Hi! I decided to try installing forge mods, because I get bored having minecraft basics.

Then install the mod MoreMobsMod1.6.4 and try to start the launcher, Crash the game with this message after trying to start the launcher:

 

Launching game

Looking for old natives to clean up...

Unpacking natives to C:\Documents and Settings\Administrador\Datos de programa\.minecraft\versions\1.6.4-Forge9.11.1.953\1.6.4-Forge9.11.1.953-natives-145098041829897

Reconstructing virtual assets folder at C:\Documents and Settings\Administrador\Datos de programa\.minecraft\assets\virtual\legacy

Launching in C:\Documents and Settings\Administrador\Datos de programa\.minecraft

Half command: C:\Archivos de programa\Java\jre7\bin\javaw.exe -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xmx512M -Djava.library.path=C:\Documents and Settings\Administrador\Datos de programa\.minecraft\versions\1.6.4-Forge9.11.1.953\1.6.4-Forge9.11.1.953-natives-145098041829897 -cp C:\Documents and Settings\Administrador\Datos de programa\.minecraft\libraries\net\minecraftforge\minecraftforge\9.11.1.953\minecraftforge-9.11.1.953.jar;C:\Documents and Settings\Administrador\Datos de programa\.minecraft\libraries\net\minecraft\launchwrapper\1.8\launchwrapper-1.8.jar;C:\Documents and Settings\Administrador\Datos de programa\.minecraft\libraries\org\ow2\asm\asm-all\4.1\asm-all-4.1.jar;C:\Documents and Settings\Administrador\Datos de programa\.minecraft\libraries\org\scala-lang\scala-library\2.10.2\scala-library-2.10.2.jar;C:\Documents and Settings\Administrador\Datos de programa\.minecraft\libraries\org\scala-lang\scala-compiler\2.10.2\scala-compiler-2.10.2.jar;C:\Documents and Settings\Administrador\Datos de programa\.minecraft\libraries\lzma\lzma\0.0.1\lzma-0.0.1.jar;C:\Documents and Settings\Administrador\Datos de programa\.minecraft\libraries\net\sf\jopt-simple\jopt-simple\4.5\jopt-simple-4.5.jar;C:\Documents and Settings\Administrador\Datos de programa\.minecraft\libraries\com\paulscode\codecjorbis\20101023\codecjorbis-20101023.jar;C:\Documents and Settings\Administrador\Datos de programa\.minecraft\libraries\com\paulscode\codecwav\20101023\codecwav-20101023.jar;C:\Documents and Settings\Administrador\Datos de programa\.minecraft\libraries\com\paulscode\libraryjavasound\20101123\libraryjavasound-20101123.jar;C:\Documents and Settings\Administrador\Datos de programa\.minecraft\libraries\com\paulscode\librarylwjglopenal\20100824\librarylwjglopenal-20100824.jar;C:\Documents and Settings\Administrador\Datos de programa\.minecraft\libraries\com\paulscode\soundsystem\20120107\soundsystem-20120107.jar;C:\Documents and Settings\Administrador\Datos de programa\.minecraft\libraries\argo\argo\2.25_fixed\argo-2.25_fixed.jar;C:\Documents and Settings\Administrador\Datos de programa\.minecraft\libraries\org\bouncycastle\bcprov-jdk15on\1.47\bcprov-jdk15on-1.47.jar;C:\Documents and Settings\Administrador\Datos de programa\.minecraft\libraries\com\google\guava\guava\14.0\guava-14.0.jar;C:\Documents and Settings\Administrador\Datos de programa\.minecraft\libraries\org\apache\commons\commons-lang3\3.1\commons-lang3-3.1.jar;C:\Documents and Settings\Administrador\Datos de programa\.minecraft\libraries\commons-io\commons-io\2.4\commons-io-2.4.jar;C:\Documents and Settings\Administrador\Datos de programa\.minecraft\libraries\net\java\jinput\jinput\2.0.5\jinput-2.0.5.jar;C:\Documents and Settings\Administrador\Datos de programa\.minecraft\libraries\net\java\jutils\jutils\1.0.0\jutils-1.0.0.jar;C:\Documents and Settings\Administrador\Datos de programa\.minecraft\libraries\com\google\code\gson\gson\2.2.2\gson-2.2.2.jar;C:\Documents and Settings\Administrador\Datos de programa\.minecraft\libraries\org\lwjgl\lwjgl\lwjgl\2.9.0\lwjgl-2.9.0.jar;C:\Documents and Settings\Administrador\Datos de programa\.minecraft\libraries\org\lwjgl\lwjgl\lwjgl_util\2.9.0\lwjgl_util-2.9.0.jar;C:\Documents and Settings\Administrador\Datos de programa\.minecraft\versions\1.6.4-Forge9.11.1.953\1.6.4-Forge9.11.1.953.jar net.minecraft.launchwrapper.Launch

