Tekkit Classic keeps crashing

[Whooeoeo]

Every time i launch  Tekkit classic it crashes after the mojang screen

this is the crash report 

Minecraft: Minecraft 1.2.5
OS: Windows 7 (x86) version 6.1
Java: 1.8.0_91, Oracle Corporation
VM: Java HotSpot(TM) Client VM (mixed mode), Oracle Corporation
LWJGL: 2.9.0
OpenGL: Intel(R) HD Graphics 4600 version 4.2.0 - Build 10.18.10.3621, Intel

java.lang.IllegalArgumentException: URI has an authority component
    at java.io.File.<init>(Unknown Source)
    at cpw.mods.fml.common.ModClassLoader.getParentSources(ModClassLoader.java:67)
    at cpw.mods.fml.common.Loader.load(Loader.java:384)
    at cpw.mods.fml.common.Loader.loadMods(Loader.java:616)
    at cpw.mods.fml.client.FMLClientHandler.onPreLoad(FMLClientHandler.java:200)
    at net.minecraft.client.Minecraft.a(Minecraft.java:386)
    at net.minecraft.client.Minecraft.run(Minecraft.java:738)
    at java.lang.Thread.run(Unknown Source)

 

does someone know how to fix it?