Biber/BibLaTeX printbibliography causes “undefined control sequence” in the proceeding line











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I'm using biblatex with biber as the backend to write my document. Without printbibliography, all the citations work perfectly well, and appear in the document, so I assume that my bibliography.bib file is fine. The problem comes, however, when I include the line printbibliography at the end of my document (just before end{document}): suddenly every time I try to compile I get "undefined control sequence" referencing whatever line is after printbibliography.



Following suggestions elsewhere on the internet, I combed my document for "smart" quotation marks, and other weird characters, but there aren't any. My citations are downloaded from ADSABS, with the occasional @ONLINE resource, too. As I said, though, all the references work fine, it's just the printbibliography command that bails.



To illustrate (I'm not going to paste the entire document here unless someone thinks it will be helpful):



usepackage[style=authoryear-icomp,sorting=anyt]{biblatex}
addbibresource{bibliography.bib}

...

printbibliography









share|improve this question




















  • 2




    Welcome to TeX.SX! Please make your code compilable (if possible), or at least complete it with documentclass{...}, the required usepackage's, begin{document}, and end{document}. That may seem tedious to you, but think of the extra work it represents for TeX.SX users willing to give you a hand. Help them help you: remove that one hurdle between you and a solution to your problem.
    – Benedikt Bauer
    Mar 27 '14 at 13:44






  • 1




    i'd start by looking at the .bbl file to make sure nothing is wrong there -- all brace groups closed, that sort of thing, and also, whether the control sequence cited as "undefined" occurs in that file.
    – barbara beeton
    Mar 27 '14 at 14:01






  • 1




    Normally if biblatex fails at printbibliography it's not a biblatex problem but a problem with the .bib file. The problem does not become apparent in the citations though because not all entry fields are evaluated at cite-time. A MWE (and the error message: which command?) would greatly help us find the problem. In searching for it you might very well find out where the problem lies yourself. (Try for example only to cite one entry from the .bib file and print the bibliography, if that works that entry is not the culprit, try another one).
    – moewe
    Mar 27 '14 at 14:13










  • So @moewe I took your advice and made an MWE at gist.github.com/gfarrell/9892791. I've copied my document's original preamble exactly. I've included a citation for every bib entry. This MWE doesn't die on printbibliography, but it doesn't properly cite anything either. All the citations are just printed as the citation keys, and the references section isn't populated (see compiled PDF here: cl.ly/2f1e3T243o1n). I've tried multiple runs but no cigar. It seems I can't even create a proper MWE...
    – GTF
    Mar 31 '14 at 13:59










  • (OK, ignore the problem with the MWE, Biber was throwing a hissy fit - fixed using bit.ly/1gHp3Bm) I'll go through the citations to see what breaks.
    – GTF
    Mar 31 '14 at 14:10















up vote
8
down vote

favorite
1












I'm using biblatex with biber as the backend to write my document. Without printbibliography, all the citations work perfectly well, and appear in the document, so I assume that my bibliography.bib file is fine. The problem comes, however, when I include the line printbibliography at the end of my document (just before end{document}): suddenly every time I try to compile I get "undefined control sequence" referencing whatever line is after printbibliography.



Following suggestions elsewhere on the internet, I combed my document for "smart" quotation marks, and other weird characters, but there aren't any. My citations are downloaded from ADSABS, with the occasional @ONLINE resource, too. As I said, though, all the references work fine, it's just the printbibliography command that bails.



