I have an old minecraft modpack which I want to send to technic. After sent it to technic , I had this error: Error extracting a file for the modpack . The modpack is on 1.4.7. I don't know if on this version has something different. I've created all the 3 main folders (bin, mods, config ) and putted the forge with the name modpack .jar on bin. After sent it to a . zip file, I've sent it to dropbox . Please help me !