HELP! HEXXIT CRASH ERROR!

[Lukiff]

Hey guys, for ages I have been wanting to play modpacks on the Technic Launcher. But they always have some sort of crash error when starting. I've finally decided to report these and hopefully get some help on why I can't play any modpacks (Tekkit Classic, Attack of the B-Team etc.) and how I can. Here is an error from Hexxit, it pops up with the Mojang logo, then after 5 seconds, I get this report:

    Minecraft has crashed!      
      ----------------------      

Minecraft has stopped running because it encountered a problem; Failed to start game

A full error report has been saved to \\Server-FS-11\AppData-Students$\lcaruso\.technic\modpacks\hexxit\crash-reports\crash-2015-04-07_12.03.05-client.txt - Please include a copy of that file (Not this screen!) if you report this crash to anyone; without it, they will not be able to help fix the crash

 

--- BEGIN ERROR REPORT a9abc357 --------
Full report at:
\\Server-FS-11\AppData-Students$\lcaruso\.technic\modpacks\hexxit\crash-reports\crash-2015-04-07_12.03.05-client.txt
Please show that file to Mojang, NOT just this screen!

Generated 7/04/15 12:03 PM

-- System Details --
Details:
    Minecraft Version: 1.5.2
    Operating System: Windows 7 (x86) version 6.1
    Java Version: 1.8.0_25, Oracle Corporation
    Java VM Version: Java HotSpot(TM) Client VM (mixed mode), Oracle Corporation
    Memory: 30319920 bytes (28 MB) / 79745024 bytes (76 MB) up to 1037959168 bytes (989 MB)
    JVM Flags: 3 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xmx1024m -XX:MaxPermSize=128m
    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 v7.51 FML v5.2.23.737 Minecraft Forge 7.8.1.737 7 mods loaded, 0 mods active
    mcp{7.51} [Minecraft Coder Pack] (minecraft.jar) 
    FML{5.2.23.737} [Forge Mod Loader] (coremods) 
    Forge{7.8.1.737} [Minecraft Forge] (coremods) 
    CodeChickenCore{0.8.7.3} [CodeChicken Core] (coremods) 
    CoFHFramework{1.5.2.5} [CoFH Framework] (coremods) 
    ImmibisMicroblocks{55.0.7} [Immibis's Microblocks] (coremods) 
    NotEnoughItems{1.5.2.28} [Not Enough Items] (coremods) 
    LWJGL: 2.9.0
    OpenGL: Intel(R) HD Graphics 4400 GL version 4.3.0 - Build 10.18.10.3960, Intel
    Is Modded: Definitely; Client brand changed to 'fml,forge'
    Type: Client (map_client.txt)
    Texture Pack: Default
    Profiler Position: N/A (disabled)
    Vec3 Pool Size: ~~ERROR~~ NullPointerException: null

java.lang.IllegalArgumentException: URI has an authority component
    at java.io.File.<init>(Unknown Source)
    at cpw.mods.fml.common.ModClassLoader.getParentSources(ModClassLoader.java:66)
    at cpw.mods.fml.common.discovery.ModDiscoverer.findClasspathMods(ModDiscoverer.java:45)
    at cpw.mods.fml.common.Loader.identifyMods(Loader.java:342)
    at cpw.mods.fml.common.Loader.loadMods(Loader.java:480)
    at cpw.mods.fml.client.FMLClientHandler.beginMinecraftLoading(FMLClientHandler.java:163)
    at net.minecraft.client.Minecraft.func_71384_a(Minecraft.java:411)
    at net.minecraft.client.MinecraftAppletImpl.func_71384_a(SourceFile:56)
    at net.minecraft.client.Minecraft.run(Minecraft.java:733)
    at java.lang.Thread.run(Unknown Source)
--- END ERROR REPORT 7186a34c ----------

 

Any help will be greatly appreciated! Thanks guys!