Unable to host a server? Help?

[Caleb B 0]

I was trying to host a server for me and my friend to play on earlier today, following the guide on the wiki but it would crash everytime spitting out this error. Any ideas on whats wrong?

---- Minecraft Crash Report ----

// Hey, that tickles! Hehehe!

Time: 12/06/13 5:19 PM

Description: Exception in server tick loop

cpw.mods.fml.common.LoaderException: java.lang.ClassNotFoundException: TFC.TerraFirmaCraft

at cpw.mods.fml.common.LoadController.transition(LoadController.java:147)

at cpw.mods.fml.common.Loader.loadMods(Loader.java:514)

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: TFC.TerraFirmaCraft

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

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

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

at cpw.mods.fml.common.ModClassLoader.loadClass(ModClassLoader.java:56)

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

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

at cpw.mods.fml.common.FMLModContainer.constructMod(FMLModContainer.java:425)

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)

... 5 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_03, Oracle Corporation

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

Memory: 969608848 bytes (924 MB) / 1029046272 bytes (981 MB) up to 1908932608 bytes (1820 MB)

JVM Flags: 2 total; -Xms1G -Xmx2G

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 v5.2.23.734 Minecraft Forge 7.8.0.734 4 mods loaded, 4 mods active

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

FML{5.2.23.734} [Forge Mod Loader] (coremods) Unloaded->Constructed

Forge{7.8.0.734} [Minecraft Forge] (coremods) Unloaded->Constructed

TerraFirmaCraft{Build 76 Hotfix 17} [TerraFirmaCraft] (TFC) Unloaded->Errored

Profiler Position: N/A (disabled)

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

Type: Dedicated Server (map_server.txt)

[Kittychanley 1,002]

You are using Minecraft 1.5.2, and the 1.5.2 versions of Forge and PlayerAPI. TFC is only for 1.5.1

If you are following the installation guide on the wiki you NEED to make sure to use the EXACT same version numbers.

minecraftforge-universal-1.5.1-7.7.2.679.zip

MC 1.5.1 - Player API universal 1.5.zip

[Caleb B 0]

I was just using the version of TFC that I downloaded from the website, the launcher jar file.

[Kittychanley 1,002]

I was just using the version of TFC that I downloaded from the website, the launcher jar file.

The launcher is for clients, the only "server" that can be hosted while using the launcher is a LAN one.

Did you read the instructions in the wiki for client installation, or did you scroll down to the bottom for server installation?

From the crash report you provided, Minecraft 1.5.2 along with the 1.5.2 versions of forge and playerAPI are installed, which are impossible to get from the TFC launcher.