Windows .exe i can load regular minecraft but not FTB

[sgbadman]

THis is the error i get when i launch the unleashed pack and any other ftb packs
7 11:03:02 [OFF] [ForgeModLoadthier] Logging level for ForgeModLoader logging is set to ALL


2013-09-27 11:03:02 [INFO] [STDERR] java.lang.IllegalArgumentException: URI has an authority component
2013-09-27 11:03:02 [INFO] [STDERR] at java.io.File.<init>(Unknown Source)
2013-09-27 11:03:02 [INFO] [STDERR] at cpw.mods.fml.common.ModClassLoader.getParentSources(ModClassLoader.java:66)
2013-09-27 11:03:02 [INFO] [STDERR] at cpw.mods.fml.common.discovery.ModDiscoverer.findClasspathMods(ModDiscoverer.java:45)
2013-09-27 11:03:02 [INFO] [STDERR] at cpw.mods.fml.common.Loader.identifyMods(Loader.java:342)
2013-09-27 11:03:02 [INFO] [STDERR] at cpw.mods.fml.common.Loader.loadMods(Loader.java:480)
2013-09-27 11:03:02 [INFO] [STDERR] at cpw.mods.fml.client.FMLClientHandler.beginMinecraftLoading(FMLClientHandler.java:163)
2013-09-27 11:03:02 [INFO] [STDERR] at net.minecraft.client.Minecraft.func_71384_a(Minecraft.java:411)
2013-09-27 11:03:02 [INFO] [STDERR] at net.minecraft.client.MinecraftAppletImpl.func_71384_a(SourceFile:56)
2013-09-27 11:03:02 [INFO] [STDERR] at net.minecraft.client.Minecraft.run(Minecraft.java:733)
2013-09-27 11:03:02 [INFO] [STDERR] at java.lang.Thread.run(Unknown Source)

 

[Ashzification]

Try this please:

Please read below. Please be sure to read all of the info available in the 2 articles.

Spoiler

Please follow these steps exactly: http://desk.feed-the-beast.com/index.php?/Knowledgebase/Article/View/9/0/basic-troubleshooting
This is to rule out any issues with your setup. Please also read the extra info at the bottom of the guide, and apply all applicable suggestions.

Please post your complete client-side (launcher) console log in debug-mode to pastebin.com and link your paste URL here.
To find your logs and prevent them from expiring: http://desk.feed-the-beast.com/inde...29/1/what-log-do-you-need-where-can-i-find-it