In the help decoument, I find example like
Examples
## Not run:
use_package("ggplot2")
use_package("dplyr", "suggests")
use_dev_package("glue")
## End(Not run)
But when I do this, I get errors below.
library(usethis)
use_package("dplyr", "data.table")
#> Error in match.arg(tolower(type), types): 'arg'应当是"imports", "depends", "suggests", "enhances", "linkingto"其中的一个
use_package("dplyr", "data.table",type = "Suggests")
#> Error in use_package("dplyr", "data.table", type = "Suggests"): 参数没有用("data.table")
Created on 2018-11-08 by the reprex package (v0.2.1)
Session info
devtools::session_info()
#> - Session info ----------------------------------------------------------
#> setting value
#> version R version 3.4.4 (2018-03-15)
#> os Windows 7 x64 SP 1
#> system x86_64, mingw32
#> ui RTerm
#> language (EN)
#> collate Chinese (Simplified)_People's Republic of China.936
#> ctype Chinese (Simplified)_People's Republic of China.936
#> tz Asia/Taipei
#> date 2018-11-08
#>
#> - Packages --------------------------------------------------------------
#> package * version date lib source
#> assertthat 0.2.0 2017-04-11 [1] CRAN (R 3.4.4)
#> backports 1.1.2 2017-12-13 [1] CRAN (R 3.4.3)
#> base64enc 0.1-3 2015-07-28 [1] CRAN (R 3.4.1)
#> callr 3.0.0 2018-08-24 [1] CRAN (R 3.4.4)
#> cli 1.0.1 2018-09-25 [1] CRAN (R 3.4.4)
#> crayon 1.3.4 2017-09-16 [1] CRAN (R 3.4.4)
#> debugme 1.1.0 2017-10-22 [4] CRAN (R 3.4.3)
#> desc 1.2.0 2018-05-01 [1] CRAN (R 3.4.4)
#> devtools 2.0.1 2018-10-26 [1] CRAN (R 3.4.4)
#> digest 0.6.18 2018-10-10 [1] CRAN (R 3.4.4)
#> evaluate 0.12 2018-10-09 [1] CRAN (R 3.4.4)
#> fs 1.2.6 2018-08-23 [1] CRAN (R 3.4.4)
#> glue 1.3.0 2018-07-17 [1] CRAN (R 3.4.4)
#> htmltools 0.3.6 2017-04-28 [1] CRAN (R 3.4.4)
#> knitr 1.20 2018-02-20 [1] CRAN (R 3.4.4)
#> magrittr 1.5 2014-11-22 [1] CRAN (R 3.4.4)
#> memoise 1.1.0 2017-04-21 [1] CRAN (R 3.4.4)
#> pkgbuild 1.0.2 2018-10-16 [1] CRAN (R 3.4.4)
#> pkgload 1.0.2 2018-10-29 [1] CRAN (R 3.4.4)
#> prettyunits 1.0.2 2015-07-13 [1] CRAN (R 3.4.4)
#> processx 3.2.0 2018-08-16 [1] CRAN (R 3.4.4)
#> ps 1.2.0 2018-10-16 [1] CRAN (R 3.4.4)
#> R6 2.3.0 2018-10-04 [1] CRAN (R 3.4.4)
#> Rcpp 0.12.19 2018-10-01 [1] CRAN (R 3.4.4)
#> remotes 2.0.2 2018-10-30 [1] CRAN (R 3.4.4)
#> rlang 0.3.0.1 2018-10-25 [1] CRAN (R 3.4.4)
#> rmarkdown 1.10 2018-06-11 [1] CRAN (R 3.4.4)
#> rprojroot 1.3-2 2018-01-03 [1] CRAN (R 3.4.4)
#> sessioninfo 1.1.0 2018-09-25 [1] CRAN (R 3.4.4)
#> stringi 1.1.7 2018-03-12 [1] CRAN (R 3.4.4)
#> stringr 1.3.1 2018-05-10 [1] CRAN (R 3.4.4)
#> testthat 2.0.0 2017-12-13 [4] CRAN (R 3.4.3)
#> usethis * 1.4.0 2018-08-14 [1] CRAN (R 3.4.4)
#> withr 2.1.2 2018-03-15 [1] CRAN (R 3.4.4)
#> yaml 2.2.0 2018-07-25 [1] CRAN (R 3.4.4)
#>
#> [1] D:/weDo/imp_rmd00/add2blog/packrat/lib/x86_64-w64-mingw32/3.4.4
#> [2] D:/weDo/imp_rmd00/add2blog/packrat/lib-ext/x86_64-w64-mingw32/3.4.4
#> [3] D:/weDo/imp_rmd00/add2blog/packrat/lib-R/x86_64-w64-mingw32/3.4.4
#> [4] C:/Program Files/R/R-3.4.4/library