On Tue, Sep 2, 2014 at 11:30 AM, Mittelbach, Frank <[log in to unmask]> wrote: >> Even an error message that explains the situation would be preferable >> to the standard "File `l3prop.sty' not found" error. > > ok that's probably better than a warning. Error and explaining what to > change, followed by loading expl3 so that the document can continue That seems sensible. Users have probably (and justifiably) become desensitized to console-warnings. -- www.mhelvens.net