I have rocksmith for the PS3, and I've been trying to extract tab from the PC version of a file I found here. I open the program and get an error, then click continue to ignore it, and the program opens but won't extract anything.     Every time I open rocksmithtotab I get this error:   See the end of this message for details on invoking just-in-time (JIT) debugging instead of this dialog box. ************** Exception Text **************System.NullReferenceException: Object reference not set to