\item[Public : ] Dans les clouds ​​publics,
 \item[Privé : ] Dans les clouds ​​privés,


I don't know why I got the error mentioned in the question knowing that I worked with this syntax before.

How can I solve this ?

  • Welcome to TeX.SX! Please post a full compilable example (MWE) to help us help you. Have you loaded inputenc (maybe with an option other than utf8)? – TeXnician May 25 '17 at 18:05
  • thanks @TeXnician, for the packages I used this : \usepackage[utf8]{inputenc} \usepackage[T1]{fontenc} \usepackage[french]{babel} – Sendjasni May 25 '17 at 18:10

There are four characters U+200B (ZERO WIDTH SPACE) between clouds and publics/privés. A simple fix is to remove the space with the p and retype them. Maybe, these characters were introduced by the editor or some copy/paste operation.

  • Well I can't see where are the spaces, there is only one. – Sendjasni May 25 '17 at 18:17
  • @Sendja Nope. Move the cursor to the right/left with direction keys (not with the mouse) and count the keystrokes to pass from the "s" to the "p" and viceversa. Only two or maybe some more? – Fran May 25 '17 at 18:22
  • @Sendja Copy the string “clouds ​​privés” from your question (or from your input file) and paste into a website like r12a.github.io/uniview (and click on the down arrow), to see for yourself. Or just delete all the spaces and add one normally. – ShreevatsaR May 25 '17 at 18:22

These errors are hard to debug because if you have a long document then add a citation to a bibtex entry which has a non-unicode character, it's pretty hard to know which citation is the problem and where to look.

My solution was to do the following:

Run pdflatex or whatever, at the command line. This gives you the error in "console" format, like this:

Package inputenc Error: Unicode char ́ (U+301) not set up for use with LaTeX 

I could then copy/paste the offending character (in my case, a weird accent on a bit of Spanish text) and paste it into the following command:

rgrep  ́ 

This allowed me to find the offending item in one of my .bib files and I could make the fix and get on with my life.

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