An error occured when knitting

[psychelzh]

When knitting, error occurred with the following message:

Error reading bibliography .\bib/packages.bib (line 94, column 1):
unexpected "}"
expecting space or "="
Error running filter pandoc-citeproc:
Filter returned error status 1

SessionInfo:

R version 3.4.3 (2017-11-30)
Platform: x86_64-w64-mingw32/x64 (64-bit)
Running under: Windows >= 8 x64 (build 9200)

Matrix products: default

locale:
[1] LC_COLLATE=Chinese (Simplified)_China.936  LC_CTYPE=Chinese (Simplified)_China.936   
[3] LC_MONETARY=Chinese (Simplified)_China.936 LC_NUMERIC=C                              
[5] LC_TIME=Chinese (Simplified)_China.936    

attached base packages:
[1] stats     graphics  grDevices utils     datasets  methods   base     

other attached packages:
[1] RevoUtils_10.0.7     RevoUtilsMath_10.0.1

loaded via a namespace (and not attached):
 [1] Rcpp_0.12.15    bookdown_0.7    digest_0.6.15   rprojroot_1.3-2 backports_1.1.2 magrittr_1.5   
 [7] evaluate_0.10.1 stringi_1.1.6   rmarkdown_1.9   tools_3.4.3     stringr_1.3.0   xfun_0.1       
[13] yaml_2.1.18     compiler_3.4.3  htmltools_0.3.6 knitr_1.20 

[psychelzh]

And I checked those lines in the bib/packages.bib, the lines of error are:

@Manual{R-readr,
  title = {readr: Read Rectangular Text Data},
  year = {2017},
  note = {R package version 1.1.1},
  url = {https://CRAN.R-project.org/package=readr},
NA
}

[ismayc]

Hi @psychelzh. Do you get a similar error when building from the master branch of the repository, i.e., the developmental version of the book?

[psychelzh]

Yes. The error persists.

[ismayc]

Can you comment out

knitr::write_bib(
  c(.packages(), "bookdown", "knitr", "rmarkdown", "nycflights13", "devtools", 
  "ggplot2", "webshot", "dygraphs", "tufte", "okcupiddata", "mosaic", "dplyr",
  "ggplot2movies", "fivethirtyeight", "tibble", "readr", "tidyr"), 
  "bib/packages.bib"
  )

in index.Rmd and try to build the book again?

[psychelzh]

Okay. Thanks, I will have a try soon.

[psychelzh]

It works while I comment out those lines suggested. Seemingly it is an issue of knitr::write_bib?

[ismayc]

It appears so. Does adding

knitr::write_bib(
  c(.packages(), "bookdown", "knitr", "rmarkdown", "nycflights13", "devtools", 
  "ggplot2", "webshot", "dygraphs", "tufte", "okcupiddata", "mosaic", "dplyr",
  "ggplot2movies", "fivethirtyeight", "tibble", "readr", "tidyr"), 
  "bib/packages.bib"
  )

to the bookdown-demo also produce this error? If so, I recommend creating an issue on bookdown.