To illustrate (I'm not going to paste the entire document here unless someone thinks it will be helpful):



usepackage[style=authoryear-icomp,sorting=anyt]{biblatex}
addbibresource{bibliography.bib}

...

printbibliography









share|improve this question




















  • 2




    Welcome to TeX.SX! Please make your code compilable (if possible), or at least complete it with documentclass{...}, the required usepackage's, begin{document}, and end{document}. That may seem tedious to you, but think of the extra work it represents for TeX.SX users willing to give you a hand. Help them help you: remove that one hurdle between you and a solution to your problem.
    – Benedikt Bauer
    Mar 27 '14 at 13:44






  • 1




    i'd start by looking at the .bbl file to make sure nothing is wrong there -- all brace groups closed, that sort of thing, and also, whether the control sequence cited as "undefined" occurs in that file.
    – barbara beeton
    Mar 27 '14 at 14:01






  • 1




    Normally if biblatex fails at printbibliography it's not a biblatex problem but a problem with the .bib file. The problem does not become apparent in the citations though because not all entry fields are evaluated at cite-time. A MWE (and the error message: which command?) would greatly help us find the problem. In searching for it you might very well find out where the problem lies yourself. (Try for example only to cite one entry from the .bib file and print the bibliography, if that works that entry is not the culprit, try another one).
    – moewe
    Mar 27 '14 at 14:13










  • So @moewe I took your advice and made an MWE at gist.github.com/gfarrell/9892791. I've copied my document's original preamble exactly. I've included a citation for every bib entry. This MWE doesn't die on printbibliography, but it doesn't properly cite anything either. All the citations are just printed as the citation keys, and the references section isn't populated (see compiled PDF here: cl.ly/2f1e3T243o1n). I've tried multiple runs but no cigar. It seems I can't even create a proper MWE...
    – GTF
    Mar 31 '14 at 13:59










  • (OK, ignore the problem with the MWE, Biber was throwing a hissy fit - fixed using bit.ly/1gHp3Bm) I'll go through the citations to see what breaks.
    – GTF
    Mar 31 '14 at 14:10













up vote
8
down vote

favorite
1









up vote
8
down vote

favorite
1






1





I'm using biblatex with biber as the backend to write my document. Without printbibliography, all the citations work perfectly well, and appear in the document, so I assume that my bibliography.bib file is fine. The problem comes, however, when I include the line printbibliography at the end of my document (just before end{document}): suddenly every time I try to compile I get "undefined control sequence" referencing whatever line is after printbibliography.



Following suggestions elsewhere on the internet, I combed my document for "smart" quotation marks, and other weird characters, but there aren't any. My citations are downloaded from ADSABS, with the occasional @ONLINE resource, too. As I said, though, all the references work fine, it's just the printbibliography command that bails.



To illustrate (I'm not going to paste the entire document here unless someone thinks it will be helpful):



usepackage[style=authoryear-icomp,sorting=anyt]{biblatex}
addbibresource{bibliography.bib}

...

printbibliography









share|improve this question















I'm using biblatex with biber as the backend to write my document. Without printbibliography, all the citations work perfectly well, and appear in the document, so I assume that my bibliography.bib file is fine. The problem comes, however, when I include the line printbibliography at the end of my document (just before end{document}): suddenly every time I try to compile I get "undefined control sequence" referencing whatever line is after printbibliography.



Following suggestions elsewhere on the internet, I combed my document for "smart" quotation marks, and other weird characters, but there aren't any. My citations are downloaded from ADSABS, with the occasional @ONLINE resource, too. As I said, though, all the references work fine, it's just the printbibliography command that bails.



To illustrate (I'm not going to paste the entire document here unless someone thinks it will be helpful):



usepackage[style=authoryear-icomp,sorting=anyt]{biblatex}
addbibresource{bibliography.bib}

...

printbibliography






biblatex errors biber






share|improve this question















share|improve this question













share|improve this question




share|improve this question








edited Apr 26 '15 at 18:53









lockstep

189k52585719




189k52585719










asked Mar 27 '14 at 12:56









GTF

191117




191117








  • 2




    Welcome to TeX.SX! Please make your code compilable (if possible), or at least complete it with documentclass{...}, the required usepackage's, begin{document}, and end{document}. That may seem tedious to you, but think of the extra work it represents for TeX.SX users willing to give you a hand. Help them help you: remove that one hurdle between you and a solution to your problem.
    – Benedikt Bauer
    Mar 27 '14 at 13:44






