Problems Installing the Devtools Package

Problems installing the devtools package

As per damienfrancois's suggestion, I installed libcurl4-gnutls-dev and the problem was solved.

EDIT (@dardisco)

In your shell:

apt-get -y build-dep libcurl4-gnutls-dev
apt-get -y install libcurl4-gnutls-dev

Cannot install devtools package after upgrading R

The error message says:

there is no package called ‘curl’

Run:

install.packages(c('devtools','curl'))

Then try library('devtools')

If any other error persists, then update your post.

Problems installing packages devtools and callr on Windows

I had same problem. I think your problem is, that latest Rtools version needs to be installed. Devtools will install properly including dependencies to callr and processx after Rtools is installed. So do the following:

1. Delete the callr and processx and devtools packages from your library folder under your Rversion folder.
2. Close Rstudio or R shell.
3. Download recommended version from this site:
   https://cran.r-project.org/bin/windows/Rtools/
   Follow instructions here: http://jtleek.com/modules/01_DataScientistToolbox/02_10_rtools/#6
4. After rtools and then devtools are installed, check with find_rtools() if TRUE

Now callr and processx should be installed also as you can see in your library folder.

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