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My Minecraft Doesnt have any mods Yet except forge but it Keeps Crashing. I am using the Minecraft Launcher called Multimc and It crashes with this left

MultiMC version: 0.4.5

Minecraft folder is:
C:/Users/Edwin/Documents/Games/Minecraft/instances/1.7.2/minecraft

Java path is:
C:/Program Files/Java/jre1.8.0_40/bin/javaw.exe

Java Arguments:
[-XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump, -Xms512m, -Xmx1024m, -Duser.language=en, -jar, C:/Users/Edwin/Documents/Games/Minecraft/jars/NewLaunch.jar]

Using onesix launcher.

Main Class:
net.minecraft.launchwrapper.Launch

Native path:
C:/Users/Edwin/Documents/Games/Minecraft/instances/1.7.2/natives

Traits:
[]

Libraries:
C:/Users/Edwin/Documents/Games/Minecraft/libraries/net/minecraftforge/forge/1.7.2-10.12.2.1161-mc172/forge-1.7.2-10.12.2.1161-mc172-universal.jar
C:/Users/Edwin/Documents/Games/Minecraft/libraries/net/minecraft/launchwrapper/1.9/launchwrapper-1.9.jar
C:/Users/Edwin/Documents/Games/Minecraft/libraries/org/ow2/asm/asm-all/4.1/asm-all-4.1.jar
C:/Users/Edwin/Documents/Games/Minecraft/libraries/org/scala-lang/scala-library/2.10.2/scala-library-2.10.2.jar
C:/Users/Edwin/Documents/Games/Minecraft/libraries/org/scala-lang/scala-compiler/2.10.2/scala-compiler-2.10.2.jar
C:/Users/Edwin/Documents/Games/Minecraft/libraries/lzma/lzma/0.0.1/lzma-0.0.1.jar
C:/Users/Edwin/Documents/Games/Minecraft/libraries/java3d/vecmath/1.3.1/vecmath-1.3.1.jar
C:/Users/Edwin/Documents/Games/Minecraft/libraries/net/sf/trove4j/trove4j/3.0.3/trove4j-3.0.3.jar
C:/Users/Edwin/Documents/Games/Minecraft/libraries/com/ibm/icu/icu4j-core-mojang/51.2/icu4j-core-mojang-51.2.jar
C:/Users/Edwin/Documents/Games/Minecraft/libraries/net/sf/jopt-simple/jopt-simple/4.5/jopt-simple-4.5.jar
C:/Users/Edwin/Documents/Games/Minecraft/libraries/com/paulscode/codecjorbis/20101023/codecjorbis-20101023.jar
C:/Users/Edwin/Documents/Games/Minecraft/libraries/com/paulscode/codecwav/20101023/codecwav-20101023.jar
C:/Users/Edwin/Documents/Games/Minecraft/libraries/com/paulscode/libraryjavasound/20101123/libraryjavasound-20101123.jar
C:/Users/Edwin/Documents/Games/Minecraft/libraries/com/paulscode/librarylwjglopenal/20100824/librarylwjglopenal-20100824.jar
C:/Users/Edwin/Documents/Games/Minecraft/libraries/com/paulscode/soundsystem/20120107/soundsystem-20120107.jar
C:/Users/Edwin/Documents/Games/Minecraft/libraries/io/netty/netty-all/4.0.10.Final/netty-all-4.0.10.Final.jar
C:/Users/Edwin/Documents/Games/Minecraft/libraries/com/google/guava/guava/15.0/guava-15.0.jar
C:/Users/Edwin/Documents/Games/Minecraft/libraries/org/apache/commons/commons-lang3/3.1/commons-lang3-3.1.jar
C:/Users/Edwin/Documents/Games/Minecraft/libraries/commons-io/commons-io/2.4/commons-io-2.4.jar
C:/Users/Edwin/Documents/Games/Minecraft/libraries/com/google/code/gson/gson/2.2.4/gson-2.2.4.jar
C:/Users/Edwin/Documents/Games/Minecraft/libraries/com/mojang/authlib/1.3/authlib-1.3.jar
C:/Users/Edwin/Documents/Games/Minecraft/libraries/org/apache/logging/log4j/log4j-api/2.0-beta9/log4j-api-2.0-beta9.jar
C:/Users/Edwin/Documents/Games/Minecraft/libraries/org/apache/logging/log4j/log4j-core/2.0-beta9/log4j-core-2.0-beta9.jar
C:/Users/Edwin/Documents/Games/Minecraft/libraries/net/java/jinput/jinput/2.0.5/jinput-2.0.5.jar
C:/Users/Edwin/Documents/Games/Minecraft/libraries/net/java/jutils/jutils/1.0.0/jutils-1.0.0.jar
C:/Users/Edwin/Documents/Games/Minecraft/libraries/org/lwjgl/lwjgl/lwjgl/2.9.1/lwjgl-2.9.1.jar
C:/Users/Edwin/Documents/Games/Minecraft/libraries/org/lwjgl/lwjgl/lwjgl_util/2.9.1/lwjgl_util-2.9.1.jar
C:/Users/Edwin/Documents/Games/Minecraft/versions/1.7.2/1.7.2.jar