  • 1




    i'd start by looking at the .bbl file to make sure nothing is wrong there -- all brace groups closed, that sort of thing, and also, whether the control sequence cited as "undefined" occurs in that file.
    – barbara beeton
    Mar 27 '14 at 14:01






  • 1




    Normally if biblatex fails at printbibliography it's not a biblatex problem but a problem with the .bib file. The problem does not become apparent in the citations though because not all entry fields are evaluated at cite-time. A MWE (and the error message: which command?) would greatly help us find the problem. In searching for it you might very well find out where the problem lies yourself. (Try for example only to cite one entry from the .bib file and print the bibliography, if that works that entry is not the culprit, try another one).
    – moewe
    Mar 27 '14 at 14:13










  • So @moewe I took your advice and made an MWE at gist.github.com/gfarrell/9892791. I've copied my document's original preamble exactly. I've included a citation for every bib entry. This MWE doesn't die on printbibliography, but it doesn't properly cite anything either. All the citations are just printed as the citation keys, and the references section isn't populated (see compiled PDF here: cl.ly/2f1e3T243o1n). I've tried multiple runs but no cigar. It seems I can't even create a proper MWE...
    – GTF
    Mar 31 '14 at 13:59










  • (OK, ignore the problem with the MWE, Biber was throwing a hissy fit - fixed using bit.ly/1gHp3Bm) I'll go through the citations to see what breaks.
    – GTF
    Mar 31 '14 at 14:10














  • 2




    Welcome to TeX.SX! Please make your code compilable (if possible), or at least complete it with documentclass{...}, the required usepackage's, begin{document}, and end{document}. That may seem tedious to you, but think of the extra work it represents for TeX.SX users willing to give you a hand. Help them help you: remove that one hurdle between you and a solution to your problem.
    – Benedikt Bauer
    Mar 27 '14 at 13:44






  • 1




    i'd start by looking at the .bbl file to make sure nothing is wrong there -- all brace groups closed, that sort of thing, and also, whether the control sequence cited as "undefined" occurs in that file.
    – barbara beeton
    Mar 27 '14 at 14:01






  • 1




    Normally if biblatex fails at printbibliography it's not a biblatex problem but a problem with the .bib file. The problem does not become apparent in the citations though because not all entry fields are evaluated at cite-time. A MWE (and the error message: which command?) would greatly help us find the problem. In searching for it you might very well find out where the problem lies yourself. (Try for example only to cite one entry from the .bib file and print the bibliography, if that works that entry is not the culprit, try another one).
    – moewe
    Mar 27 '14 at 14:13










  • So @moewe I took your advice and made an MWE at gist.github.com/gfarrell/9892791. I've copied my document's original preamble exactly. I've included a citation for every bib entry. This MWE doesn't die on printbibliography, but it doesn't properly cite anything either. All the citations are just printed as the citation keys, and the references section isn't populated (see compiled PDF here: cl.ly/2f1e3T243o1n). I've tried multiple runs but no cigar. It seems I can't even create a proper MWE...
    – GTF
    Mar 31 '14 at 13:59










  • (OK, ignore the problem with the MWE, Biber was throwing a hissy fit - fixed using bit.ly/1gHp3Bm) I'll go through the citations to see what breaks.
    – GTF
    Mar 31 '14 at 14:10








2




2




Welcome to TeX.SX! Please make your code compilable (if possible), or at least complete it with documentclass{...}, the required usepackage's, begin{document}, and end{document}. That may seem tedious to you, but think of the extra work it represents for TeX.SX users willing to give you a hand. Help them help you: remove that one hurdle between you and a solution to your problem.
– Benedikt Bauer
Mar 27 '14 at 13:44




