LaTeX.org

Since updating ubuntu to 14.10 (and 15.04 recently) i cannot succeed in compiling the following source:

%\documentclass[a4paper]{article}%
%\usepackage{beamerarticle}
\documentclass{beamer}%
\usepackage[german]{babel}
\usepackage{pst-pdf}
\usepackage{pst-node}
%
\begin{document}
%
\begin{frame ...