Running C:\Archivos de programa\Java\jre7\bin\javaw.exe -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xmx512M -Djava.library.path=C:\Documents and Settings\Administrador\Datos de programa\.minecraft\versions\1.6.4-Forge9.11.1.953\1.6.4-Forge9.11.1.953-natives-145098041829897 -cp C:\Documents and Settings\Administrador\Datos de programa\.minecraft\libraries\net\minecraftforge\minecraftforge\9.11.1.953\minecraftforge-9.11.1.953.jar;C:\Documents and Settings\Administrador\Datos de programa\.minecraft\libraries\net\minecraft\launchwrapper\1.8\launchwrapper-1.8.jar;C:\Documents and Settings\Administrador\Datos de programa\.minecraft\libraries\org\ow2\asm\asm-all\4.1\asm-all-4.1.jar;C:\Documents and Settings\Administrador\Datos de programa\.minecraft\libraries\org\scala-lang\scala-library\2.10.2\scala-library-2.10.2.jar;C:\Documents and Settings\Administrador\Datos de programa\.minecraft\libraries\org\scala-lang\scala-compiler\2.10.2\scala-compiler-2.10.2.jar;C:\Documents and Settings\Administrador\Datos de programa\.minecraft\libraries\lzma\lzma\0.0.1\lzma-0.0.1.jar;C:\Documents and Settings\Administrador\Datos de programa\.minecraft\libraries\net\sf\jopt-simple\jopt-simple\4.5\jopt-simple-4.5.jar;C:\Documents and Settings\Administrador\Datos de programa\.minecraft\libraries\com\paulscode\codecjorbis\20101023\codecjorbis-20101023.jar;C:\Documents and Settings\Administrador\Datos de programa\.minecraft\libraries\com\paulscode\codecwav\20101023\codecwav-20101023.jar;C:\Documents and Settings\Administrador\Datos de programa\.minecraft\libraries\com\paulscode\libraryjavasound\20101123\libraryjavasound-20101123.jar;C:\Documents and Settings\Administrador\Datos de programa\.minecraft\libraries\com\paulscode\librarylwjglopenal\20100824\librarylwjglopenal-20100824.jar;C:\Documents and Settings\Administrador\Datos de programa\.minecraft\libraries\com\paulscode\soundsystem\20120107\soundsystem-20120107.jar;C:\Documents and Settings\Administrador\Datos de programa\.minecraft\libraries\argo\argo\2.25_fixed\argo-2.25_fixed.jar;C:\Documents and Settings\Administrador\Datos de programa\.minecraft\libraries\org\bouncycastle\bcprov-jdk15on\1.47\bcprov-jdk15on-1.47.jar;C:\Documents and Settings\Administrador\Datos de programa\.minecraft\libraries\com\google\guava\guava\14.0\guava-14.0.jar;C:\Documents and Settings\Administrador\Datos de programa\.minecraft\libraries\org\apache\commons\commons-lang3\3.1\commons-lang3-3.1.jar;C:\Documents and Settings\Administrador\Datos de programa\.minecraft\libraries\commons-io\commons-io\2.4\commons-io-2.4.jar;C:\Documents and Settings\Administrador\Datos de programa\.minecraft\libraries\net\java\jinput\jinput\2.0.5\jinput-2.0.5.jar;C:\Documents and Settings\Administrador\Datos de programa\.minecraft\libraries\net\java\jutils\jutils\1.0.0\jutils-1.0.0.jar;C:\Documents and Settings\Administrador\Datos de programa\.minecraft\libraries\com\google\code\gson\gson\2.2.2\gson-2.2.2.jar;C:\Documents and Settings\Administrador\Datos de programa\.minecraft\libraries\org\lwjgl\lwjgl\lwjgl\2.9.0\lwjgl-2.9.0.jar;C:\Documents and Settings\Administrador\Datos de programa\.minecraft\libraries\org\lwjgl\lwjgl\lwjgl_util\2.9.0\lwjgl_util-2.9.0.jar;C:\Documents and Settings\Administrador\Datos de programa\.minecraft\versions\1.6.4-Forge9.11.1.953\1.6.4-Forge9.11.1.953.jar net.minecraft.launchwrapper.Launch --username FranfutX --session - --version 1.6.4-Forge9.11.1.953 --gameDir C:\Documents and Settings\Administrador\Datos de programa\.minecraft --assetsDir C:\Documents and Settings\Administrador\Datos de programa\.minecraft\assets\virtual\legacy --tweakClass cpw.mods.fml.common.launcher.FMLTweaker

