Minecraft Forums

Quote from Maybe0ne

1. It works on bukkit ?
2. If i have the mod on bukkit and on my client, and someone try to join, he will get an error or i can use nbtedit on my server but someone who don't have the mob will can't ?

Quote from Miao_Miao

Editing level.dat?
Possible or not in-game?
EDIT: Also, I think that if you add a key to open the menu, it would be compatibile for the client to use the mod (if he is an OP in creative mode) in multiplayer!

Quote from Zapjack

Is there a way to edit the entire world?

Quote from Gibboman456

This is the greatest, most overly useful, and convinient mod I have ever downloaded! (and belive me, I've downloaded a lot of mods (416 to be exact))!

Quote from botboy10

Still haven't figured out how to install it after all this time. o_O

Quote from Davidee

Oh, that was you! Anyways, the current functionality cannot be extended without a major rewrite. If you want to discuss it, please PM me

As for those having errors, make sure that:

• The mod is placed in the mods folder
• The mod is the correct version
• Forge is the correct stable version
• There are no old mods in your mods folder
• YOU USE SPOILER TAGS

---- Minecraft Crash Report ----
// Sorry

Time: 7/25/13 11:22 PM
Description: Initializing game

java.lang.RuntimeException: Unknown character ' ' in 'C:/Users/DYLAN/AppData/Roaming/.minecraft/config/NBTEdit.cfg:1'
at net.minecraftforge.common.Configuration.load(Configuration.java:625)
at net.minecraftforge.common.Configuration.<init>(Configuration.java:100)
at com.mcf.davidee.nbtedit.NBTEdit.preInit(NBTEdit.java:85)
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 cpw.mods.fml.common.FMLModContainer.handleModStateEvent(FMLModContainer.java:540)
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:313)
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:194)
at cpw.mods.fml.common.LoadController.propogateStateMessage(LoadController.java:174)
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:313)
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:105)
at cpw.mods.fml.common.Loader.loadMods(Loader.java:521)
at cpw.mods.fml.client.FMLClientHandler.beginMinecraftLoading(FMLClientHandler.java:182)
at net.minecraft.client.Minecraft.func_71384_a(Minecraft.java:470)
at net.minecraft.client.Minecraft.func_99999_d(Minecraft.java:796)
at net.minecraft.client.main.Main.main(SourceFile:101)
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 net.minecraft.launchwrapper.Launch.launch(Launch.java:57)
at net.minecraft.launchwrapper.Launch.main(Launch.java:18)


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

-- Head --
Stacktrace:
at net.minecraftforge.common.Configuration.load(Configuration.java:625)
at net.minecraftforge.common.Configuration.<init>(Configuration.java:100)
at com.mcf.davidee.nbtedit.NBTEdit.preInit(NBTEdit.java:85)
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 cpw.mods.fml.common.FMLModContainer.handleModStateEvent(FMLModContainer.java:540)
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:313)
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:194)
at cpw.mods.fml.common.LoadController.propogateStateMessage(LoadController.java:174)
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:313)
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:105)
at cpw.mods.fml.common.Loader.loadMods(Loader.java:521)
at cpw.mods.fml.client.FMLClientHandler.beginMinecraftLoading(FMLClientHandler.java:182)
at net.minecraft.client.Minecraft.func_71384_a(Minecraft.java:470)

-- Initialization --
Details:
Stacktrace:
at net.minecraft.client.Minecraft.func_99999_d(Minecraft.java:796)
at net.minecraft.client.main.Main.main(SourceFile:101)
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 net.minecraft.launchwrapper.Launch.launch(Launch.java:57)
at net.minecraft.launchwrapper.Launch.main(Launch.java:18)

-- System Details --
Details:
Minecraft Version: 1.6.2
Operating System: Windows 8 (x86) version 6.2
Java Version: 1.7.0_25, Oracle Corporation
Java VM Version: Java HotSpot(TM) Client VM (mixed mode, sharing), Oracle Corporation
Memory: 11803848 bytes (11 MB) / 81547264 bytes (77 MB) up to 518979584 bytes (494 MB)
JVM Flags: 1 total; -Xmx512M
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 v8.04 FML v6.2.35.804 Minecraft Forge 9.10.0.804 4 mods loaded, 4 mods active
mcp{8.04} [Minecraft Coder Pack] (minecraft.jar) Unloaded->Constructed->Pre-initialized
FML{6.2.35.804} [Forge Mod Loader] (coremods) Unloaded->Constructed->Pre-initialized
Forge{9.10.0.804} [Minecraft Forge] (coremods) Unloaded->Constructed->Pre-initialized
NBTEdit{1.6.2.0} [In-game NBTEdit] (Forge_NBTEditv1.6.2.0.zip) Unloaded->Constructed->Errored
Launched Version: 1.6.2-Forge9.10.0.804
LWJGL: 2.9.0
OpenGL: AMD Radeon HD 6670 GL version 4.2.12217 Compatibility Profile Context 12.104.0.0, ATI Technologies Inc.
Is Modded: Definitely; Client brand changed to 'fml,forge'
Type: Client (map_client.txt)
Resource Pack: Red Dead Redstone Pack v03
Current Language: English (US)
Profiler Position: N/A (disabled)
Vec3 Pool Size: ~~ERROR~~ NullPointerException: null

