common.LoadController.sendEventToModContainer(LoadController.java:192)

    at cpw.mods.fml.common.LoadController.propogateStateMessage(LoadController.java:172)

    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

    at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)

    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)

    at java.lang.reflect.Method.invoke(Unknown Source)

    at com.google.common.eventbus.EventHandler.handleEvent(EventHandler.java:74)

    at com.google.common.eventbus.SynchronizedEventHandler.handleEvent(SynchronizedEventHandler.java:45)

    at com.google.common.eventbus.EventBus.dispatch(EventBus.java:314)

    at com.google.common.eventbus.EventBus.dispatchQueuedEvents(EventBus.java:296)

    at com.google.common.eventbus.EventBus.post(EventBus.java:267)

    at cpw.mods.fml.common.LoadController.distributeStateMessage(LoadController.java:103)

    at cpw.mods.fml.common.Loader.loadMods(Loader.java:504)

    at cpw.mods.fml.server.FMLServerHandler.beginServerLoading(FMLServerHandler.java:85)

    at cpw.mods.fml.common.FMLCommonHandler.onServerStart(FMLCommonHandler.java:350)

    at net.minecraft.server.dedicated.DedicatedServer.func_71197_b(DedicatedServer.java:69)

    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:431)

    at net.minecraft.server.ThreadMinecraftServer.run(SourceFile:573)

Caused by: java.lang.ClassNotFoundException: net.minecraft.client.entity.EntityClientPlayerMP

    at cpw.mods.fml.relauncher.RelaunchClassLoader.findClass(RelaunchClassLoader.java:238)

    at java.lang.ClassLoader.loadClass(Unknown Source)

    at java.lang.ClassLoader.loadClass(Unknown Source)

    ... 31 more

Caused by: java.lang.NullPointerException

    at cpw.mods.fml.relauncher.RelaunchClassLoader.findClass(RelaunchClassLoader.java:227)

    ... 33 more

 

 

A detailed walkthrough of the error, its code path and all known details is as follows:

---------------------------------------------------------------------------------------

 

-- System Details --

Details:

    Minecraft Version: 1.5.2

    Operating System: Windows 7 (amd64) version 6.1

    Java Version: 1.7.0_09, Oracle Corporation

    Java VM Version: Java HotSpot 64-Bit Server VM (mixed mode), Oracle Corporation

    Memory: 4058065192 bytes (3870 MB) / 4116054016 bytes (3925 MB) up to 4116054016 bytes (3925 MB)

    JVM Flags: 2 total; -Xmx4g -Xms4g

    AABB Pool Size: 0 (0 bytes; 0 MB) allocated, 0 (0 bytes; 0 MB) used

    Suspicious classes: FML and Forge are installed

    IntCache: cache: 0, tcache: 0, allocated: 0, tallocated: 0

    FML: MCP v7.51 FML v5.2.23.738 Minecraft Forge 7.8.1.738 55 mods loaded, 55 mods active

    mcp{7.51} [Minecraft Coder Pack] (minecraft.jar) Unloaded->Constructed

    FML{5.2.23.738} [Forge Mod Loader] (coremods) Unloaded->Constructed

    Forge{7.8.1.738} [Minecraft Forge] (coremods) Unloaded->Constructed

    CodeChickenCore{0.8.7} [CodeChicken Core] (coremods) Unloaded->Constructed

    CoFHCore{1.5.2.2} [CoFH Core] (coremods) Unloaded->Constructed

    mod_bspkrsCore{v2.08(1.5.2)} [bspkrsCore] (bspkrsCorev2.08.zip) Unloaded->Constructed

    CoFHNetwork{1.5.2.2} [CoFHNetwork] (CoFHCore-1.5.2.2.jar) Unloaded->Constructed

    CoFHWorld{1.5.2.2} [CoFHWorld] (CoFHCore-1.5.2.2.jar) Unloaded->Constructed

    DamageIndicatorsMod{2.7.0.1} [Damage Indicators] (1.5.2 DamageIndicators v2.7.0.1.zip) Unloaded->Constructed

    BetterFurnaces{3.2} [better Furnaces] ([1.5.2]BetterFurnacesV3.2.zip) Unloaded->Constructed

    cfm{2.8.4} [MrCrayfish's Furniture Mod] ([Forge]FurnitureMod2.8.4(FULL).zip) Unloaded->Constructed

    BuildCraft|Core{3.6.0} [buildCraft] (buildcraft-A-3.6.0.jar) Unloaded->Constructed

    BuildCraft|Transport{3.6.0} [bC Transport] (buildcraft-A-3.6.0.jar) Unloaded->Constructed

    BuildCraft|Silicon{3.6.0} [bC Silicon] (buildcraft-A-3.6.0.jar) Unloaded->Constructed

    ThermalExpansion{2.4.3.0} [Thermal Expansion] (ThermalExpansion-2.4.3.0.jar) Unloaded->Constructed

    IC2{1.115.348-lf} [industrialCraft 2] (industrialcraft-2_1.115.348-lf.jar) Unloaded->Constructed