Client> dic 13, 2013 2:10:45 AM net.minecraft.launchwrapper.LogWrapper log

Client> Información: Loading tweak class name cpw.mods.fml.common.launcher.FMLTweaker

Client> dic 13, 2013 2:10:45 AM net.minecraft.launchwrapper.LogWrapper log

Client> Información: Using primary tweak class name cpw.mods.fml.common.launcher.FMLTweaker

Client> dic 13, 2013 2:10:45 AM net.minecraft.launchwrapper.LogWrapper log

Client> Información: Calling tweak class cpw.mods.fml.common.launcher.FMLTweaker

Client> 2013-12-13 02:10:45 [información] [ForgeModLoader] Forge Mod Loader version 6.4.45.953 for Minecraft 1.6.4 loading

Client> 2013-12-13 02:10:45 [información] [ForgeModLoader] Java is Java HotSpot Client VM, version 1.7.0_45, running on Windows XP:x86:5.1, installed at C:\Archivos de programa\Java\jre7

Client> 2013-12-13 02:10:45 [información] [ForgeModLoader] Loading tweak class name cpw.mods.fml.common.launcher.FMLInjectionAndSortingTweaker

Client> 2013-12-13 02:10:45 [información] [ForgeModLoader] Loading tweak class name cpw.mods.fml.common.launcher.FMLDeobfTweaker

Client> 2013-12-13 02:10:45 [información] [ForgeModLoader] Calling tweak class cpw.mods.fml.common.launcher.FMLInjectionAndSortingTweaker

Client> 2013-12-13 02:10:45 [información] [ForgeModLoader] Calling tweak class cpw.mods.fml.common.launcher.FMLInjectionAndSortingTweaker

Client> 2013-12-13 02:10:45 [información] [ForgeModLoader] Calling tweak class cpw.mods.fml.relauncher.CoreModManager$FMLPluginWrapper

Client> 2013-12-13 02:10:46 [información] [sTDOUT] Loaded 40 rules from AccessTransformer config file fml_at.cfg

Client> 2013-12-13 02:10:48 [información] [ForgeModLoader] Found valid fingerprint for Minecraft Forge. Certificate fingerprint e3c3d50c7c986df74c645c0ac54639741c90a557

Client> 2013-12-13 02:10:49 [Grave] [ForgeModLoader] The minecraft jar file:/C:/Documents%20and%20Settings/Administrador/Datos%20de%20programa/.minecraft/versions/1.6.4-Forge9.11.1.953/1.6.4-Forge9.11.1.953.jar!/net/minecraft/client/ClientBrandRetriever.class appears to be corrupt! There has been CRITICAL TAMPERING WITH MINECRAFT, it is highly unlikely minecraft will work! STOP NOW, get a clean copy and try again!

