37

I get the following error but I cannot locate the unicode character

Package inputenc Error: Unicode char   (U+202F)

TeXLive: 2017
OS: Linux Debian Stretch 9.1

Léo Léopold Hertz 준영
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    It's a "narrow no-break space". What is your editor? You must have a search function and can perhaps search for Unicode. – poch Oct 18 '17 at 11:35

2 Answers2

50

it is narrow no-break space so hard to spot but you can do

   \DeclareUnicodeCharacter{202F}{FIX ME!!!!}

If you want to just find it or

   \DeclareUnicodeCharacter{202F}{\,}

If you want to define it to something plausible.

David Carlisle
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    I would use the first form and then delete the character from the source file, it doesn't really have much cause being in a tex document, where spacing should be via commands not via characters, mostly. – David Carlisle Oct 18 '17 at 11:38
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    The character is not illegal. It is simply not (yet) declared. – Ulrike Fischer Oct 18 '17 at 11:53
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    Here is a hack that seems to work. It adds the text !!FIXME!! wherever an undeclared unicode character appears. Remember to put \makeatletter before, and \makeatother after this definition: \def\UTFviii@defined#1{\ifx#1\relax!!FIXME!!\else\expandafter#1\fi} – Harald Hanche-Olsen Oct 18 '17 at 11:56
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    @LéoLéopoldHertz준영 Done! – Harald Hanche-Olsen Oct 18 '17 at 12:43
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    @LéoLéopoldHertz준영 If this answer helped you please consider accepting the answer. – Philipp Oct 18 '17 at 13:51
16

If you insert the following code in the preamble (after loading inputenc), the text !!FIXME!! will appear wherever an undeclared unicode character occurred.

\makeatletter
  \def\UTFviii@defined#1{%
    \ifx#1\relax
      !!FIXME!!%
    \else
      \expandafte‌​r#1%
    \fi
  }
\makeatother

(Reference: This macro is defined in utf8.def. Run texdoc utf8ienc for the package documentation. Since the package could change in the future, this hack may also stop working in the future; so beware!)

Harald Hanche-Olsen
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