Welcome to TeX.SX! Please make your code compilable (if possible), or at least complete it with documentclass{...}, the required usepackage's, begin{document}, and end{document}. That may seem tedious to you, but think of the extra work it represents for TeX.SX users willing to give you a hand. Help them help you: remove that one hurdle between you and a solution to your problem.
– Benedikt Bauer
Mar 27 '14 at 13:44




1




1




i'd start by looking at the .bbl file to make sure nothing is wrong there -- all brace groups closed, that sort of thing, and also, whether the control sequence cited as "undefined" occurs in that file.
– barbara beeton
Mar 27 '14 at 14:01




i'd start by looking at the .bbl file to make sure nothing is wrong there -- all brace groups closed, that sort of thing, and also, whether the control sequence cited as "undefined" occurs in that file.
– barbara beeton
Mar 27 '14 at 14:01




1




1




Normally if biblatex fails at printbibliography it's not a biblatex problem but a problem with the .bib file. The problem does not become apparent in the citations though because not all entry fields are evaluated at cite-time. A MWE (and the error message: which command?) would greatly help us find the problem. In searching for it you might very well find out where the problem lies yourself. (Try for example only to cite one entry from the .bib file and print the bibliography, if that works that entry is not the culprit, try another one).
– moewe
Mar 27 '14 at 14:13




Normally if biblatex fails at printbibliography it's not a biblatex problem but a problem with the .bib file. The problem does not become apparent in the citations though because not all entry fields are evaluated at cite-time. A MWE (and the error message: which command?) would greatly help us find the problem. In searching for it you might very well find out where the problem lies yourself. (Try for example only to cite one entry from the .bib file and print the bibliography, if that works that entry is not the culprit, try another one).
– moewe
Mar 27 '14 at 14:13












So @moewe I took your advice and made an MWE at gist.github.com/gfarrell/9892791. I've copied my document's original preamble exactly. I've included a citation for every bib entry. This MWE doesn't die on printbibliography, but it doesn't properly cite anything either. All the citations are just printed as the citation keys, and the references section isn't populated (see compiled PDF here: cl.ly/2f1e3T243o1n). I've tried multiple runs but no cigar. It seems I can't even create a proper MWE...
– GTF
Mar 31 '14 at 13:59




So @moewe I took your advice and made an MWE at gist.github.com/gfarrell/9892791. I've copied my document's original preamble exactly. I've included a citation for every bib entry. This MWE doesn't die on printbibliography, but it doesn't properly cite anything either. All the citations are just printed as the citation keys, and the references section isn't populated (see compiled PDF here: cl.ly/2f1e3T243o1n). I've tried multiple runs but no cigar. It seems I can't even create a proper MWE...
– GTF
Mar 31 '14 at 13:59












(OK, ignore the problem with the MWE, Biber was throwing a hissy fit - fixed using bit.ly/1gHp3Bm) I'll go through the citations to see what breaks.
– GTF
Mar 31 '14 at 14:10




(OK, ignore the problem with the MWE, Biber was throwing a hissy fit - fixed using bit.ly/1gHp3Bm) I'll go through the citations to see what breaks.
– GTF
Mar 31 '14 at 14:10










3 Answers
3






active

oldest

votes

















up vote
7
down vote













I had a similar issue. I pinpointed the problem to be in the .bib file. My advice is to carefully examine your .bib file for possible
ambiguous syntax. In my case, the problematic syntax was:



...
title = {A 70~kW stationary fuel cell system},
...


The undefined control sequence issue was resolved, when this was changed to the following (i.e., the expression with the tilde was enclosed in the curly braces):



...
title = {A {70~kW} stationary fuel cell system},
...


A short comment (maybe someone will find it useful). In my case, the issue occurred after the matlab-prettifier package was loaded, which also loads the listings package. Until these packages were load, I had experienced no issues whatsoever.






share|improve this answer






























    up vote
    5
    down vote



    accepted










    The problem in the bibliography.bib file (https://gist.github.com/gfarrell/9892791) was an undefined control sequence after all: ADSABS inserts control sequences for journals like aap.