Client> 2013-12-13 02:10:49 [Grave] [ForgeModLoader] For your safety, FML will not launch minecraft. You will need to fetch a clean version of the minecraft jar file

Client> 2013-12-13 02:10:49 [Grave] [ForgeModLoader] Technical information: The class net.minecraft.client.ClientBrandRetriever should have been associated with the minecraft jar file, and should have returned us a valid, intact minecraft jar location. This did not work. Either you have modified the minecraft jar file (if so run the forge installer again), or you are using a base editing jar that is changing this class (and likely others too). If you REALLY want to run minecraft in this configuration, add the flag -Dfml.ignoreInvalidMinecraftCertificates=true to the 'JVM settings' in your launcher profile.

Game ended with bad state (exit code 1)

Ignoring visibility rule and showing launcher due to a game crash

Deleting C:\Documents and Settings\Administrador\Datos de programa\.minecraft\versions\1.6.4-Forge9.11.1.953\1.6.4-Forge9.11.1.953-natives-145098041829897

 

 

I really need help please

(I delete MetaINF so thats not the problem)

(Sorry for my bad english, im from Argentina)

Thanks a lot see yaa!

 

I reinstall forge three times!

You've edited your jar, stop doing that, Delete the Forge folder and the 1.6.4 folder in your versions folder.

Reinstall 1.6.4 and reinstall Forge.

Im try to run the mod without touching the .jar and it doesnt work... The game run without any mod, Only three of the same forge. With other 3 mod the launcher crash so i dont now

Without modified the 1.6.4forge.jar This message is on the launcher

 

---- Minecraft Crash Report ----

// I'm sorry, Dave.

 

Time: 13/12/13 02:35

Description: There was a severe problem during mod loading that has caused the game to fail

 

cpw.mods.fml.common.LoaderException: java.lang.ClassNotFoundException: modid.moremobsmod.core.MoreMobsMod

at cpw.mods.fml.common.LoadController.transition(LoadController.java:156)

at cpw.mods.fml.common.Loader.loadMods(Loader.java:521)

at cpw.mods.fml.client.FMLClientHandler.beginMinecraftLoading(FMLClientHandler.java:183)

at net.minecraft.client.Minecraft.func_71384_a(Minecraft.java:473)

at net.minecraft.client.Minecraft.func_99999_d(Minecraft.java:808)

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:131)

at net.minecraft.launchwrapper.Launch.main(Launch.java:27)

Caused by: java.lang.ClassNotFoundException: modid.moremobsmod.core.MoreMobsMod

at net.minecraft.launchwrapper.LaunchClassLoader.findClass(LaunchClassLoader.java:186)

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

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

at cpw.mods.fml.common.ModClassLoader.loadClass(ModClassLoader.java:61)

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

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

at cpw.mods.fml.common.FMLModContainer.constructMod(FMLModContainer.java:462)

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:201)

at cpw.mods.fml.common.LoadController.propogateStateMessage(LoadController.java:181)

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:112)

at cpw.mods.fml.common.Loader.loadMods(Loader.java:511)

... 10 more

Caused by: java.lang.NullPointerException

at net.minecraft.launchwrapper.LaunchClassLoader.findClass(LaunchClassLoader.java:178)

... 38 more

 

 

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

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

 

-- System Details --

Details:

Minecraft Version: 1.6.4

Operating System: Windows XP (x86) version 5.1

Java Version: 1.7.0_45, Oracle Corporation

Java VM Version: Java HotSpot Client VM (mixed mode, sharing), Oracle Corporation

Memory: 51942432 bytes (49 MB) / 144535552 bytes (137 MB) up to 518979584 bytes (494 MB)

JVM Flags: 2 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -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 v8.11 FML v6.4.45.953 Minecraft Forge 9.11.1.953 4 mods loaded, 4 mods active

mcp{8.09} [Minecraft Coder Pack] (minecraft.jar) Unloaded->Constructed

FML{6.4.45.953} [Forge Mod Loader] (minecraftforge-9.11.1.953.jar) Unloaded->Constructed

Forge{9.11.1.953} [Minecraft Forge] (minecraftforge-9.11.1.953.jar) Unloaded->Constructed

MoreMobsMod{100.0.2} [MoreMobsMod] (modid) Unloaded->Errored