    AppliedEnergistics{rv.10.n} [Applied Energistics] (appeng-rv10-n.zip) Unloaded->Constructed

    mod_ArmorMovement{Not available} [mod_ArmorMovement] (ArmorMovement 1.5.2.zip) Unloaded

    AtomicScience{0.5.3} [Atomic Science] (Atomic_Science_v0.5.3.51.jar) Unloaded

    BiblioCraft{1.3.1} [biblioCraft] (BiblioCraft[v1.3.1].zip) Unloaded

    Natura{1.5.1_2.1} [Natura] (Natura_2.1.jar) Unloaded

    BiomesOPlenty{0.5.5} [biomes O' Plenty] (Biomes-O-Plenty-0.5.5.zip) Unloaded

    BladeCraft_Mod{1.4.2.1} [bladecraft] (BladeCraft 1.4.2.1.zip) Unloaded

    BuildCraft|Builders{3.6.0} [bC Builders] (buildcraft-A-3.6.0.jar) Unloaded

    BuildCraft|Energy{3.6.0} [bC Energy] (buildcraft-A-3.6.0.jar) Unloaded

    BuildCraft|Factory{3.6.0} [bC Factory] (buildcraft-A-3.6.0.jar) Unloaded

    JSOne_Studios.CampfireMod{2.5.3} [Campfire Mod] (CampfireMod_2.5.3_for_1.5.2.zip) Unloaded

    Chisel{1.4.4} [Chisel] (chisel-1.5.2-1.4.4.jar) Unloaded

    CompactSolars{4.2.0.48} [Compact Solar Arrays] (compactsolars-universal-1.5.2-4.2.0.48.zip) Unloaded

    ComputerCraft{1.53} [ComputerCraft] (ComputerCraft1.53.zip) Unloaded

    CCTurtle{1.53} [ComputerCraft Turtles] (ComputerCraft1.53.zip) Unloaded

    CraftableSpawners{1.6} [Craftable Spawners] (CraftableSpawners-161.zip) Unloaded

    ElementalTinkerer{PRE-5a} [§oElemental Tinkerer] (Elemental Tinkerer [PRE-5b].zip) Unloaded

    eplus{1.15} [Enchanting Plus] (EnchantingPlus-1.15.jar) Unloaded

    factorization{0.7.37} [Factorization] (Factorization-0.7.37.jar) Unloaded

    factorization.misc{0.7.37} [Factorization Miscellaneous Nonsense] (Factorization-0.7.37.jar) Unloaded

    factorization.dimensionalSlice{0.7.37} [Factorization Dimensional Slices] (Factorization-0.7.37.jar) Unloaded

    Forestry{2.2.6.3} [Forestry for Minecraft] (forestry-A-2.2.6.3.jar) Unloaded

    ICBM|Contraption{1.2.0} [iCBM|Contraption] (ICBM_Contraption_v1.2.0.114.jar) Unloaded

    ICBM|Sentry{1.2.0} [iCBM|Sentry] (ICBM_Sentry_v1.2.0.114.jar) Unloaded

    ICBM|Explosion{1.2.0} [iCBM|Explosion] (ICBM_Explosion_v1.2.0.114.jar) Unloaded

    IronChest{5.2.8.445} [iron Chest] (ironchest-universal-1.5.2-5.2.8.445.zip) Unloaded

    MagicBees{2.0.0 (build 22)} [Magic Bees] (magicbees-2.0.0.jar) Unloaded

    Mekanism{5.5.6} [Mekanism] (Mekanism-v5.5.6.82.jar) Unloaded

    MekanismGenerators{5.5.6} [MekanismGenerators] (MekanismGenerators-v5.5.6.82.jar) Unloaded

    MekanismTools{5.5.6} [MekanismTools] (MekanismTools-v5.5.6.82.jar) Unloaded

    Mystcraft{0.10.4.00} [Mystcraft] (mystcraft-uni-1.5.2-0.10.4.00.zip) Unloaded

    Natura|CompatMineFactoryReloaded{0.1} [Natura compat: MFR] (Natura_2.1.jar) Unloaded

    mod_PandorasBox{Not available} [mod_PandorasBox] (PandorasBox_1.4.4.zip) Unloaded

    TaleOfKingdoms{1.0} [Tale of Kingship] (Tale of Kingship.zip) Unloaded

    TConstruct{1.5.1_1.3.dev.54} [Tinkers' Construct] (TConstruct_1.3.54.jar) Unloaded

    TConstruct|CompatMineFactoryReloaded{0.1} [TConstruct Compat: MFR] (TConstruct_1.3.54.jar) Unloaded

    Bricks{2.3.5.2} [Throwable Bricks Mod] (Throwable Bricks Mod v2.3.5.2.zip) Unloaded

    mod_TooManyItems{Not available} [mod_TooManyItems] (TooManyItems2013_04_25_1.5.2.zip) Unloaded

    TwilightForest{1.18.1} [The Twilight Forest] (twilightforest-1.18.1.zip) Unloaded

    Profiler Position: N/A (disabled)

    Is Modded: Definitely; Server brand changed to 'fml,forge'

    Type: Dedicated Server (map_server.txt)

Adding RAM To It Doesn't Work