BibTeX, biblatex and biber ⇒ Entries from JabRef do not show up in Lyx bibliography

[Matt5555]

There are no error messages when viewing the pdf. Adding references from the JabRef-bib files works. The problem is, those references do not have the selected citation style (author,year) but are displayed as the bibtexkey. Secondly, there is no bibliography in the pdf. Does anyone know a solution?

Here is the preamble:

Code: Select all

\usepackage{calc}
\usepackage{threeparttable}
\usepackage{csquotes}
\usepackage{chngcntr}
\usepackage{mdframed}
\usepackage[per=slash,decimalsymbol=comma,loctolang={DE:ngerman,UK:english}]{siunitx}
\setkomafont{sectioning}{\rmfamily\bfseries\boldmath} % serifen für alle kapitel, abschnitte, etc. 
\renewcommand*{\size@chapter}{\normalsize\MakeUppercase} % normale schrifrgröße, großbuchstaben
\renewcommand*{\size@section}{\normalsize}
\renewcommand*{\size@subsection}{\normalsize}

\let\OriginalSubsubsection\subsubsection%
\renewcommand{\subsubsection}[1]{\OriginalSubsubsection{\textmd{#1}}}
\addto\captionsngerman{\renewcommand\figurename{Abb.}}
\addto\captionsngerman{\renewcommand\tablename{Tab.}}

\renewcommand*{\thefigure}{\arabic{figure}} %fortlaufende nummerierung aller abbildungen
\renewcommand*{\thetable}{\arabic{table}} % tabellen
\hyphenation{Par-äs-the-sien Ätio-patho-genese symp-to-ma-tische Headache} % explizite trennung
\usepackage{ragged2e}
\renewcommand\raggedsection{\RaggedRight}
\usepackage[natbib=true,style=authoryear,doi=false,url=false,maxnames=2,maxbibnames=10,dashed=false,firstinits=true]{biblatex} 
\addbibresource{E:/drarbeit/einleitungjabref.bib} 
\AtEveryBibitem{\clearfield{note}} 
\AtEveryBibitem{\clearfield{language}} 
\DefineBibliographyStrings{ngerman}{andothers={et\ al\adddot}}
\DefineBibliographyStrings{ngerman}{bibliography={Literaturverzeichnis}}

\DeclareFieldFormat[article]{title}{#1\isdot} 
\DeclareFieldFormat[inbook]{title}{#1\isdot} 
\DeclareFieldFormat[article]{pages}{#1} 
\DeclareNameAlias{sortname}{last-first}

\DeclareFieldFormat{formaturl}{\newline #1} 
\newbibmacro*{url+urldate}{
\printtext[formaturl]{\printfield{url}}\iffieldundef{urlyear}{}{\setunit*{\addspace}{\printurldate}}}

\renewbibmacro{in:}{}
\counterwithout{figure}{chapter}
\counterwithout{table}{chapter}
\setlength\parindent{0pt}
\setlength\bibitemsep{10pt} 
\setlength{\fboxsep}{1mm} 
\setlength{\tabcolsep}{0mm}
\global \mdfdefinestyle{schwarzelinie}{%
linecolor=black , linewidth=1pt, align=center, style=2
}
%\renewcommand*{\chapterheadstartvskip}{\vspace*{-\topskip}}
\usepackage[bottom=9em,textwidth=448.13095pt]{geometry}
%\usepackage[hscale=0.69,vscale=0.79,heightrounded,includehead]{geometry}