Crash

java.lang.IllegalArgumentException: URI is not hierarchical
    at java.io.File.<init>(Unknown Source)
    at ModLoader.init(ModLoader.java:929)
    at ModLoader.addAllRenderers(ModLoader.java:185)
    at avy.<init>(RenderManager.java:87)
    at avy.<clinit>(RenderManager.java:14)
    at net.minecraft.client.Minecraft.a(SourceFile:260)
    at net.minecraft.client.Minecraft.run(SourceFile:516)
    at java.lang.Thread.run(Unknown Source)