Haven't been on R since April, but I having problems that have never happen before. I am trying to install the 'devtools' package and it will say it downloaded, but then it dissapears because of the "non-zero exit status".
- installing source package 'devtools' ...
** package 'devtools' successfully unpacked and MD5 sums checked
** byte-compile and prepare package for lazy loading
Error in loadNamespace(j <- i[[1L]], c(lib.loc, .libPaths()), versionCheck = vI[[j]]) :
namespace 'processx' 3.3.0 is being loaded, but >= 3.4.0 is required
ERROR: lazy loading failed for package 'devtools'
- removing 'C:/This/User/R/win-library/3.5/devtools'
In R CMD INSTALL
Warning in install.packages :
installation of package ‘devtools’ had non-zero exit status
So then I tried to update the process x package and get this message, alongside the same non-zero exit status.
WARNING: Rtools is required to build R packages but is not currently installed. Please download and install the appropriate version of Rtools before proceeding:
Can't solve this, have no idea what's going on. My R Studio is full updated, installed and reinstalled it and so on.