Displaying Bibliography Photo in IEEE Journal

You have two \begin{IEEEbiography} lines:

\begin{IEEEbiography[{\includegraphics[width=1in,height=1.25in,clip,keepaspectratio]{mshell}}]{Michael Shell}

\begin{IEEEbiography}{Michael Shell}

The IEEEbiography environment cannot be nested. Remove the second line, and everything compiles corrected.

\documentclass[journal]{IEEEtran}

\usepackage{graphicx}

\begin{document}

\begin{IEEEbiography}
    [{\includegraphics[width=1in,height=1.25in,clip,keepaspectratio]{mshell}}]{Michael Shell}
Biography text here.
\end{IEEEbiography}

...

\end{document}