I guess it's easier and safer to delete your [typed].skcraftalice[/typed] (in appdata/roaming folder) and let the launcher download the needed files again! An easy way to do that is open your minecraft, go to [typed]Texture Packs[/typed] and click [typed]Open Texture Packs Folder[/typed] so navigate backwards two or three folder and you will be in roaming folder!