    Removing these and replacing them with the actual journal names fixes the problem.



    (If anyone knows a package that defines all of these it would be quite helpful).






    share|improve this answer

















    • 2




      Another possible cause, which I experienced after switching from bibtex to biblatex, is the use of fancy quotes (') and hyphens (-). After replacing these with plain text the errors went away.
      – jsaven
      Dec 6 '16 at 10:57


















    up vote
    0
    down vote













    I had the same problem from a bibtex entry which was imported by DOI (using Jabref).



    In one article's title there was a {textquotesingle} included. This caused biblatex to break.



    After removing it, the compilation worked again.






    share|improve this answer

















    • 1




      In a short test I ran {textquotesingle} seemed to work in the title field if comped with Biber (indeed Biber converts it to {'}, which may or may not be a good idea). If compiled with BibTeX, the command is not converted and may be reported as unknown if the textcomp is not loaded, since textquotesingle is not defined in the LaTeX kernel for all encodings, see tex.stackexchange.com/q/202166/35864.
      – moewe
      Dec 7 at 14:37










    • Thanks for the effort. I did not check for missing packages.
      – loki
      Dec 7 at 14:40











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    3 Answers
    3






    active

    oldest

    votes








    3 Answers
    3






    active

    oldest

    votes









    active

    oldest

    votes






    active

    oldest

    votes








    up vote
    7
    down vote













    I had a similar issue. I pinpointed the problem to be in the .bib file. My advice is to carefully examine your .bib file for possible
    ambiguous syntax. In my case, the problematic syntax was:



    ...
    title = {A 70~kW stationary fuel cell system},
    ...


    The undefined control sequence issue was resolved, when this was changed to the following (i.e., the expression with the tilde was enclosed in the curly braces):



    ...
    title = {A {70~kW} stationary fuel cell system},
    ...


    A short comment (maybe someone will find it useful). In my case, the issue occurred after the matlab-prettifier package was loaded, which also loads the listings package. Until these packages were load, I had experienced no issues whatsoever.






    share|improve this answer



























      up vote
      7
      down vote













      I had a similar issue. I pinpointed the problem to be in the .bib file. My advice is to carefully examine your .bib file for possible
      ambiguous syntax. In my case, the problematic syntax was:



      ...
      title = {A 70~kW stationary fuel cell system},
      ...


      The undefined control sequence issue was resolved, when this was changed to the following (i.e., the expression with the tilde was enclosed in the curly braces):



      ...
      title = {A {70~kW} stationary fuel cell system},
      ...


      A short comment (maybe someone will find it useful). In my case, the issue occurred after the matlab-prettifier package was loaded, which also loads the listings package. Until these packages were load, I had experienced no issues whatsoever.






      share|improve this answer

























        up vote
        7
        down vote










        up vote
        7
        down vote









        I had a similar issue. I pinpointed the problem to be in the .bib file. My advice is to carefully examine your .bib file for possible
        ambiguous syntax. In my case, the problematic syntax was:



        ...
        title = {A 70~kW stationary fuel cell system},
        ...


        The undefined control sequence issue was resolved, when this was changed to the following (i.e., the expression with the tilde was enclosed in the curly braces):



        ...
        title = {A {70~kW} stationary fuel cell system},
        ...


        A short comment (maybe someone will find it useful). In my case, the issue occurred after the matlab-prettifier package was loaded, which also loads the listings package. Until these packages were load, I had experienced no issues whatsoever.






        share|improve this answer














        I had a similar issue. I pinpointed the problem to be in the .bib file. My advice is to carefully examine your .bib file for possible
        ambiguous syntax. In my case, the problematic syntax was:



        ...
        title = {A 70~kW stationary fuel cell system},
        ...