Quote from dragonzero39

Davidee, could you please write out how to install it for a server. I'm having troubles. <3

Quote from D1280

Used all that and it still didn't work, here's the error:

---- Minecraft Crash Report ----
// Sorry

Time: 7/25/13 11:22 PM
Description: Initializing game

java.lang.RuntimeException: Unknown character ' ' in 'C:/Users/DYLAN/AppData/Roaming/.minecraft/config/NBTEdit.cfg:1'
at net.minecraftforge.common.Configuration.load(Configuration.java:625)
at net.minecraftforge.common.Configuration.<init>(Configuration.java:100)
at com.mcf.davidee.nbtedit.NBTEdit.preInit(NBTEdit.java:85)
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 cpw.mods.fml.common.FMLModContainer.handleModStateEvent(FMLModContainer.java:540)
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:313)
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:194)
at cpw.mods.fml.common.LoadController.propogateStateMessage(LoadController.java:174)
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:313)
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:105)
at cpw.mods.fml.common.Loader.loadMods(Loader.java:521)
at cpw.mods.fml.client.FMLClientHandler.beginMinecraftLoading(FMLClientHandler.java:182)
at net.minecraft.client.Minecraft.func_71384_a(Minecraft.java:470)
at net.minecraft.client.Minecraft.func_99999_d(Minecraft.java:796)
at net.minecraft.client.main.Main.main(SourceFile:101)
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 net.minecraft.launchwrapper.Launch.launch(Launch.java:57)
at net.minecraft.launchwrapper.Launch.main(Launch.java:18)


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

-- Head --
Stacktrace:
at net.minecraftforge.common.Configuration.load(Configuration.java:625)
at net.minecraftforge.common.Configuration.<init>(Configuration.java:100)
at com.mcf.davidee.nbtedit.NBTEdit.preInit(NBTEdit.java:85)
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 cpw.mods.fml.common.FMLModContainer.handleModStateEvent(FMLModContainer.java:540)
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:313)
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:194)
at cpw.mods.fml.common.LoadController.propogateStateMessage(LoadController.java:174)
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:313)
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:105)
at cpw.mods.fml.common.Loader.loadMods(Loader.java:521)
at cpw.mods.fml.client.FMLClientHandler.beginMinecraftLoading(FMLClientHandler.java:182)
at net.minecraft.client.Minecraft.func_71384_a(Minecraft.java:470)

-- Initialization --
Details:
Stacktrace:
at net.minecraft.client.Minecraft.func_99999_d(Minecraft.java:796)
at net.minecraft.client.main.Main.main(SourceFile:101)
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 net.minecraft.launchwrapper.Launch.launch(Launch.java:57)
at net.minecraft.launchwrapper.Launch.main(Launch.java:18)

-- System Details --
Details:
Minecraft Version: 1.6.2
Operating System: Windows 8 (x86) version 6.2
Java Version: 1.7.0_25, Oracle Corporation
Java VM Version: Java HotSpot™ Client VM (mixed mode, sharing), Oracle Corporation
Memory: 11803848 bytes (11 MB) / 81547264 bytes (77 MB) up to 518979584 bytes (494 MB)
JVM Flags: 1 total; -Xmx512M
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 v8.04 FML v6.2.35.804 Minecraft Forge 9.10.0.804 4 mods loaded, 4 mods active
mcp{8.04} [Minecraft Coder Pack] (minecraft.jar) Unloaded->Constructed->Pre-initialized
FML{6.2.35.804} [Forge Mod Loader] (coremods) Unloaded->Constructed->Pre-initialized
Forge{9.10.0.804} [Minecraft Forge] (coremods) Unloaded->Constructed->Pre-initialized
NBTEdit{1.6.2.0} [In-game NBTEdit] (Forge_NBTEditv1.6.2.0.zip) Unloaded->Constructed->Errored
Launched Version: 1.6.2-Forge9.10.0.804
LWJGL: 2.9.0
OpenGL: AMD Radeon HD 6670 GL version 4.2.12217 Compatibility Profile Context 12.104.0.0, ATI Technologies Inc.
Is Modded: Definitely; Client brand changed to 'fml,forge'
Type: Client (map_client.txt)
Resource Pack: Red Dead Redstone Pack v03
Current Language: English (US)
Profiler Position: N/A (disabled)
Vec3 Pool Size: ~~ERROR~~ NullPointerException: null

