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I am trying to install R devtools, but RStudio can't find the library. I came across this SO post and this github discussion which together might mean it is a Cygwin issue, but I have tried uninstalling git (and therefore my Cygwin copy) and reinstalling Rtools with no luck. Does anyone have ideas about other things to try?

My system:

  • Windows 10 with GIT bash installed (therefore Cygwin as well)
  • RStudio version 0.99.902
  • R version 3.3 
    > install.packages("devtools")
> library(devtools)
> find_rtools(T)
Error: running command '"C:/PROGRA~1/R/R-33~1.0/bin/x64/R" --no-site-file --no-environ --no-save --no-restore --quiet CMD config CC' had status 127

    My path (from within RStudio):

    > Sys.getenv()['PATH']
PATH                                           C:\Program
                                               Files\R\R-3.3.0\bin\x64;C:\ProgramData\Oracle\Java\javapath;C:\Windows\system32;C:\Windows;C:\Windows\System32\Wbem;C:\Windows\System32\WindowsPowerShell\v1.0\;C:\Program
                                               Files\Git\cmd;C:\cygwin32;C:\Program Files\Git\mingw64\bin;C:\Program
                                               Files\Git\usr\bin;C:\Users\king\Desktop\_REPOS\misc\stock_analysis\forex\oanda\ruby;C:\Users\king\.dnx\bin;C:\Program
                                               Files\Microsoft DNX\Dnvm\;C:\Ruby22-x64\bin
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    Rilcon42
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    1 Answers1

    3

    I ran in the same problems and the following instructions solved my problems. I am not sure any more, but I also think I had to set .libPaths() = “C:/R/R-3.2.2/library” (On windows)

    Christoph
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