Server Problem?: Quickly crashes after installing Forge

[TheWingedOne]

Alright... so I've been trying to set up a modded server for a long time now, but I've always had problems and never asked for help. I have done a LOT of looking around, but I could never find anything like my problem. I can only hope someone knows what's going on.

 

I start by making a regular vanilla server. I download minecraft_server.jar and stick it into its own folder. Then I make a Wordpad document and put this inside:

 

java -Xms512M -Xmx1G -jar minecraft_server.jar

 

That's from this wiki page. Since I'm using Windows and the 64x Java package, I also followed step 3 of the "REQUIRED: Verify and install the latest version of Java" section (changing the path).

 

Then I save it as "startserver.bat". When I open it, and the server sets itself up with ease. I can enter it with no trouble. I've also tried this AFTER installing Forge to the minecraft_server.jar, but after I add Forge the problem happens.

 

I'm trying to install Forge because I want to play Twilight Forest. On the minecraftforum page, it says to follow this link and download the latest recommended build, which has a star next to it. I downloaded 4.1.4.298 universal. Then I opened that and stuck it into my clean client jar, deleted META-INF, started Minecraft, and it prepared itself. (I have tried this before and after I first use startserver.bat, and neither worked.)

 

Then I opened the minecraft_server.jar and put Forge inside. Then I use startserver.bat. (I have tried this before and after the first time I use startserver.bat, and neither worked.)

 

Every time, the cmd window pops up for half a second and then immediately closes down. This window closes down too quickly for me to properly read or copy. HOWEVER, I managed to take a screenshot of it so I went and typed down everything I saw.

 

 

Here is the image: http://i286.photobucket.com/albums/ll83/_-Snow-_/MinecraftForgeProblemScreenshot1-2.png

 

C:\Users\setiram\Desktop\Minecraft Servers\Minecraft Modded 1.3.2>java -Xms512M -Xmx1G -jar minecraft_server.jar

Exception in thread "main" java.lang.ImcompatibleClassChangeError: Implementing class

at java.lang.ClassLoader.defineClass1(Native Method)

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

at java.security.SecureClassLoader.defineClass(Unknown Source)

at java.net.URLClassLoader.defineClass(Unknown Source)

at java.net.URLClassLoader.access$100(Unknown Source)

at java.net.URLClassLoader$1.run(Unknown Source)

at java.net.URLClassLoader$1.run(Unknown Source)

at java.security.AccessController.doPrivileged(Native Method)

at java.net.URLClassLoader.FindClass(Unknown Source)

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

at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)

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

at sun.launcher.LauncherHelper.checkAndLoadMain(Unknown Source)

 

 

If there's trouble seeing it, I can try for a better picture...

 

So... anyone have an idea on what's going on?

 

PS. I have also tried this with a previous build of Forge, and the same problem occurred. This is all for a Minecraft 1.3.2 server.

[rivvest]

Based on the error, I think you are corrupting your minecraft_server.jar when you install Forge.  What tools are you using and can you detail your process?

[TheWingedOne]

I'm sorry, I'm a bit confused... what do you mean by that? I basically have tried:

 

1) Starting the server, allowing the vanilla server files to be created, then putting Forge into minecraft_server.jar and starting it again

2) Putting Forge in the jar first then starting the server

3) Putting Forge in the client jar, starting Minecraft itself, then doing 1 or 2

 

If by tools you mean MCPatcher or some external program like that, I'm not using any.

 

And I think I forgot to mention that I never deleted META-INF in the server jar.

[rivvest]

How are you "putting Forge into the minecraft_server.jar?"  What are you using to do that, and what are your steps?

[TheWingedOne]

Oh. I'm using WinRAR. I open minecraft_server.jar and the Forge build ZIP file, highlight all the files in the Forge build, then drag and drop them into the server jar.

[LexManos]

Use 7zip winrar likes to fuck shit up.

[TheWingedOne]

Just tried that, and the same thing happened. (Though now I like 7zip more. It doesn't pop up with annoying messages...)

[rivvest]

Your method seems sound.  Can you post an image of what your minecraft_server.jar looks like in 7zip?

[TheWingedOne]

Like this? http://i286.photobucket.com/albums/ll83/_-Snow-_/MinecraftForgeProblemScreenshot2-1.png

 

I would upload the jar, but I'm not entirely sure if it's legal, haha...

[rivvest]

Umm the build dates on your unmodified classes are 9/15/2011?? Also your class sizes don't match mine, and you don't have them all.. so my theory is that this is not v1.3.2.  Download a new copy from minecraft.net.  The build dates for 1.3.2 are 8/14/2012.

[TheWingedOne]

Wow, I can't believe I've been using the wrong server version this whole time. Anyways, it works great now. Finally. Thanks so much for your help. ^^