        The undefined control sequence issue was resolved, when this was changed to the following (i.e., the expression with the tilde was enclosed in the curly braces):



        ...
        title = {A {70~kW} stationary fuel cell system},
        ...


        A short comment (maybe someone will find it useful). In my case, the issue occurred after the matlab-prettifier package was loaded, which also loads the listings package. Until these packages were load, I had experienced no issues whatsoever.







        share|improve this answer














        share|improve this answer



        share|improve this answer








        edited Apr 26 '15 at 22:11

























        answered Apr 26 '15 at 17:53









        Andrej Debenjak

        30134




        30134






















            up vote
            5
            down vote



            accepted










            The problem in the bibliography.bib file (https://gist.github.com/gfarrell/9892791) was an undefined control sequence after all: ADSABS inserts control sequences for journals like aap.



            Removing these and replacing them with the actual journal names fixes the problem.



            (If anyone knows a package that defines all of these it would be quite helpful).






            share|improve this answer

















            • 2




              Another possible cause, which I experienced after switching from bibtex to biblatex, is the use of fancy quotes (') and hyphens (-). After replacing these with plain text the errors went away.
              – jsaven
              Dec 6 '16 at 10:57















            up vote
            5
            down vote



            accepted










            The problem in the bibliography.bib file (https://gist.github.com/gfarrell/9892791) was an undefined control sequence after all: ADSABS inserts control sequences for journals like aap.



            Removing these and replacing them with the actual journal names fixes the problem.



            (If anyone knows a package that defines all of these it would be quite helpful).






            share|improve this answer

















            • 2




              Another possible cause, which I experienced after switching from bibtex to biblatex, is the use of fancy quotes (') and hyphens (-). After replacing these with plain text the errors went away.
              – jsaven
              Dec 6 '16 at 10:57













            up vote
            5
            down vote



            accepted







            up vote
            5
            down vote



            accepted






            The problem in the bibliography.bib file (https://gist.github.com/gfarrell/9892791) was an undefined control sequence after all: ADSABS inserts control sequences for journals like aap.



            Removing these and replacing them with the actual journal names fixes the problem.



            (If anyone knows a package that defines all of these it would be quite helpful).






            share|improve this answer












            The problem in the bibliography.bib file (https://gist.github.com/gfarrell/9892791) was an undefined control sequence after all: ADSABS inserts control sequences for journals like aap.



            Removing these and replacing them with the actual journal names fixes the problem.



            (If anyone knows a package that defines all of these it would be quite helpful).







            share|improve this answer












            share|improve this answer



            share|improve this answer










            answered Mar 31 '14 at 14:16









            GTF

            191117




            191117








            • 2




              Another possible cause, which I experienced after switching from bibtex to biblatex, is the use of fancy quotes (') and hyphens (-). After replacing these with plain text the errors went away.
              – jsaven
              Dec 6 '16 at 10:57














            • 2




              Another possible cause, which I experienced after switching from bibtex to biblatex, is the use of fancy quotes (') and hyphens (-). After replacing these with plain text the errors went away.
              – jsaven
              Dec 6 '16 at 10:57








            2




            2




            Another possible cause, which I experienced after switching from bibtex to biblatex, is the use of fancy quotes (') and hyphens (-). After replacing these with plain text the errors went away.
            – jsaven
            Dec 6 '16 at 10:57




            Another possible cause, which I experienced after switching from bibtex to biblatex, is the use of fancy quotes (') and hyphens (-). After replacing these with plain text the errors went away.
            – jsaven
            Dec 6 '16 at 10:57










            up vote
            0
            down vote













            I had the same problem from a bibtex entry which was imported by DOI (using Jabref).



            In one article's title there was a {textquotesingle} included. This caused biblatex to break.



