Minecraft Forums

Ok so i tried to play mc after a long time, I updated my java to Version 8 update 45, I can launch the game with 1.8 version, however when i try to launch 1.7.2 Forge it gave this..----->

*** MagicMinecraftLauncher 1.2.5 ***
LCP: C:\Users\Hi\AppData\Roaming\.minecraft\mods\insall files\ChatBubbles--.zip;C:\Users\Hi\AppData\Roaming\.minecraft\mods\insall files\Mo' Bends-1.7.2_08.jar;C:\Users\Hi\AppData\Roaming\.minecraft\mods\insall files\M-Ore 1.7.2.jar;C:\Users\Hi\AppData\Roaming\.minecraft\mods\insall files\mods\Ruins-1.7.2.jar;C:\Users\Hi\AppData\Roaming\.minecraft\mods\insall files\MrCrayfishFurnitureModv3.3.2(1.7.2).jar;C:\Users\Hi\AppData\Roaming\.minecraft\mods\install files\scenter-1.7.2-3.1.0.jar;C:\Users\Hi\AppData\Roaming\.minecraft\versions\1.7.2-Forge10.12.2.1121\1.7.2-Forge10.12.2.1121.jar;C:\Users\Hi\AppData\Roaming\.minecraft\libraries\net\minecraftforge\forge\1.7.2-10.12.2.1121\forge-1.7.2-10.12.2.1121.jar;C:\Users\Hi\AppData\Roaming\.minecraft\libraries\net\minecraft\launchwrapper\1.9\launchwrapper-1.9.jar;C:\Users\Hi\AppData\Roaming\.minecraft\libraries\org\ow2\asm\asm-all\4.1\asm-all-4.1.jar;C:\Users\Hi\AppData\Roaming\.minecraft\libraries\org\scala-lang\scala-library\2.10.2\scala-library-2.10.2.jar;C:\Users\Hi\AppData\Roaming\.minecraft\libraries\org\scala-lang\scala-compiler\2.10.2\scala-compiler-2.10.2.jar;C:\Users\Hi\AppData\Roaming\.minecraft\libraries\java3d\vecmath\1.3.1\vecmath-1.3.1.jar;C:\Users\Hi\AppData\Roaming\.minecraft\libraries\net\sf\trove4j\trove4j\3.0.3\trove4j-3.0.3.jar;C:\Users\Hi\AppData\Roaming\.minecraft\libraries\com\ibm\icu\icu4j-core-mojang\51.2\icu4j-core-mojang-51.2.jar;C:\Users\Hi\AppData\Roaming\.minecraft\libraries\net\sf\jopt-simple\jopt-simple\4.5\jopt-simple-4.5.jar;C:\Users\Hi\AppData\Roaming\.minecraft\libraries\lzma\lzma\0.0.1\lzma-0.0.1.jar;C:\Users\Hi\AppData\Roaming\.minecraft\libraries\com\paulscode\codecjorbis\20101023\codecjorbis-20101023.jar;C:\Users\Hi\AppData\Roaming\.minecraft\libraries\com\paulscode\codecwav\20101023\codecwav-20101023.jar;C:\Users\Hi\AppData\Roaming\.minecraft\libraries\com\paulscode\libraryjavasound\20101123\libraryjavasound-20101123.jar;C:\Users\Hi\AppData\Roaming\.minecraft\libraries\com\paulscode\librarylwjglopenal\20100824\librarylwjglopenal-20100824.jar;C:\Users\Hi\AppData\Roaming\.minecraft\libraries\com\paulscode\soundsystem\20120107\soundsystem-20120107.jar;C:\Users\Hi\AppData\Roaming\.minecraft\libraries\io\netty\netty-all\4.0.10.Final\netty-all-4.0.10.Final.jar;C:\Users\Hi\AppData\Roaming\.minecraft\libraries\com\google\guava\guava\15.0\guava-15.0.jar;C:\Users\Hi\AppData\Roaming\.minecraft\libraries\org\apache\commons\commons-lang3\3.1\commons-lang3-3.1.jar;C:\Users\Hi\AppData\Roaming\.minecraft\libraries\commons-io\commons-io\2.4\commons-io-2.4.jar;C:\Users\Hi\AppData\Roaming\.minecraft\libraries\net\java\jinput\jinput\2.0.5\jinput-2.0.5.jar;C:\Users\Hi\AppData\Roaming\.minecraft\libraries\net\java\jutils\jutils\1.0.0