Error in .f(.x[[i]], ...) : attempt to apply non-function when running document()

[BillPetti]

I am trying to update a man file for my package and when trying to run devtools::document() I am getting a strange error:

devtools::document()
Updating baseballr documentation
Loading baseballr
Error in .f(.x[[i]], ...) : attempt to apply non-function

I've been unsuccessful searching for any reference to that error when running document(). The closest I came was this testthat issue, but installing the dev version (2.0.0.9000) did not fix it.

I have also tried backing out the changes to the underlying R file that was changed and am still seeing the same error.

I currently have roxygen2 version 6.1.0 and devtools version 1.13.6 installed.

[jimhester]

Could you push the latest version of the baseballr package to github (maybe in a branch?). We will not be able to debug this without being able to reproduce it ourselves.

Also suppling the value of traceback() after the error occurs would be useful.

[BillPetti]

Oops, yes that would help.

The latest version is here: BillPetti/baseballr

traceback()
11: .f(.x[[i]], ...)
10: .Call(map_impl, environment(), ".x", ".f", "list")
9: purrr::map(purrr::set_names(fields), ~dcf$get_field(.x))
8: read.description(desc_path)
7: read_pkg_description(path)
6: package_files(path)
5: parse_package(base_path, env = NULL, registry = registry, global_options = options)
4: roxygen2::roxygenise(pkg$path, roclets = roclets, load_code = ns_env)
3: force(code)
2: withr::with_envvar(r_env_vars(), roxygen2::roxygenise(pkg$path, 
       roclets = roclets, load_code = ns_env))
1: devtools::document()

Many thanks.

[jimhester]

I cannot reproduce this with the CRAN versions of devtools and roxygen2. Can you give your full sessioninfo::session_info() as well and double check you have committed everything in your local repository?

[BillPetti]

Sure. I've double checked my local repo matches the GitHub version.

Here's my session info:

devtools::session_info()
Session info ------------------------------------------------------------
 setting  value                       
 version  R version 3.4.1 (2017-06-30)
 system   x86_64, darwin15.6.0        
 ui       RStudio (1.0.153)           
 language (EN)                        
 collate  en_US.UTF-8                 
 tz       <NA>                        
 date     2018-08-30                  