Also, it used to work on an older version, forgot which. It was one from right after 1.6 NBT + Forge came out I think

Quote from Miao_Miao

Also:
-Is it possible to edit the dropped items?,
-Can you enable the the command to edit the ID of a block?,
-An idea for the command: /nbtedit add (adds the selected block/TileEntity/Entity to a list, then doing /nbtedit opens a menu that shows all the blocks/TileEntities/Entities, and if they are the same, you can mass-edit all those blocks/TileEntities/Entities doing the modifictions only once, this can be used in tandem with the modification of the blockIDs (if yo add that feature)) and /nbtedit removeall (undo the selection made with the command /nbtedit add)
-Compatibility with some non-visual MCEdit filters (filters that only changes some nbt data) (if that is possible)
Hope that you like these ideas

Quote from Miao_Miao

Yes, what I was trying to say!
Another suggestion (if it is possible): for servers: add only a compatibility mod that does not affect any other players:
ex: My friends are noob and they can't install a mod, they just don't understand, but I want to use that command on a private server, without affecting any other players (cause in a forge server, the clients MUST have the mods of the server), so I can use /nbtedit and they cannot.
Another thing, ever thinked of an installer? 2 clicks:forge installed, other 2 clicks: in-game nbtedit!= 4 clicks for having lot of fun!

Quote from clickonme

You may have been asked this before, but I didn't really feel like looking through 58 pages of texts. Does this work with Mac? I'm assuming no since it uses NBTEdit.

Quote from Pieman862411

I am using a Mac. I would like to know if these mods are compatible with NBTEdit, because they are what I use.
Too Many Items
Zan's minimap
Optifine. Whenever I select these mods in setup with NBTEdit in the mods folder, I launch it and no Minecraft window shows up. I don't know what's wrong. Is it that Forge isn't compatible with these, or I'm doing something wrong? Once again, please help me

• No more commands. Instead, press a key to open a GUI/edit
• Tooltips (fetched from file/wiki) that display the meaning of each tag
• Better designed editor - hexadecimal byte/int mode, larger text editor
• Scrollable save states?
• Support for larger NBT edits - no more packet size crashes

Quote from sgavster

Do you ever have plans to make a Bukkit Plugin for this? It would be amazing if you did, it would make Map Making 100% easier!

Quote from Byciek

How about scoreboard, have you think about this?

Quote from Davidee

Using Optifine with Forge in 1.6.2 is pretty hard to set up, the instructions are here. As for the others, I believe TooManyItems has a special Forge-only version now - make sure you have that.

EDIT: I believe I'm going to rewrite this mod. Any requests? I saw some before, but here's what I'm thinking:

• No more commands. Instead, press a key to open a GUI/edit
• Tooltips (fetched from file/wiki) that display the meaning of each tag
• Better designed editor - hexadecimal byte/int mode, larger text editor
• Scrollable save states?
• Support for larger NBT edits - no more packet size crashes

Quote from Kelzak

This is pretty amazing! I hope one day you can get this mod to work without server-side.

Quote from Pieman862411

That would be really awesome. btw thx for the help! It's working perfectly now! :3

Quote from Byciek

If you edit just file, scoreboard in game will not update, so I think you need tell game to reload this file.

Quote from Byciek

If I could help, I will be pleased
I'm not genius but I know few trick about programing

Quote from Xannot

Is it available as a Tekkit modpack? I really need this on my Tekkit world!

Quote from Davidee

You can use this on a bukkit-forge server with MCPC+.

Hmm, so direct access to the scoreboard file? Why not just add file-editing support?

Quote from Gavenom

The file-editing support seems interesting, then we could edit things other than just entities in a world.

