I seem to be having an issue with Minecraft Forge for 1.6.4 where I don't get any game sounds. I've tried using both the latest and the recommended releases, but I am having the problem with both versions. In my previous workspace I did not have this problem (also 1.6.4), but I decided to upgrade my workspace to use gradle. Note that I have also tried using the non-gradle version of forge and still have the issue. I have also attempted running Minecraft in a clean workspace with no mods, but the problem still persists.
There is a stack trace in the console:
2013-11-27 14:49:10 [iNFO] [sTDERR] javax.imageio.IIOException: Can't read input file!
2013-11-27 14:49:10 [iNFO] [sTDERR] at javax.imageio.ImageIO.read(Unknown Source)
2013-11-27 14:49:10 [iNFO] [sTDERR] at net.minecraft.client.Minecraft.readImage(Minecraft.java:558)
2013-11-27 14:49:10 [iNFO] [sTDERR] at net.minecraft.client.Minecraft.startGame(Minecraft.java:419)
2013-11-27 14:49:10 [iNFO] [sTDERR] at net.minecraft.client.Minecraft.run(Minecraft.java:808)
2013-11-27 14:49:10 [iNFO] [sTDERR] at net.minecraft.client.main.Main.main(Main.java:93)
2013-11-27 14:49:10 [iNFO] [sTDERR] at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
2013-11-27 14:49:10 [iNFO] [sTDERR] at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
2013-11-27 14:49:10 [iNFO] [sTDERR] at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
2013-11-27 14:49:10 [iNFO] [sTDERR] at java.lang.reflect.Method.invoke(Unknown Source)
2013-11-27 14:49:10 [iNFO] [sTDERR] at net.minecraft.launchwrapper.Launch.launch(Launch.java:131)
2013-11-27 14:49:10 [iNFO] [sTDERR] at net.minecraft.launchwrapper.Launch.main(Launch.java:27)
I'm not sure what this stack trace relates to (it is in a workspace with no mods, so it's definitely related to Minecraft/forge. I did a little bit of searching, but can't seem to find any solution, so if anyone could offer any assistance I would be most appreciative