I have in the preamble:



I get these two errors:

conflicting options
'firstinits' conflicts with'uniquename=true'


Data encoding is 'latin1'
Use backend=bibtex8 or backend=biber

I need all these packages, how can I fix these errors?

  • i dont think you can use two input encoding latin1 and utf8. \usepackage[style=authoryearcomp,firstinits=true,maxcitenames=2,maxbibnames=99]{} , there is closing square bracket ']' missing probably. – texenthusiast Jun 26 '12 at 18:16
  • 3
    @texlearner A tip: You can use backticks ` to mark your inline code in comments as well as in posts. – doncherry Jun 26 '12 at 18:18
  • @texlearner: Also, inputenc is for the input encoding (of your .tex file), fontenc would be for the font encoding. – doncherry Jun 26 '12 at 18:19
  • @texlearner I have the same problem if I use just either 'latin1' or 'utf8'. I have to fix the options; I am trying to know how – Aya Jun 26 '12 at 18:33

I just had to do some sorting and cleaning up,
the following questions are probably relevant for you:

After that, I only had to do what biblatex was suggesting.
The following should compile without warnings/errors.
Please note the comments.

\usepackage{amssymb,amstext,amsmath,latexsym,mathtools}  % do you really need all?
\usepackage{pdfpages}  % you had that package twice

\usepackage[utf8]{inputenc}  % use utf8 for all files
\usepackage{cmbright}  % needs the cm-super package to be installed
% \usepackage{lmodern}  % try this one instead of cm-bright + cm-super

    backend=biber,  % run biber.exe instead of bibtex.exe
    uniquename=init,  % this option is compatible with firstinits

\usepackage{hyperref}  % hyperref should usually be the last package

Lorem ipsum, dolor sit amet \cite{kastenholz}.
At vero utilisam \cite{bertram}.
| improve this answer | |
  • Thank you very much. Yes without any errors, but the citation does not display! I am trying to get it right, then will tell you. Thank you – Aya Jun 26 '12 at 22:44
  • excuse me, should I compile with bibtex filename.aux or biber filename.aux? – Aya Jun 26 '12 at 23:57
  • biber actually operates on the .bcf file, so you should use that file extension or, even better, just use no file extension at all. – matth Jun 27 '12 at 7:25

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