Problems installing the devtools package

Question

I wish to use the devtools package. I\'ve run the following commands:

> install.packages(\"devtools\", dependencies = TRUE)
....
> library         


        

Answer 1

If you are using Ubuntu/Linux:

sudo apt-get install libcurl4-openssl-dev libssl-dev

Answer 2

Best solution to solve this. I was searching the same problem. I spent 1 day and then I got solution. Now, It is well.

Check your R version in bash terminal if you are on Ubuntu or Linux.

R --version

then use these commands

sudo apt-get update 
sudo apt-get upgrade              

Now check the new version of R. Use this command

sudo apt-cache showpkg r-base

Now update the R only.

sudo apt-get install r-base

Now R will be updated and the error will be removed. Make sure to cd the library path where you want to install the new package. This way in bash terminal. Try to create the R directory at home folder or it will be at the default. Locate this location for package ~/R/lib/ .

R
.libPaths("~/R/lib")
install.packages("devtools")

OR

install.packages("devtools", lib="~/R/lib")

Answer 3

CentOS 7: I had the libcurl and gnutls development packages installed already, but still got the "cannot load git2r.so" error when installing devtools in R. I had to "reinstall" them for it to work:

sudo yum reinstall gnutls-devel.x86_64

Answer 4

I hit this issue with Ubuntu 18.04 and none of the previous answers solved it. Eventually I succeeded by installing devtools with the package manager itself:

sudo apt install r-cran-devtools

Answer 5

In case if you are using CentOS:

Try:

sudo yum -y install libcurl libcurl-devel

Answer 6

Nowadays (ubuntu 14.04) I need both:

 $ sudo apt-get -y install libcurl4-gnutls-dev
 $ sudo apt-get -y install libssl-dev