Cannot install devtools for R version 3.6.1

[maby200]

Hello, I am trying to install devtools in my pc but no luck on this.

Here is what the shell shows:

install.packages("C:/.../AppData/Local/Temp/Rtmp4eiV42/downloaded_packages")
Installing package into ‘C:/.../Documents/R/win-library/3.6’
(as ‘lib’ is unspecified)
Warning in install.packages :
  package ‘C:/.../AppData/Local/Temp/Rtmp4eiV42/downloaded_packages’ is not available (for R version 3.6.1)

Rtools is already installed.

Would you help me, please?

[andresrcs]

Hi Maby, welcome!

Do you have any particular reason for trying to use that folder path? usually you would install devtools with

install.packages("devtools")

If for some reason, you want to install from a file you would have to specify the file path not the folder path and use this arguments.

install.packages(path_to_file, repos = NULL, type="source")

[maby200]

@andresrcs

install.packages(path_to_file, repos = NULL, type="source")

Hello, andresrcs

install.packages('C:/Users/Sherwood/AppData/Local/Temp/RtmpkTfn52/downloaded_packages/devtools', repos = NULL, type="source")
Installing package into ‘C:/Users/Sherwood/Documents/R/win-library/3.6’
(as ‘lib’ is unspecified)
* installing *binary* package 'devtools' ...
cp: unknown option -- )
Try '/Rtools/bin/cp --help' for more information.
ERROR: installing binary package failed
* removing 'C:/Users/Sherwood/Documents/R/win-library/3.6/devtools'
* restoring previous 'C:/Users/Sherwood/Documents/R/win-library/3.6/devtools'
Warning in install.packages :
  installation of package ‘C:/Users/Sherwood/AppData/Local/Temp/RtmpkTfn52/downloaded_packages/devtools’ had non-zero exit status

So it means it is not successful, isn't it?

Though it appears as a package in my computer
!
and show the imports:

devtools     "callr, cli, covr (>= 3.2.0), crayon, desc, digest, DT,\nellipsis (>= 0.3.0), glue, git2r (>= 0.23.0), httr (>= 0.4),\njsonlite, memoise (>= 1.0.0), pkgbuild (>= 1.0.3), pkgload (>=\n1.0.2), rcmdcheck (>= 1.3.3), remotes (>= 2.1.0), rlang,\nroxygen2 (>= 6.1.1), rstudioapi (>= 0.7), rversions,\nsessioninfo (>= 1.1.1), stats, testthat (>= 2.1.1), tools,\nutils, withr"

and the suggests as well:

devtools     "BiocManager, bitops, curl (>= 0.9), evaluate, foghorn (>=\n1.1.0), gmailr (> 0.7.0), knitr, lintr (>= 0.2.1), mockery,\npingr, MASS, pkgdown, Rcpp (>= 0.10.0), rhub (>= 1.0.2),\nrmarkdown, spelling (>= 1.1), whisker"  

i try seeing in the library but prompts this message:

library(devtools)
Loading required package: usethis
Error: package or namespace load failed for ‘usethis’ in loadNamespace(j <- i[[1L]], c(lib.loc, .libPaths()), versionCheck = vI[[j]]):
 there is no package called ‘Rcpp’
Error: package ‘usethis’ could not be loaded

[andresrcs]

Again, you are trying to use a folder path not a file path, could you explain why are you trying to use the path to a temp folder? If you are trying to install off-line you have to use the package source file (.tar.gz) or the windows binaries (.zip). also, if you are trying to install a binary file then remove the type="source" argument.

[andresrcs]

@maby200

library(devtools) Loading required package: usethis Error: package or namespace load failed for ‘usethis’ in loadNamespace(j <- i[[1L]], c(lib.loc, .libPaths()), versionCheck = vI[[j]]): there is no package called ‘Rcpp’ Error: package ‘usethis’ could not be loaded

You are missing the Rcpp package dependency, try installing it

install.packages("Rcpp", dependencies = TRUE)

[maby200]

Thanks a lot, andresrcs

problem solved.