I use scrbook and want to number the sections consecutively, so i don't want to make them dependent on the chapter. Instead of 1.1, 1.2, 1.3, 2.1, 2.2, ... it should be 1, 2, 3, 4, .... .
Thanks for your help, I don't know what to do
The solution is to use \counterwithout as shown here. However, since the April 2018 release the functionality of the chngcntr package has been integrated directly into the LaTeX kernel, so you can just use
\documentclass{scrbook}
% \usepackage{chngcntr} % not necessary in recent distributions
\counterwithout{section}{chapter}
\begin{document}
\tableofcontents
\chapter{First}
\section{Foo}
\section{Bar}
\chapter{Second}
\section{Baz}
\section{Bla}
\end{document}