\jutils-1.0.0.jar;C:\Users\Hi\AppData\Roaming\.minecraft\libraries\com\google\code\gson\gson\2.2.4\gson-2.2.4.jar;C:\Users\Hi\AppData\Roaming\.minecraft\libraries\com\mojang\authlib\1.3\authlib-1.3.jar;C:\Users\Hi\AppData\Roaming\.minecraft\libraries\org\apache\logging\log4j\log4j-api\2.0-beta9\log4j-api-2.0-beta9.jar;C:\Users\Hi\AppData\Roaming\.minecraft\libraries\org\apache\logging\log4j\log4j-core\2.0-beta9\log4j-core-2.0-beta9.jar;C:\Users\Hi\AppData\Roaming\.minecraft\libraries\org\lwjgl\lwjgl\lwjgl\2.9.0\lwjgl-2.9.0.jar;C:\Users\Hi\AppData\Roaming\.minecraft\libraries\org\lwjgl\lwjgl\lwjgl_util\2.9.0\lwjgl_util-2.9.0.jar;C:\Users\Hi\AppData\Roaming\.minecraft\libraries\org\lwjgl\lwjgl\lwjgl-platform\2.9.0\lwjgl-platform-2.9.0-natives-windows.jar;C:\Users\Hi\AppData\Roaming\.minecraft\libraries\net\java\jinput\jinput-platform\2.0.5\jinput-platform-2.0.5-natives-windows.jar
ShowLog: true
WindowSize: 1280x720
WindowMaximized: true
InactiveExtMods: millenaire-5.2b1.jar
MainClass: net.minecraft.launchwrapper.Launch
Restoring disabled mods: mods
Disable inactive mods: mods
Disabled: millenaire-5.2b1.jar
Restoring disabled mods: coremods
Disable inactive mods: coremods
[17:17:32] [main/INFO]: Loading tweak class name cpw.mods.fml.common.launcher.FMLTweaker
[17:17:32] [main/INFO]: Using primary tweak class name cpw.mods.fml.common.launcher.FMLTweaker
[17:17:32] [main/INFO]: Calling tweak class cpw.mods.fml.common.launcher.FMLTweaker
[17:17:32] [main/INFO]: Forge Mod Loader version 7.2.211.1121 for Minecraft 1.7.2 loading
[17:17:32] [main/INFO]: Java is Java HotSpot(TM) Client VM, version 1.8.0_45, running on Windows 8:x86:6.2, installed at C:\Program Files\Java\jre1.8.0_45
[17:17:32] [main/INFO]: Loading tweaker mc.ambientocclusion.xrayinstaller.XRayTweaker from XRay-1.7.2-v9.2.jar
[17:17:32] [main/INFO]: Loading tweak class name cpw.mods.fml.common.launcher.FMLInjectionAndSortingTweaker
[17:17:32] [main/INFO]: Loading tweak class name mc.ambientocclusion.xrayinstaller.XRayTweaker
[17:17:32] [main/INFO]: Loading tweak class name cpw.mods.fml.common.launcher.FMLDeobfTweaker
[17:17:32] [main/INFO]: Calling tweak class cpw.mods.fml.common.launcher.FMLInjectionAndSortingTweaker
[17:17:32] [main/ERROR]: Unable to launch
java.util.ConcurrentModificationException
at java.util.ArrayList$Itr.checkForComodification(Unknown Source) ~[?:1.8.0_45]
at java.util.ArrayList$Itr.remove(Unknown Source) ~[?:1.8.0_45]
at net.minecraft.launchwrapper.Launch.launch(Launch.java:117) [launchwrapper-1.9.jar:?]
at net.minecraft.launchwrapper.Launch.main(Launch.java:28) [launchwrapper-1.9.jar:?]
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_45]
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) ~[?:1.8.0_45]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) ~[?:1.8.0_45]
at java.lang.reflect.Method.invoke(Unknown Source) ~[?:1.8.0_45]
at magic.launcher.Launcher.main(SourceFile:207) [MagicLauncher_1.2.5.exe:?]
*** Main class main() finished ***

