Julio Rojas wrote: > Sorry Uwe, did as you suggested (replacing beamer.layout), but the same > error is presented (beamer.cls.cls).
Where does this layout file come from? It probably contains this line # \DeclareLaTeXClass[beamer.cls,pgf.sty,xcolor.sty]{Beamer Presentation Class} which should be replaced by the following line: # \DeclareLaTeXClass[beamer,pgf.sty,xcolor.sty]{Beamer Presentation Class} (i.e. "beamer.cls" -> "beamer") Jürgen