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When I compile my document using latexmk.pl I get warning for every citation:

Latexmk: Citation 'XXX' on page YY undefined

The citation appears in the References at the end of the document, but at the place of \cite only the (?) is shown.

The document is divided into many files in different directories, but same happens in master tex file, the bib file is in root folder along with master tex file.

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closed as too localized by Joseph Wright Sep 6 '11 at 7:55

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2 Answers 2

Usually, these errors occur because the LaTeX compiler needs to run over the document more than once to get everything right, since it uses auxiliary files for keeping track of equations, citations etc.

If you're using BiBTeX, the recommended compile procedure is

  1. pdflatex yourdocument.tex
  2. bibtex yourdocument.aux (note the file ending)
  3. pdflatex yourdocument.tex
  4. pdflatex yourdocument.tex

but if you're not changing the order or location (within sections) of references, only a single run of pdflatex yourdocument.tex is usually necessary.

The reason for this is simply that pdflatex reads information from its auxiliary files on-the-fly, and at the same time updates them. Without running through this entire compile procedure, you can't be sure that all files are updated all the way until before the fourth step.

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As I use latexmk this is done automatically I suppose. –  liborw Apr 27 '11 at 6:53
up vote 0 down vote accepted

Fixed: The problem were probably related to the harvard package, everything is fine after I comment the \usepackage[abbr,dcucite]{harvard}

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Feel free to accept this answer as it solved your problem! –  doncherry Sep 5 '11 at 21:50

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