So i then tried to find a method to resolve which brought me to
http://www.minecraftforum.net/forums/mapping-and-modding/minecraft-mods/2206446-forge-1-6-4-1-7-2-java-8-compatibility-patch

I did what was instructed I deleted my META-INF and download 1.7.2 CoreModManager.class and put it in the relauncher Folder
Then when i again tested it gave me this -------->

*** Starting Minecraft ***
Profile: Forge
Environment: 1.7.2-Forge10.12.2.1121
Minecraft version: 1.7.2
Minecraft.jar: 1.7.2-Forge10.12.2.1121.jar
Mods:
scenter-1.7.2-3.1.0.jar
MrCrayfishFurnitureModv3.3.2(1.7.2).jar
Ruins-1.7.2.jar
M-Ore 1.7.2.jar
Mo' Bends-1.7.2_08.jar
ChatBubbles--.zip
Inactive external mods:
millenaire-5.2b1.jar
Show log: true
WindowSize: 1280x720
WindowMaximized: true
Java path: C:\Program Files\Java\jre1.8.0_45\bin\java
Memory: 1024 MB
LauncherPath: /C:/Users/Hi/AppData/Roaming/.minecraft/minecraft launcher/MagicLauncher_1.2.5.exe
Main class: net.minecraft.launchwrapper.Launch
*** MagicMinecraftLauncher 1.2.5 ***
LCP: C:\Users\Hi\AppData\Roaming\.minecraft\mods\insall files\ChatBubbles--.zip;C:\Users\Hi\AppData\Roaming\.minecraft\mods\insall files\Mo' Bends-1.7.2_08.jar;C:\Users\Hi\AppData\Roaming\.minecraft\mods\insall files\M-Ore 1.7.2.jar;C:\Users\Hi\AppData\Roaming\.minecraft\mods\insall files\mods\Ruins-1.7.2.jar;C:\Users\Hi\AppData\Roaming\.minecraft\mods\insall files\MrCrayfishFurnitureModv3.3.2(1.7.2).jar;C:\Users\Hi\AppData\Roaming\.minecraft\mods\install files\scenter-1.7.2-3.1.0.jar;C:\Users\Hi\AppData\Roaming\.minecraft\versions\1.7.2-Forge10.12.2.1121\1.7.2-Forge10.12.2.1121.jar;C:\Users\Hi\AppData\Roaming\.minecraft\libraries\net\minecraftforge\forge\1.7.2-10.12.2.1121\forge-1.7.2-10.12.2.1121.jar;C:\Users\Hi\AppData\Roaming\.minecraft\libraries\net\minecraft\launchwrapper\1.9\launchwrapper-1.9.jar;C:\Users\Hi\AppData\Roaming\.minecraft\libraries\org\ow2\asm\asm-all\4.1\asm-all-4.1.jar;C:\Users\Hi\AppData\Roaming\.minecraft\libraries\org\scala-lang\scala-library\2.10.2\scala-library-2.10.2.jar;C:\Users\Hi\AppData\Roaming\.minecraft\libraries\org\scala-lang\scala-compiler\2.10.2\scala-compiler-2.10.2.jar;C:\Users\Hi\AppData\Roaming\.minecraft\libraries\java3d\vecmath\1.3.1\vecmath-1.3.1.jar;C:\Users\Hi\AppData\Roaming\.minecraft\libraries\net\sf\trove4j\trove4j\3.0.3\trove4j-3.0.3.jar;C:\Users\Hi\AppData\Roaming\.minecraft\libraries\com\ibm\icu\icu4j-core-mojang\51.2\icu4j-core-mojang-51.2.jar;C:\Users\Hi\AppData\Roaming\.minecraft\libraries\net\sf\jopt-simple\jopt-simple\4.5\jopt-simple-4.5.jar;C:\Users\Hi\AppData\Roaming\.minecraft\libraries\lzma\lzma\0.0.1\lzma-0.0.1.jar;C:\Users\Hi\AppData\Roaming\.minecraft\libraries\com\paulscode\codecjorbis\20101023\codecjorbis-20101023.jar;C:\Users\Hi\AppData\Roaming\.minecraft\libraries\com\paulscode\codecwav\20101023\codecwav-20101023.jar;C:\Users\Hi\AppData\Roaming\.minecraft\libraries\com\paulscode\libraryjavasound\20101123\libraryjavasound-20101123.jar;C:\Users\Hi\AppData\Roaming\.minecraft\libraries\com\paulscode\librarylwjglopenal\20100824\librarylwjglopenal-20100824.jar;C:\Users\Hi\AppData\Roaming\.minecraft\libraries\com\paulscode\soundsystem\20120107\soundsystem-20120107.jar;C:\Users\Hi\AppData\Roaming\.minecraft\libraries\io\netty\netty-all\4.0.10.Final\netty-all-4.0.10.Final.jar;C:\Users\Hi\AppData\Roaming\.minecraft\libraries\com\google\guava\guava\15.0\guava-15.0.jar;C:\Users\Hi\AppData\Roaming\.minecraft\libraries\org\apache\commons\commons-lang3\3.1\commons-lang3-3.1.jar;C:\Users\Hi\AppData\Roaming\.minecraft\libraries\commons-io\commons-io\2.4\commons-io-2.4.jar;C:\Users\Hi\AppData\Roaming\.minecraft\libraries\net\java\jinput\jinput\2.0.5\jinput-2.0.5.jar;C:\Users\Hi\AppData\Roaming\.minecraft\libraries\net\java\jutils\jutils\1.0.0\jutils-1.0.0.jar;C:\Users\Hi\AppData\Roaming\.minecraft\libraries\com\google\code\gson\gson\2.2.4\gson-2.2.4.jar;C:\Users\Hi\AppData\Roaming\.minecraft\libraries\com\mojang\authlib\1.3\authlib-1.3.jar;C:\Users\Hi\AppData\Roaming\.minecraft\libraries\org\apache\logging\log4j\log4j-api\2.0-beta9\log4j-api-2.0-beta9.jar;C:\Users\Hi\AppData\Roaming\.minecraft\libraries\org\apache\logging\log4j\log4j-core\2.0-beta9\log4j-core-2.0-beta9.jar;C:\Users\Hi\AppData\Roaming\.minecraft\libraries\org\lwjgl\lwjgl\lwjgl\2.9.0\lwjgl-2.9.0.jar;C:\Users\Hi\AppData\Roaming\.minecraft\libraries\org\lwjgl\lwjgl\lwjgl_util\2.9.0\lwjgl_util-2.9.0.jar;C:\Users\Hi\AppData\Roaming\.minecraft\libraries\org\lwjgl\lwjgl\lwjgl-platform\2.9.0\lwjgl-platform-2.9.0-natives-windows.jar;C:\Users\Hi\AppData\Roaming\.minecraft\libraries\net\java\jinput\jinput-platform\2.0.5\jinput-platform-2.0.5-natives-windows.jar
ShowLog: true
WindowSize: 1280x720
WindowMaximized: true
InactiveExtMods: millenaire-5.2b1.jar
MainClass: net.minecraft.launchwrapper.Launch
Restoring disabled mods: mods
Disable inactive mods: mods
Disabled: millenaire-5.2b1.jar
Restoring disabled mods: coremods
Disable inactive mods: coremods
[17:22:27] [main/INFO]: Loading tweak class name cpw.mods.fml.common.launcher.FMLTweaker
[17:22:28] [main/INFO]: Using primary tweak class name cpw.mods.fml.common.launcher.FMLTweaker
[17:22:28] [main/INFO]: Calling tweak class cpw.mods.fml.common.launcher.FMLTweaker
[17:22:28] [main/INFO]: Forge Mod Loader version 7.2.211.1121 for Minecraft 1.7.2 loading
[17:22:28] [main/INFO]: Java is Java HotSpot(TM) Client VM, version 1.8.0_45, running on Windows 8:x86:6.2, installed at C:\Program Files\Java\jre1.8.0_45
[17:22:28] [main/INFO]: Loading tweaker mc.ambientocclusion.xrayinstaller.XRayTweaker from XRay-1.7.2-v9.2.jar
[17:22:28] [main/INFO]: Loading tweak class name cpw.mods.fml.common.launcher.FMLInjectionAndSortingTweaker
[17:22:28] [main/INFO]: Loading tweak class name mc.ambientocclusion.xrayinstaller.XRayTweaker
[17:22:28] [main/INFO]: Loading tweak class name cpw.mods.fml.common.launcher.FMLDeobfTweaker
[17:22:28] [main/INFO]: Calling tweak class cpw.mods.fml.common.launcher.FMLInjectionAndSortingTweaker
[17:22:28] [main/INFO]: Calling tweak class cpw.mods.fml.common.launcher.FMLInjectionAndSortingTweaker
[17:22:28] [main/INFO]: Calling tweak class mc.ambientocclusion.xrayinstaller.XRayTweaker
XRayTweaker: injectIntoClassLoader
XRayTweaker: from jar:file:/C:/Users/Hi/AppData/Roaming/.minecraft/mods/1.7.2/XRay-1.7.2-v9.2.jar!/mc/ambientocclusion/xrayinstaller/XRayTweaker.class
XRayTweaker: xray version = v9.2 (589826)
XRayTweaker: target version = 1.7.2
XRayTweaker: launchjar = file:/C:/Users/Hi/AppData/Roaming/.minecraft/versions/1.7.2-Forge10.12.2.1121/1.7.2-Forge10.12.2.1121.jar
XRayTweaker: detected minecraft version = 1.7.2
[17:22:28] [main/INFO]: Calling tweak class cpw.mods.fml.relauncher.CoreModManager$FMLPluginWrapper
[17:22:29] [main/INFO]: Found valid fingerprint for Minecraft. Certificate fingerprint cd99959656f753dc28d863b46769f7f8fbaefcfc
[17:22:29] [main/ERROR]: FML appears to be missing any signature data. This is not a good thing
[17:22:29] [main/INFO]: Calling tweak class cpw.mods.fml.relauncher.CoreModManager$FMLPluginWrapper
[17:22:29] [main/INFO]: Calling tweak class cpw.mods.fml.common.launcher.FMLDeobfTweaker
[17:22:29] [main/INFO]: Launching wrapped minecraft {net.minecraft.client.main.Main}
[17:22:31] [main/INFO]: Setting user: Abc
[17:22:31] [Client thread/INFO]: LWJGL Version: 2.9.0
[17:22:31] [Client thread/ERROR]: Couldn't set icon
javax.imageio.IIOException: Can't read input file!
