pierlau54

Everytime I try to launch my rocksmith 2014 i get tis message... ok, I am new and have had the game since the december 24th, i managed to download some cdlcs and since then i get this message, Even the cherub rock and the game I purchased are confirmed by steam... Can I re- download the game to solve this missing file issue? is ther a patch? I downloaded the manager and the kit but they are still a little confusing to use... Anybody out there have a solution? thanks