obsidiandestiny

I keep getting "ERROR(57): The process cannot access the file 'C:\Program Files (x86)\Steam\steamapps\common\Skyrim\Data\meshes\animationsetdatasinglefile.txt' because it is being used by another process." every time I try to update fnis. I have narrowed it down to having the Gender specific animation and skeleton arm fix patches toggled on. and I can't take them off because I am using custom skeleton and gender specific animations mods but don't know how to fix this. if anyone can help that would be greatly appreciated.