Hello,
Thank you for your reply.
Yes, I'm installing caret via install.packages().
After the installation it says it downloaded correctly caret into temporary files.
I copy all the files downloaded for caret and I paste them in the R library (where I also unzip them) .
I do this because anything that is downloaded in temporary files, disappears after a while.
Then, when I try to call caret through library(caret), or even through, require(caret), the error message appears. Just that error, nothing else.
The output of sessionInfo() is as follows:
sessionInfo()
R version 3.4.4 (2018-03-15)
Platform: x86_64-w64-mingw32/x64 (64-bit)
Running under: Windows 7 x64 (build 7601) Service Pack 1
Thank you in advance.
R