Quote from botboy10

We need a video tutorial... :/

I keep getting the same error, I have no mods installed other than forge.
*** MagicMinecraftLauncher 1.1.6 ***
LCP: ;C:\Users\britt\AppData\Roaming\.minecraft\versions\1.6.2-Forge9.10.0.804\1.6.2-Forge9.10.0.804.jar;C:\Users\britt\AppData\Roaming\.minecraft\libraries\net\minecraftforge\minecraftforge\9.10.0.804\minecraftforge-9.10.0.804.jar;C:\Users\britt\AppData\Roaming\.minecraft\libraries\net\minecraft\launchwrapper\1.3\launchwrapper-1.3.jar;C:\Users\britt\AppData\Roaming\.minecraft\libraries\org\ow2\asm\asm-all\4.1\asm-all-4.1.jar;C:\Users\britt\AppData\Roaming\.minecraft\libraries\net\sf\jopt-simple\jopt-simple\4.5\jopt-simple-4.5.jar;C:\Users\britt\AppData\Roaming\.minecraft\libraries\lzma\lzma\0.0.1\lzma-0.0.1.jar;C:\Users\britt\AppData\Roaming\.minecraft\libraries\com\paulscode\codecjorbis\20101023\codecjorbis-20101023.jar;C:\Users\britt\AppData\Roaming\.minecraft\libraries\com\paulscode\codecwav\20101023\codecwav-20101023.jar;C:\Users\britt\AppData\Roaming\.minecraft\libraries\com\paulscode\libraryjavasound\20101123\libraryjavasound-20101123.jar;C:\Users\britt\AppData\Roaming\.minecraft\libraries\com\paulscode\librarylwjglopenal\20100824\librarylwjglopenal-20100824.jar;C:\Users\britt\AppData\Roaming\.minecraft\libraries\com\paulscode\soundsystem\20120107\soundsystem-20120107.jar;C:\Users\britt\AppData\Roaming\.minecraft\libraries\org\lwjgl\lwjgl\lwjgl\2.9.0\lwjgl-2.9.0.jar;C:\Users\britt\AppData\Roaming\.minecraft\libraries\org\lwjgl\lwjgl\lwjgl_util\2.9.0\lwjgl_util-2.9.0.jar;C:\Users\britt\AppData\Roaming\.minecraft\libraries\argo\argo\2.25_fixed\argo-2.25_fixed.jar;C:\Users\britt\AppData\Roaming\.minecraft\libraries\org\bouncycastle\bcprov-jdk15on\1.47\bcprov-jdk15on-1.47.jar;C:\Users\britt\AppData\Roaming\.minecraft\libraries\com\google\guava\guava\14.0\guava-14.0.jar;C:\Users\britt\AppData\Roaming\.minecraft\libraries\org\apache\commons\commons-lang3\3.1\commons-lang3-3.1.jar;C:\Users\britt\AppData\Roaming\.minecraft\libraries\commons-io\commons-io\2.4\commons-io-2.4.jar;C:\Users\britt\AppData\Roaming\.minecraft\libraries\net\java\jinput\jinput\2.0.5\jinput-2.0.5.jar;C:\Users\britt\AppData\Roaming\.minecraft\libraries\net\java\jutils\jutils\1.0.0\jutils-1.0.0.jar;C:\Users\britt\AppData\Roaming\.minecraft\libraries\com\google\code\gson\gson\2.2.2\gson-2.2.2.jar;C:\Users\britt\AppData\Roaming\.minecraft\libraries\org\lwjgl\lwjgl\lwjgl\2.9.0\lwjgl-2.9.0.jar;C:\Users\britt\AppData\Roaming\.minecraft\libraries\org\lwjgl\lwjgl\lwjgl_util\2.9.0\lwjgl_util-2.9.0.jar;C:\Users\britt\AppData\Roaming\.minecraft\libraries\org\lwjgl\lwjgl\lwjgl-platform\2.9.0\lwjgl-platform-2.9.0-natives-windows.jar;C:\Users\britt\AppData\Roaming\.minecraft\libraries\org\lwjgl\lwjgl\lwjgl\2.9.1-nightly-20130708-debug3\lwjgl-2.9.1-nightly-20130708-debug3.jar;C:\Users\britt\AppData\Roaming\.minecraft\libraries\org\lwjgl\lwjgl\lwjgl_util\2.9.1-nightly-20130708-debug3\lwjgl_util-2.9.1-nightly-20130708-debug3.jar;C:\Users\britt\AppData\Roaming\.minecraft\libraries\org\lwjgl\lwjgl\lwjgl-platform\2.9.1-nightly-20130708-debug3\lwjgl-platform-2.9.1-nightly-20130708-debug3-natives-windows.jar;C:\Users\britt\AppData\Roaming\.minecraft\libraries\net\java\jinput\jinput-platform\2.0.5\jinput-platform-2.0.5-natives-windows.jar
MainClass: net.minecraft.launchwrapper.Launch
java.lang.ClassNotFoundException: net.minecraft.launchwrapper.Launch
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 java.lang.ClassLoader.loadClass(Unknown Source)
at magic.launcher.Launcher.main(Unknown Source)

Quote from Davidee

Although I guess external tools like NBTExplorer do it better - the main feature of this mod is that all changes take effect immediately.

Spoilers! Anyways, make sure you follow the special instructions for using Optifine/Magic Launcher with Forge (check their Magic Launcher topic).

Quote from botboy10

Yea, Sorry, I never figured out how to do spoilers. T_T
I'm checking to see if i can solve this problem real quick.