Params:
[--username, <PROFILE NAME>, --version, 1.7.2, --gameDir, C:/Users/Edwin/Documents/Games/Minecraft/instances/1.7.2/minecraft, --assetsDir, C:/Users/Edwin/Documents/Games/Minecraft/assets/virtual/legacy, --uuid, <PROFILE ID>, --accessToken, <ACCESS TOKEN>, --tweakClass, cpw.mods.fml.common.launcher.FMLTweaker]

Window size: 854 x 480

Preparing native libraries...
Extracting jinput-platform-2.0.5-natives-windows.jar
Extracting lwjgl-platform-2.9.1-natives-windows.jar

[16:44:30] [main/INFO] [LaunchWrapper]: Loading tweak class name cpw.mods.fml.common.launcher.FMLTweaker
[16:44:31] [main/INFO] [LaunchWrapper]: Using primary tweak class name cpw.mods.fml.common.launcher.FMLTweaker
[16:44:31] [main/INFO] [LaunchWrapper]: Calling tweak class cpw.mods.fml.common.launcher.FMLTweaker
[16:44:31] [main/INFO] [FML]: Forge Mod Loader version 7.2.217.1161 for Minecraft 1.7.2 loading
[16:44:31] [main/INFO] [FML]: Java is Java HotSpot(TM) 64-Bit Server VM, version 1.8.0_40, running on Windows 7:amd64:6.1, installed at C:\Program Files\Java\jre1.8.0_40
[16:44:31] [main/INFO] [LaunchWrapper]: Loading tweak class name cpw.mods.fml.common.launcher.FMLInjectionAndSortingTweaker
[16:44:31] [main/INFO] [LaunchWrapper]: Loading tweak class name cpw.mods.fml.common.launcher.FMLDeobfTweaker
[16:44:31] [main/INFO] [LaunchWrapper]: Calling tweak class cpw.mods.fml.common.launcher.FMLInjectionAndSortingTweaker
[16:44:31] [main/ERROR] [LaunchWrapper]: Unable to launch
java.util.ConcurrentModificationException
at java.util.ArrayList$Itr.checkForComodification(Unknown Source) ~[?:1.8.0_40]
at java.util.ArrayList$Itr.remove(Unknown Source) ~[?:1.8.0_40]
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_40]
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) ~[?:1.8.0_40]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) ~[?:1.8.0_40]
at java.lang.reflect.Method.invoke(Unknown Source) ~[?:1.8.0_40]
at org.multimc.onesix.OneSixLauncher.launchWithMainClass(OneSixLauncher.java:286) [NewLaunch.jar:?]
at org.multimc.onesix.OneSixLauncher.launch(OneSixLauncher.java:376) [NewLaunch.jar:?]
at org.multimc.EntryPoint.listen(EntryPoint.java:165) [NewLaunch.jar:?]
at org.multimc.EntryPoint.main(EntryPoint.java:54) [NewLaunch.jar:?]
Minecraft exited with exitcode 0.

Nevermind I found the issue. I something with Java was incompatible with forge for 1.7.2 or maybe just the launcher.