Impossible to cite with biblatex in R Sweave

I am writing a report with R Sweave and I would like to cite papers. It is the first time I use Sweave, but in Latex alone I used to call my bibliography with biblatex. Therefore, I'm calling the .bib file placed in the folder where my .Rnw file is.

Here's my code :

\documentclass[11pt, twocolumn]{article}


test : \cite{helpman_globalization_2016}



and here's the paper I want to cite (placed in references.bib) :

  langid = {english},
  title = {Globalization and {{Wage Inequality}}},
  url = {},
  number = {22944},
  journaltitle = {NBER Working Paper Series},
  urldate = {2019-01-24},
  date = {2016},
  author = {Helpman, Elhanan},
  doi = {10.3386/w22944}

I searched in several links but I couldn't find a solution :

I also tried with backend = bibtex but it didn't work.
Here are the lines of the log describing the problem (I think) :

LaTeX Font Info:    ... okay on input line 8.
Package biblatex Info: Input encoding 'utf8' detected.
Package biblatex Info: Automatic encoding selection.
(biblatex)             Assuming data encoding 'utf8'.
Package biblatex Info: Input encoding 'utf8' specified.
Package biblatex Info: Data encoding 'utf8' specified.
(biblatex)             No need to reencode data.
\openout3 = `test_biblio-blx.bib'.

Package biblatex Info: Trying to load bibliographic data...
Package biblatex Info: ... file 'test_biblio.bbl' not found.

No file test_biblio.bbl.

Does anybody have a solution ?

Also asked here :

Solved : the solution is to :

  • compile the .Rnw file with R Sweave. You will get warnings/badboxes
  • compile the .tex file (created by Sweave) with another tex program (texstudio, kile...). That will create the .bbl file
  • recompile the .Rnw file with R Sweave

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