Caused by: java.lang.RuntimeException: java.io.FileNotFoundException: C:UsersRyanAppDataRoaming.technicmodpackstekkitmainconfigWirelessRedstone.cfg (The requested operation cannot be performed on a file with a user-mapped section open)
I think someone mensioned to add the tekkit folder to your anti-virus as an exception...
The above line looks to me as if something has opened the file while tekkit tried to access it...
might be the problem...
