I am able to get ModLoader and ModLoaderMP to install without issue, but when I try and get forge to install I get this error:
java.lang.NoSuchMethodError: px.updateWorldLightLevels()V
at kv.updateWorldLightLevels(GameSettings.java:162)
at kv.a(GameSettings.java:861)
at ModLoader.init(ModLoader.java:825)
at ModLoader.AddAllRenderers(ModLoader.java:183)
at th.<init>(th.java:60)
at th.<clinit>(th.java:9)
at net.minecraft.client.Minecraft.a(SourceFile:318)
at q.a(q.java:28)
at net.minecraft.client.Minecraft.run(SourceFile:716)
at java.lang.Thread.run(Unknown Source)
--- END ERROR REPORT 866f2018 ----------