Cannot use the empheq package

[me7pako]

Description

Minimal Working Example

\documentclass{kaobook}
\usepackage[english]{babel}
\usepackage{blindtext}
\usepackage{kaobiblio}
\usepackage{kaotheorems}
\usepackage{kaorefs}
\usepackage{empheq}
\begin{document}

\title{Bug Report}
\author{Author}
\date{\today}

\frontmatter
\maketitle
\mainmatter
\setchapterstyle{kao}

\chapter{First Chapter}
\blindtext

\end{document}

Expected behavior:

Actual behavior:
<a bug report : ! LaTeX Error: Command \refeq already defined.
Or name \end... illegal, see p.192 of the manual.

See the LaTeX manual or LaTeX Companion for explanation.
Type H for immediate help.
...

l.166 ...hyperref[eq:#1]\eqname\xspace\ref{eq:#1}}

? >

** Additional Information
I believe the issue is with the package kaorefs since in the errors box I get a link to kaorefs.sty

[Federico Marotta]

Hmm, I'd try to load kaorefs after empheq, and relax \refeq in between. In other words, I'd try to load the packages like so:

\usepackage{empheq}
\let\refeq\relax
\usepackage{kaorefs}

but let me know if it doesn't work.

[me7pako]

Hmm, I'd try to load kaorefs after empheq, and relax \refeq in between. In other words, I'd try to load the packages like so:

\usepackage{empheq}
\let\refeq\relax
\usepackage{kaorefs}

but let me know if it doesn't work.

Thank you, it worked. Although for a totally different matter which is the use of mathtools. I had to cut it and paste it after kaorefs and relax refeq.

Thanks a lot. I owe you my thesis :D