Lualatex and unicode-math
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Anonymous 892 
In this MWE

```tex
\documentclass{scrartcl}  

\usepackage[spanish, activeacute]{babel}   
\usepackage{unicode-math}  
\usepackage{hyperref}  

\begin{document}  
\section{A section}  
\begin{equation}  
  j =\sqrt{-1}  
\end{equation}  
\end{document}
```

there is a fatal error. However, if I comment `activeacute` or `\usepackage{hyperref}` or `\usepackage{unicode-math]` or I change the kind of document to article, for example, the error disappears. Any help? Thanks
Top Answer
Skillmon 
I did not test thoroughly whether all the features work, but it seems like loading `babel` after `unicode-math` fixes the issue at hand.

```tex
\documentclass{scrartcl}

\usepackage{unicode-math}
\usepackage[spanish, activeacute]{babel}
\usepackage{hyperref}

\begin{document}
\section{A section}
'a
\begin{equation}
  j =\sqrt{-1}
\end{equation}
\end{document}
```
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