Packages ----------------------------------------------------------------
 package      * version    date       source                            
 acepack        1.4.1      2016-10-29 CRAN (R 3.4.0)                    
 assertthat     0.2.0      2017-04-11 CRAN (R 3.4.0)                    
 backports      1.1.0      2017-05-22 CRAN (R 3.4.0)                    
 base         * 3.4.1      2017-07-07 local                             
 base64enc      0.1-3      2015-07-28 CRAN (R 3.4.0)                    
 baseballr    * 0.3.4.9002 <NA>       local                             
 bindr          0.1.1      2018-03-13 cran (@0.1.1)                     
 bindrcpp       0.2.2      2018-03-29 cran (@0.2.2)                     
 bitops         1.0-6      2013-08-17 CRAN (R 3.4.0)                    
 broom          0.4.5      2018-07-03 cran (@0.4.5)                     
 checkmate      1.8.3      2017-07-03 CRAN (R 3.4.1)                    
 cluster        2.0.7-1    2018-04-09 CRAN (R 3.4.4)                    
 colorspace     1.3-2      2016-12-14 CRAN (R 3.4.0)                    
 commonmark     1.4        2017-09-01 CRAN (R 3.4.1)                    
 compiler       3.4.1      2017-07-07 local                             
 crayon         1.3.4      2018-08-30 Github (r-lib/crayon@3e751fb)     
 curl           3.2        2018-03-28 cran (@3.2)                       
 data.table     1.11.4     2018-05-27 cran (@1.11.4)                    
 datasets     * 3.4.1      2017-07-07 local                             
 desc           1.1.1      2017-08-03 CRAN (R 3.4.1)                    
 devtools     * 1.13.6     2018-06-27 CRAN (R 3.4.4)                    
 digest         0.6.16     2018-08-22 cran (@0.6.16)                    
 dplyr          0.7.6      2018-06-29 cran (@0.7.6)                     
 foreign        0.8-69     2017-06-22 CRAN (R 3.4.1)                    
 Formula        1.2-3      2018-05-03 cran (@1.2-3)                     
 ggplot2        3.0.0      2018-07-03 CRAN (R 3.4.4)                    
 glue           1.3.0      2018-07-17 cran (@1.3.0)                     
 graphics     * 3.4.1      2017-07-07 local                             
 grDevices    * 3.4.1      2017-07-07 local                             
 grid           3.4.1      2017-07-07 local                             
 gridExtra      2.3        2017-09-09 cran (@2.3)                       
 gtable         0.2.0      2016-02-26 CRAN (R 3.4.0)                    
 hexbin         1.27.2     2018-01-15 cran (@1.27.2)                    
 highcharter    0.5.0      2017-01-17 CRAN (R 3.4.0)                    
 Hmisc          4.1-1      2018-01-03 cran (@4.1-1)                     
 hms            0.4.2      2018-03-10 cran (@0.4.2)                     
 htmlTable      1.12       2018-05-26 CRAN (R 3.4.4)                    
 htmltools      0.3.6      2017-04-28 CRAN (R 3.4.0)                    
 htmlwidgets    0.9        2017-07-10 CRAN (R 3.4.1)                    
 httr           1.3.1      2017-08-20 CRAN (R 3.4.1)                    
 igraph         1.1.2      2017-07-21 CRAN (R 3.4.1)                    
 jsonlite       1.5        2017-06-01 CRAN (R 3.4.0)                    
 knitr          1.20       2018-02-20 CRAN (R 3.4.3)                    
 lattice        0.20-35    2017-03-25 CRAN (R 3.4.1)                    
 latticeExtra   0.6-28     2016-02-09 CRAN (R 3.4.0)                    
 lazyeval       0.2.1      2017-10-29 cran (@0.2.1)                     
 lubridate      1.7.4      2018-04-11 cran (@1.7.4)                     
 magrittr       1.5        2014-11-22 CRAN (R 3.4.0)                    
 MASS           7.3-47     2017-02-26 CRAN (R 3.4.1)                    
 Matrix         1.2-11     2017-08-16 CRAN (R 3.4.1)                    
 memoise        1.1.0      2017-04-21 CRAN (R 3.4.0)                    
 methods      * 3.4.1      2017-07-07 local                             
 mgcv           1.8-19     2017-08-29 CRAN (R 3.4.1)                    
 mnormt         1.5-5      2016-10-15 CRAN (R 3.4.0)                    
 munsell        0.5.0      2018-06-12 cran (@0.5.0)                     
 nlme           3.1-131    2017-02-06 CRAN (R 3.4.1)                    
 nnet           7.3-12     2016-02-02 CRAN (R 3.4.1)                    
 parallel       3.4.1      2017-07-07 local                             
 pbapply        1.3-4      2018-01-10 cran (@1.3-4)                     
 pillar         1.1.0.9000 2018-02-24 Github (hadley/pillar@25931cf)    
 pitchRx        1.8.4      2018-05-28 Github (cpsievert/pitchRx@fe6c45f)
 pkgconfig      2.0.1      2017-03-21 CRAN (R 3.4.0)                    
 plyr           1.8.4      2016-06-08 CRAN (R 3.4.0)                    
 psych          1.8.4      2018-05-06 cran (@1.8.4)                     
 purrr          0.2.5      2018-05-29 cran (@0.2.5)                     
 quantmod       0.4-10     2017-06-20 CRAN (R 3.4.1)                    
 R6             2.2.2      2017-06-17 CRAN (R 3.4.0)                    
 RColorBrewer   1.1-2      2014-12-07 CRAN (R 3.4.0)                    
 Rcpp           0.12.18    2018-07-23 cran (@0.12.18)                   
 RCurl          1.95-4.8   2016-03-01 CRAN (R 3.4.0)                    
 readr          1.1.1      2017-05-16 CRAN (R 3.4.0)                    
 reldist        1.6-6      2016-10-09 CRAN (R 3.4.0)                    
 reshape2       1.4.3      2017-12-11 cran (@1.4.3)                     
 rlang          0.2.2      2018-08-16 cran (@0.2.2)                     
 rlist          0.4.6.1    2016-04-04 CRAN (R 3.4.0)                    
 roxygen2       6.1.0      2018-07-27 CRAN (R 3.4.4)                    
 rpart          4.1-11     2017-03-13 CRAN (R 3.4.1)                    
 rprojroot      1.2        2017-01-16 CRAN (R 3.4.0)                    
 rstudioapi     0.7        2017-09-07 cran (@0.7)                       
 rvest          0.3.2      2016-06-17 CRAN (R 3.4.0)                    
 scales         1.0.0      2018-08-09 cran (@1.0.0)                     
 splines        3.4.1      2017-07-07 local                             
 stats        * 3.4.1      2017-07-07 local                             
 stringi        1.2.4      2018-07-20 cran (@1.2.4)                     
 stringr        1.3.1      2018-05-10 cran (@1.3.1)                     
 survival       2.41-3     2017-04-04 CRAN (R 3.4.1)                    
 testthat       2.0.0.9000 2018-08-30 Github (r-lib/testthat@8216ebe)   
 tibble         1.4.2      2018-01-22 cran (@1.4.2)                     
 tidyr          0.8.1      2018-05-18 cran (@0.8.1)                     
 tidyselect     0.2.4      2018-02-26 cran (@0.2.4)                     
 tools          3.4.1      2017-07-07 local                             
 TTR            0.23-2     2017-07-11 CRAN (R 3.4.1)                    
 utils        * 3.4.1      2017-07-07 local                             
 withr          2.1.2      2018-03-15 cran (@2.1.2)                     
 XML            3.98-1.15  2018-08-10 CRAN (R 3.4.4)                    
 xml2           1.2.0      2018-01-24 cran (@1.2.0)                     
 XML2R          0.0.6      2014-03-10 CRAN (R 3.4.0)                    
 xts            0.10-0     2017-07-07 CRAN (R 3.4.1)                    
 zoo            1.8-0      2017-04-12 CRAN (R 3.4.0)  

[Yue-Jiang]

I just had the same issue with my package too, but it appears to be fixed by updating from R 3.4.1 to the current R 3.5.1.

[BillPetti]

Well, this makes two of us. Updated to R 3.5.1 this morning and no longer receive the error. Documentation builds with no problem.

[Deleetdk]

Also worked for me (Mint 18, previous R 3.4.x).

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