"Cannot create a file when that file already exists" on game startup

ERROR

Unable to create directory. hit4.ogg
Name: hit4.ogg
URL: http://resources.download.minecraft.net/73/73909900231d6f994e92cea983eb34d20cdd6461
Error details: Cannot create a file when that file already exists
Filename on disk: b3ba-77a5-7202-537c
Path: C:\Users\twigs909\AppData\Local\Temp\b3ba-77a5-7202-537c
Exists: file