at javax.imageio.ImageIO.read(Unknown Source) ~[?:1.8.0_45]
at net.minecraft.client.Minecraft.func_110439_b(Minecraft.java:583) ~[azd.class:?]
at net.minecraft.client.Minecraft.func_71384_a(Minecraft.java:415) [azd.class:?]
at net.minecraft.client.Minecraft.func_99999_d(Minecraft.java:815) [azd.class:?]
at net.minecraft.client.main.Main.main(SourceFile:103) [Main.class:?]
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_45]
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) ~[?:1.8.0_45]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) ~[?:1.8.0_45]
at java.lang.reflect.Method.invoke(Unknown Source) ~[?:1.8.0_45]
at net.minecraft.launchwrapper.Launch.launch(Launch.java:134) [launchwrapper-1.9.jar:?]
at net.minecraft.launchwrapper.Launch.main(Launch.java:28) [launchwrapper-1.9.jar:?]
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_45]
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) ~[?:1.8.0_45]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) ~[?:1.8.0_45]
at java.lang.reflect.Method.invoke(Unknown Source) ~[?:1.8.0_45]
at magic.launcher.Launcher.main(SourceFile:207) [MagicLauncher_1.2.5.exe:?]
[17:22:32] [Client thread/INFO]: Attempting early MinecraftForge initialization
[17:22:32] [Client thread/INFO]: MinecraftForge v10.12.2.1121 Initialized
[17:22:32] [Client thread/INFO]: Replaced 182 ore recipies
[17:22:32] [Client thread/INFO]: Completed early MinecraftForge initialization
[17:22:32] [Client thread/INFO]: Searching C:\Users\Hi\AppData\Roaming\.minecraft\mods for mods
[17:22:32] [Client thread/INFO]: Also searching C:\Users\Hi\AppData\Roaming\.minecraft\mods\1.7.2 for mods
[17:22:32] [Client thread/ERROR]: FML has detected a mod that is using a package name based on 'net.minecraft.src' : net.minecraft.src.FMLRenderAccessLibrary. This is generally a severe programming error. There should be no mod code in the minecraft namespace. MOVE YOUR MOD! If you're in eclipse, select your source code and 'refactor' it into a new package. Go on. DO IT NOW!
[17:22:32] [Client thread/ERROR]: FML has detected a mod that is using a package name based on 'net.minecraft.src' : net.minecraft.src.Start. This is generally a severe programming error. There should be no mod code in the minecraft namespace. MOVE YOUR MOD! If you're in eclipse, select your source code and 'refactor' it into a new package. Go on. DO IT NOW!
[17:22:33] [Client thread/INFO]: Mod examplemod is missing the required element 'name'. Substituting examplemod
[17:22:34] [Client thread/INFO]: Forge Mod Loader has identified 13 mods to load
[17:22:34] [Client thread/INFO]: FML has found a non-mod file forge-1.7.2-10.12.2.1121-installer.jar in your mods directory. It will now be injected into your classpath. This could severe stability issues, it should be removed if possible.
Error reading the donators list for MrCrayfish's Furniture Mod.
[17:22:35] [Client thread/INFO]: Reloading ResourceManager: Default, FMLFileResourcePack:Forge Mod Loader, FMLFileResourcePack:Minecraft Forge, FMLFileResourcePack:ChatBubbles, FMLFileResourcePack:Mo' Bends, FMLFileResourcePack:more, FMLFileResourcePack:Ruins Spawning System, FMLFileResourcePack:ﾧ6MrCrayfish's Furniture Mod, FMLFileResourcePack:Scenter, FMLFileResourcePack:ComputerCraft, FMLFileResourcePack:examplemod, FMLFileResourcePack:The Herobrine Mod, FMLFileResourcePack:Localized Weather & Storms, faithful32pack.zip, LB Photo Realism x16 10.0.0-converted-1374012701357.zip
[17:22:35] [Client thread/WARN]: ResourcePack: ignored non-lowercase namespace: %s in %s
[17:22:35] [Client thread/WARN]: ResourcePack: ignored non-lowercase namespace: %s in %s
---- Minecraft Crash Report ----
// Hi. I'm Minecraft, and I'm a crashaholic.

