File 'english-ieee.lbx' not found! Ignoring mapping 'english' -> 'english-ieee'
File 'english-ieee.lbx' not found! Ignoring mapping 'english' -> 'english-ieee'
I believe an update has been made on biblatex package in recent past. The following code gives Package biblatex Warning: File 'english-ieee.lbx' not found! Ignoring mapping 'english' -> 'english-ieee warning which was not there a few weeks ago. Any suggestion on how to remove it please?
biblatex
Package biblatex Warning: File 'english-ieee.lbx' not found! Ignoring mapping 'english' -> 'english-ieee
% !TEX TS-program = pdfLaTeX
documentclass[12pt,a4paper]article
beginfilecontentsjobname.bib
@articleeinstein,
author = "Albert Einstein",
title = "Zur Elektrodynamik bewegter K"orper. (German)
[On the electrodynamics of moving bodies]",
journal = "Annalen der Physik",
volume = "322",
number = "10",
pages = "891--921",
year = "1905",
doi = "http://dx.doi.org/10.1002/andp.19053221004"
endfilecontents
usepackage[T1]fontenc % Use 8-bit encoding that has 256 glyphs
usepackageamsmath,amsfonts,amssymb
usepackage[%
style=ieee,
citestyle=numeric-comp,
sortcites=true,
natbib=true,
backend=bibtex,
]biblatex
addbibresourcejobname
begindocument
Einstein journal paper~citeeinstein.
printbibliography
enddocument
1 Answer
1
The warning is benign and can be ignored.
Since version 1.3 biblatex-ieee comes with a Hungarian localisation file, see https://github.com/josephwright/biblatex-ieee/pull/40 (and the long discussion in https://github.com/plk/biblatex/issues/717 for background). This file is loaded with a generic DeclareLanguageMappingSuffix-ieee and not with a specific DeclareLanguageMappingmagyarmagyar-ieee. That means that all languages try to resolve the language mapping, but all languages except magyar fail to find a corresponding -ieee.lbx file.
biblatex-ieee
DeclareLanguageMappingSuffix-ieee
DeclareLanguageMappingmagyarmagyar-ieee
magyar
-ieee.lbx
It has been discussed whether or not this warning should be downgraded to an info message, but when this last was suggested I thought it more useful to have this message be a warning. See https://github.com/plk/biblatex/issues/745. At the time I thought that such a situation would not occur as often since I did not really expect styles with single localisation files, plus those styles could use an explicit mapping to avoid the warning. If this is a big problem, we may have to reconsider this decision. Comments are appreciated.
If you are very bothered by the warning you can suppress it with the silence package:
silence
documentclassarticle
usepackagesilence
WarningFilterbiblatexFile 'english-ieee.lbx'
usepackage[style=ieee]biblatex
addbibresourcebiblatex-examples.bib
begindocument
Lorem citesigfridsson.
printbibliography
enddocument
Update
A while ago https://github.com/josephwright/biblatex-ieee/pull/43 was merged into biblatex-ieee and so the style now uses an explicit
biblatex-ieee
DeclareLanguageMappingmagyarmagyar-ieee
instead of the catch-all
DeclareLanguageMappingSuffix-ieee
In the next release of biblatex-ieee the warning should be gone.
biblatex-ieee
magyar
magyar
@Khaaba The Hungarian language needs special treatments of some fields that made it necessary to ship a
magyar-ieee.lbx with biblatex-ieee (you can read more about that in the links mentioned in the answer). As I explained the person who implemented this used the generic all-language mapping ``DeclareLanguageMappingSuffix-ieee` instead of a language specific DeclareLanguageMappingmagyarmagyar-ieee mapping.– moewe
Sep 17 '18 at 9:12
magyar-ieee.lbx
biblatex-ieee
DeclareLanguageMappingmagyarmagyar-ieee
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Now I can understand why I received such a warning nowadays which were never there. However, I could not understand why it should be merged only with
magyarlanguage, rather there should be a way to putmagyaror other languages with a problem free inclusion on English language (in my opinion).– Khaaba
Sep 17 '18 at 7:07