[Tex/LaTex] How to fix Package inputenc Error: “Unicode char \u8:ï¿½ not set up for use with LaTeX.”

input-encodings

I get following error when running pdflatex in TeXstudio: "Package inputenc Error: Unicode char \u8:ï¿½ not set up for use with LaTeX. \end" on the last line of my document:

\printbibliography
\end{document}        <- error comes here

Best Answer

I managed to fix this on my own.

The problem was that my .tex file used utf-8 encoding, but my .bib file used ANSI-encoding. The error presented itself, when I added a bibliography entry which contained an apostrophe. To fix this I converted the .bib file to utf-8 encoding with Notepad++ and removed the files produced by pdflatex (aux, .bbl, .bcf etc.) and then ran pdflatex again.

Related Solutions

[Tex/LaTex] Problem after copying text: inputenc Error: Unicode char \u8:‭ not set up for use with LaTeX

Unhappily utf8.def does not show the numerical representation for the missing Unicode character. The missing character <char> is shown directly in macro \u8:<char>. The following example adds the numerical information in the error message:

\documentclass{article}
\usepackage[utf8]{inputenc}
\usepackage{stringenc}
\usepackage{pdfescape}

\makeatletter
\renewcommand*{\UTFviii@defined}[1]{%
  \ifx#1\relax
    \begingroup
      % Remove prefix "\u8:"
      \def\x##1:{}%
      % Extract Unicode char from command name
      % (utf8.def does not support surrogates)
      \edef\x{\expandafter\x\string#1}%
      \StringEncodingConvert\x\x{utf8}{utf16be}% convert to UTF-16BE
      % Hexadecimal representation
      \EdefEscapeHex\x\x
      % Enhanced error message
      \PackageError{inputenc}{Unicode\space char\space \string#1\space
                              (U+\x)\MessageBreak
                              not\space set\space up\space
                              for\space use\space with\space LaTeX}\@eha
    \endgroup
  \else\expandafter
    #1%
  \fi
}
\makeatother

\begin{document}
^^c2^^a0 % 7-bit input for U+00A0
\end{document}

Result:

! Package inputenc Error: Unicode char \u8:  (U+00A0)
(inputenc)                not set up for use with LaTeX.

[Tex/LaTex] How to solve the `Package inputenc Error: Unicode char not set up for use with LaTeX` problem

You can declare these characters. For example, like this:

\DeclareUnicodeCharacter{25CF}{$\bullet$}
\DeclareUnicodeCharacter{251C}{\mbox{\kern.23em
  \vrule height2.2exdepth1exwidth.4pt\vrule height2.2ptdepth-1.8ptwidth.23em}}
\DeclareUnicodeCharacter{2500}{\mbox{\vrule height2.2ptdepth-1.8ptwidth.5em}}
\DeclareUnicodeCharacter{2514}{\mbox{\kern.23em
  \vrule height2.2exdepth-1.8ptwidth.4pt\vrule height2.2ptdepth-1.8ptwidth.23em}}

Best Answer

Related Solutions

[Tex/LaTex] Problem after copying text: inputenc Error: Unicode char \u8:‭ not set up for use with LaTeX

[Tex/LaTex] How to solve the `Package inputenc Error: Unicode char not set up for use with LaTeX` problem

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