Time: 7/26/15 5:22 PM
Description: Initializing game

java.lang.NoClassDefFoundError: modconfig/IConfigCategory
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Unknown Source)
at cpw.mods.fml.common.FMLModContainer.constructMod(FMLModContainer.java:420)
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:47)
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:208)
at cpw.mods.fml.common.LoadController.propogateStateMessage(LoadController.java:187)
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:47)
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:118)
at cpw.mods.fml.common.Loader.loadMods(Loader.java:491)
at cpw.mods.fml.client.FMLClientHandler.beginMinecraftLoading(FMLClientHandler.java:204)
at net.minecraft.client.Minecraft.func_71384_a(Minecraft.java:467)
at net.minecraft.client.Minecraft.func_99999_d(Minecraft.java:815)
at net.minecraft.client.main.Main.main(SourceFile:103)
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:134)
at net.minecraft.launchwrapper.Launch.main(Launch.java:28)
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 magic.launcher.Launcher.main(SourceFile:207)
Caused by: java.lang.ClassNotFoundException: modconfig.IConfigCategory
at net.minecraft.launchwrapper.LaunchClassLoader.findClass(LaunchClassLoader.java:188)
at java.lang.ClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
... 40 more
Caused by: java.lang.NullPointerException
at net.minecraft.launchwrapper.LaunchClassLoader.findClass(LaunchClassLoader.java:180)
... 42 more

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

-- Head --
Stacktrace:
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Unknown Source)
at cpw.mods.fml.common.FMLModContainer.constructMod(FMLModContainer.java:420)
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:47)
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:208)
at cpw.mods.fml.common.LoadController.propogateStateMessage(LoadController.java:187)
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:47)
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:118)
at cpw.mods.fml.common.Loader.loadMods(Loader.java:491)
at cpw.mods.fml.client.FMLClientHandler.beginMinecraftLoading(FMLClientHandler.java:204)
at net.minecraft.client.Minecraft.func_71384_a(Minecraft.java:467)

-- Initialization --
Details:
Stacktrace:
at net.minecraft.client.Minecraft.func_99999_d(Minecraft.java:815)
at net.minecraft.client.main.Main.main(SourceFile:103)
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:134)
at net.minecraft.launchwrapper.Launch.main(Launch.java:28)
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 magic.launcher.Launcher.main(SourceFile:207)

I have made sure i have follow them correctly

Quote from KenSha105»

I have made sure i have follow them correctly

1.7.2 version, not 1.7.10

This can actually cause tons of conflicts, see my sig

Still didn't get an answer :/

Quote from KenSha105»

Still didn't get an answer :/

Download CoroUtil to fix.

http://coros.us/mods/coroutil

The thing which u suggested to use for fixin is only for v 1.7.10 meanwhile i am using 1.7.2 mods and version
So :/

CoroUtil is for 1.7.10