#### image – PNG的Includegraphics问题

\begin{figure}
\includegraphics[width=1\textwidth]{Blockdiagram}
\caption{Diagram}
\label{figure:BlockDiagram}
\end{figure}


I could not locate the file with any of these extensions: .eps, .ps....


\usepackage{graphicx}
\usepackage{epsfig}