Math & Science ⇒ LaTeX Error about package not found

[ptrcao]

Code: Select all

\documentclass[a4paper,12pt]{article}
\usepackage[version=3]{mhchem}
\usepackage{a4wide}
\usepackage{tikz}
\usepackage{pgf}
\usepackage{mychemistry}

\begin{document}
\begin{rxn}
\arrow [,-+>]{ }{ }
\end{rxn}
\end{document}

! LaTeX Error: File `mychemistry.sty' not found.

I put mychemistry.sty in C:\Program Files\MiKTeX 2.8\tex\latex\mychemistry, in a location analogous to where I put all my other packages.

TexWorks never prompted to install the package - it usually gives this option when a package is detected as missing.

What is wrong?

[Stefan Kottwitz]

Hi,

run texhash or mktexlsr or refresh the MiKTeX package database via the GUI: open MiKTeX Options resp. Settings in the start menu, click the button Refresh FNDB.

Stefan