Anbei sende ich euch meinen code. Bei mir läuft er, im Onlineeditor erscheint der Fehler: Package biblatex Error: Command '\cite' undefined. Ich hoffe ihr könnt mir trotzdem helfen. Vielen Dank schon einmal im Voraus.
\begin{filecontents*}{Manuskript.bib} @commentary{CalliessR, Address = {München}, Author = {Calliess, Christian and Ruffert, Matthias}, Booktitle = {EUV/AEUV Kommentar}, Date-Added = {2015-11-16 16:40:08 +0000}, Date-Modified = {2016-09-01 13:14:17 +0000}, Edition = {5}, Editor = {Calliess, Christian and Ruffert, Matthias}, Publisher = {C.H. Beck}, Title = {EUV/AEUV Kommentar}, Year = {2016}} @incollection{Kokott, Address = {Kehl}, Author = {Kokott, Juliane}, Booktitle = {Völkerrecht als Wertordnung -- Festschrift für Christian Tomuschat}, Date-Added = {2016-11-24 11:40:13 +0000}, Date-Modified = {2016-11-24 11:51:25 +0000}, Editor = {Dupuy, Pierre-Marie and Fassbender, Bardo and Shaw, Malcom and Sommermann, Karl-Peter}, Pages = {207-226}, Publisher = {N.P. Engel Verlag}, Title = {Die Freizügigkeit der Unionsbürger als neue Grundfreiheit}, Year = {2006}} \end{filecontents*} \begin{filecontents}{Test.bbx} \ProvidesFile{Test.bbx}[2016/12/14 v0.1f biblatex bibliography style] \RequireBibliographyStyle{authoryear} \end{filecontents} \begin{filecontents}{Test.cbx} \ProvidesFile{Test.cbx}[2016/12/14 v0.1f biblatex citation style] \RequireCitationStyle{authortitle-dw}% %Fußnotenformat für Kommentare: \DeclareNameFormat{family}{% \usebibmacro{name:family} {\namepartfamily} {\namepartgiven} {\namepartprefix} {\namepartsuffix}% \usebibmacro{name:andothers}} \DeclareBibliographyDriver{cite:commentary}{% \usebibmacro{in:}% \iffieldundef{shorthand}% {\printnames[family]{editor}}% {\ifbool{cbx:shorthandibid}% {\ifthenelse{\ifciteibid\AND\NOT\iffirstonpage}% {\usebibmacro{cite:ibid}}% {\usebibmacro{cite:shorthand}}}% {\usebibmacro{cite:shorthand}}}% \setunit{\addcomma\space}% \printfield{title}} % Kursive Schrift für Bearbeiter von Kommentaren \DeclareFieldFormat[commentary]{prenote}{\mkbibemph{#1}\addcomma}% % Shorthand ersetzt bei Kommentaren nicht den Autor, sondern % den Herausgeber \renewbibmacro*{cite:normal}{% \iffieldequalstr{entrytype}{commentary}{% <--- {\ifthenelse{\ifciteibid\AND\NOT\iffirstonpage} {\usebibmacro{cite:ibid}} {\usedriver{}{cite:commentary}}}}% {\iffieldundef{shorthand}% {\ifthenelse{\ifciteibid\AND\NOT\iffirstonpage} {\usebibmacro{cite:ibid}} {\ifthenelse{\ifciteidem\AND\NOT\boolean{cbx:noidem}% \AND\NOT\iffirstonpage}% {\usebibmacro{cite:idem}% \usebibmacro{cite:title}% \usebibmacro{cite:save}} {\ifnameundef{labelname} {} {\usebibmacro{cite:name}}% \usebibmacro{cite:title}}% \ifbool{cbx:omiteditor} {} {\ifnameundef{labelname} {\newunit \usebibmacro{cite:byeditor}} {}}% \usebibmacro{cite:save}}} {\ifbool{cbx:shorthandibid}% {\ifthenelse{\ifciteibid\AND\NOT\iffirstonpage}% {\usebibmacro{cite:ibid}} {\usebibmacro{cite:shorthand}}}% {\usebibmacro{cite:shorthand}}}% }% }% % Fußnotenformat für Festschriften: \DeclareBibliographyDriver{cite:incollection}{% \usebibmacro{in:}% {% \iffieldundef{shorttitle}% {\printfield{booktitle}}% {\printfield{shorttitle}}% }% \iffieldundef{postnote}% {\addcomma\space% \printfield{pages}}% {}% }% \end{filecontents} \documentclass[oneside]{scrbook} \usepackage[ngerman]{babel} \usepackage[utf8]{inputenc} \usepackage[T1]{fontenc} \usepackage{setspace} \usepackage{alnumsec} \surroundarabic[(][)]{}{.} \otherseparators{5} \usepackage{geometry} \geometry{a4paper,includehead, includefoot, left=20mm,right=20mm,top=20mm,bottom=10mm} \usepackage[babel, german=quotes]{csquotes} \usepackage[bibstyle=Test,citestyle=Test]{biblatex} \bibliography{Manuskript} \begin{document} 123\footcite[Vgl.][S. 2]{Kokott} 123\footcite[Brechmann][Art. 18 AEUV, Rn. 12]{CalliessR} \printbibliography \end{document}