Error when installing devtools with install_github on Windows 7

[nuno-agostinho]

I'm using Windows 7 (64-bit) to install the GitHub version of devtools with the command devtools::install_github("hadley/devtools", force = TRUE), but this fails with the following error:

Downloading GitHub repo hadley/devtools@master
from URL https://api.github.com/repos/hadley/devtools/zipball/master
Installing devtools
"C:/PROGRA~1/R/R-33~1.1/bin/i386/R" --no-site-file --no-environ --no-save  \
  --no-restore --quiet CMD INSTALL  \
  "C:/Users/Daniel/AppData/Local/Temp/RtmpeEa7Y3/devtoolsa701c934f7e/hadley-devtools-26c507b"  \
  --library="C:/Users/Daniel/Documents/R/win-library/3.3" --install-tests 

* installing *source* package 'devtools' ...
** R
** inst
** tests
** preparing package for lazy loading
** help
*** installing help indices
** building package indices
** installing vignettes
** testing if installed package can be loaded
*** arch - i386
*** arch - x64
Error : package 'devtools' is not installed for 'arch = x64'
Error: loading failed
Execution halted
ERROR: loading failed for 'x64'
* removing 'C:/Users/Daniel/Documents/R/win-library/3.3/devtools'
* restoring previous 'C:/Users/Daniel/Documents/R/win-library/3.3/devtools'
Warning in file.copy(lp, dirname(pkgdir), recursive = TRUE, copy.date = TRUE) :
  problem copying C:\Users\Daniel\Documents\R\win-library\3.3\00LOCK-hadley-devtools-26c507b\devtools\libs\i386\devtools.dll to C:\Users\Daniel\Documents\R\win-library\3.3\devtools\libs\i386\devtools.dll: Permission denied
Error: Command failed (1)

Do you know why this occurs?

[mpettis]

Following these instructions helped me (found after having similar issue, finding this issue): #426

[lbusett]

Hi. having the same problem on Windows 10 64 bit

[mpettis]

Did you try the instructions at: #426 ?

[lbusett]

thanks. solved.

I actually DID try those instructions before posting, and it wasn't working... I probably just had to restart RStudio.

[lock]

This old issue has been automatically locked. If you believe you have found a related problem, please file a new issue (with reprex) and link to this issue. https://reprex.tidyverse.org/