Hier ein Minimalbeispiel:
\documentclass[listof=toc, a4paper, 12pt, headsepline,twoside, openright, cleardoublepage=
empty, abstracton]{scrreprt}
\usepackage[a4paper, lmargin={3.3cm}, rmargin={2.5cm}, tmargin={2.5cm}, bmargin={2.5cm}]{geometry}
\usepackage[utf8]{inputenc}
\usepackage[T1]{fontenc}
\usepackage[english,ngerman]{babel}
\usepackage{color}
\usepackage{needspace}%
\usepackage{graphicx} %[draft]
\usepackage{caption}
\usepackage{subcaption}
\usepackage{pgf}
\usepackage{wrapfig}%Textumflossen Abbildungen
\usepackage{float} % lädt das Paket zum erzwingen der Grafikposition
\usepackage{palatino}
\usepackage[font=small,labelfont=bf,justification=justified]{caption}
\pagestyle{headings}
\linespread{1.25}
\usepackage{scrpage2} %Zweiseitig
\pagestyle{scrheadings}
\clearscrheadings
\chead{\leftmark\ - \rightmark}%linksund rechts num und heading
\automark[section]{chapter}
\usepackage{amsmath}
\usepackage{amsfonts}
\usepackage{makeidx}
\makeatletter
\setkomafont{chapter}{\let\@hangfrom\chapterhang\let\raggedsection\raggedleft\huge}
\makeatother
\newbox\chapternumberbox
\newcommand{\chapterhang}[2]{%
\savebox\chapternumberbox{\fontsize{100}{100}\normalfont\sffamily\bfseries
\thechapter}%
\parbox[tt]{\dimexpr\linewidth-\wd\chapternumberbox-1em}{%
\raggedleft
\makebox[1em][l]{\normalfont\normalsize\slshape\chapapp}\\
#2%
}\quad
\raisebox{-1.75\baselineskip}{\usebox\chapternumberbox}\par
}
\usepackage{mwe}
\renewcommand*{\chapterheadstartvskip}{\vspace*{-1cm}}
%----------------------------------------------------------------------
%Verzeichniss Baum
\usepackage{dirtree}
\usepackage{tikz}
\usetikzlibrary{trees}
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
\usepackage{microtype}% verbesserter Randausgleich
\newcommand{\folder}{%
\begin{tikzpicture}[inner sep=0pt]
\node (base)[rectangle,minimum width=.9em,minimum height=.9em,draw,rounded
corners=1pt,fill=yellow!50] {};
\node (paper)[rectangle,minimum width=.8em,minimum height=.8em,draw,rounded
corners=1pt,fill=white] {};
\node (slant) [rectangle,minimum width=.9em,minimum height=.9em,draw,rounded
corners=1pt,fill=yellow!50,xslant=-.5pt,anchor=south west] at (base.south west)
{};
\end{tikzpicture}
}
\newcommand{\longcom}[2][5cm]{\ldots{}\begin{minipage}[t]{#1}#2\end{minipage}}
\begin{document}
\chapter{Hauptteil}
\subsection{DirtreeTest}
\dirtree{%
.1 CD-ROM.
.2 \folder{}Abbildungen.
.4 \folder{}Orginal\_Moxa\_Kern\_Bilder\DTcomment{Original Fotos}.
.2 \folder{}Literatur\DTcomment{Gesammelte Literatur}.
.3 \folder{}messung\_FBGS\DTcomment{Skript zum Auswerten der FBGS}.
.3 \folder{}messung\_pegel\DTcomment{Skript zum Auswerten der Pegeldaten}.
.2 Read\_me.txt.
}
\end{document}