            After removing it, the compilation worked again.






            share|improve this answer

















            • 1




              In a short test I ran {textquotesingle} seemed to work in the title field if comped with Biber (indeed Biber converts it to {'}, which may or may not be a good idea). If compiled with BibTeX, the command is not converted and may be reported as unknown if the textcomp is not loaded, since textquotesingle is not defined in the LaTeX kernel for all encodings, see tex.stackexchange.com/q/202166/35864.
              – moewe
              Dec 7 at 14:37










            • Thanks for the effort. I did not check for missing packages.
              – loki
              Dec 7 at 14:40















            up vote
            0
            down vote













            I had the same problem from a bibtex entry which was imported by DOI (using Jabref).



            In one article's title there was a {textquotesingle} included. This caused biblatex to break.



            After removing it, the compilation worked again.






            share|improve this answer

















            • 1




              In a short test I ran {textquotesingle} seemed to work in the title field if comped with Biber (indeed Biber converts it to {'}, which may or may not be a good idea). If compiled with BibTeX, the command is not converted and may be reported as unknown if the textcomp is not loaded, since textquotesingle is not defined in the LaTeX kernel for all encodings, see tex.stackexchange.com/q/202166/35864.
              – moewe
              Dec 7 at 14:37










            • Thanks for the effort. I did not check for missing packages.
              – loki
              Dec 7 at 14:40













            up vote
            0
            down vote










            up vote
            0
            down vote









            I had the same problem from a bibtex entry which was imported by DOI (using Jabref).



            In one article's title there was a {textquotesingle} included. This caused biblatex to break.



            After removing it, the compilation worked again.






            share|improve this answer












            I had the same problem from a bibtex entry which was imported by DOI (using Jabref).



            In one article's title there was a {textquotesingle} included. This caused biblatex to break.



            After removing it, the compilation worked again.







            share|improve this answer












            share|improve this answer



            share|improve this answer










            answered Dec 7 at 14:14









            loki

            17018




            17018








            • 1




              In a short test I ran {textquotesingle} seemed to work in the title field if comped with Biber (indeed Biber converts it to {'}, which may or may not be a good idea). If compiled with BibTeX, the command is not converted and may be reported as unknown if the textcomp is not loaded, since textquotesingle is not defined in the LaTeX kernel for all encodings, see tex.stackexchange.com/q/202166/35864.
              – moewe
              Dec 7 at 14:37










            • Thanks for the effort. I did not check for missing packages.
              – loki
              Dec 7 at 14:40














            • 1




              In a short test I ran {textquotesingle} seemed to work in the title field if comped with Biber (indeed Biber converts it to {'}, which may or may not be a good idea). If compiled with BibTeX, the command is not converted and may be reported as unknown if the textcomp is not loaded, since textquotesingle is not defined in the LaTeX kernel for all encodings, see tex.stackexchange.com/q/202166/35864.
              – moewe
              Dec 7 at 14:37










            • Thanks for the effort. I did not check for missing packages.
              – loki
              Dec 7 at 14:40








            1




            1




            In a short test I ran {textquotesingle} seemed to work in the title field if comped with Biber (indeed Biber converts it to {'}, which may or may not be a good idea). If compiled with BibTeX, the command is not converted and may be reported as unknown if the textcomp is not loaded, since textquotesingle is not defined in the LaTeX kernel for all encodings, see tex.stackexchange.com/q/202166/35864.
            – moewe
            Dec 7 at 14:37




            In a short test I ran {textquotesingle} seemed to work in the title field if comped with Biber (indeed Biber converts it to {'}, which may or may not be a good idea). If compiled with BibTeX, the command is not converted and may be reported as unknown if the textcomp is not loaded, since textquotesingle is not defined in the LaTeX kernel for all encodings, see tex.stackexchange.com/q/202166/35864.
            – moewe
            Dec 7 at 14:37












            Thanks for the effort. I did not check for missing packages.
            – loki
            Dec 7 at 14:40




            Thanks for the effort. I did not check for missing packages.
            – loki
            Dec 7 at 14:40


















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