I've got a simple but tough problem : Texmaker does not recognize \lewis
!
When I compile, it says : Undefined control sequence. \lewis...
I use chemfig of course. I've restarted my computer, a PC with Windows 10. I've tried \Lewis
.
Can you help ?
\documentclass[a4paper, 10pt]{article}
\usepackage[T1]{fontenc}
\usepackage[utf8]{inputenc}
\usepackage[french]{babel}
\usepackage{graphicx}
\usepackage{array}
\usepackage{chemfig}
\usepackage[version=4]{mhchem}
\begin{document}
\lewis{2.,0}
\end{document}
\chemfig{... \lewis ...}
? Or just within the plain text?