trying to open autocad LT (for mac version 2017) from an existing file and im getting "Folders on your computer that autocad needs access to are not available. autocad cannot run until folder permission issues are resolved." Does anyone know why? I was working from this drawing very recently without any problems. the only thing that has changed is that i updated my operating system today to  mojave 10.14.2  . Is there a conflict between this OS and autocad LT 2017 ?