I\'m unable to load the car package in R. I tried reinstalling using
install.packages(\"car\",dependencies=TRUE)
both from R and RStudio.
I got the same error. (I am using R 3.2.2) Please perform the following steps in sequence (after that try to activate installed caret package):
install.packages("lme4", repos="http://cran.rstudio.com/",type = "binary", dependencies=TRUE)
install.packages("nlme", repos="http://cran.rstudio.com/",type = "binary", dependencies=TRUE)
packageurl <- "https://cran.r-project.org/src/contrib/Archive/pbkrtest/pbkrtest_0.4-4.tar.gz"
install.packages(packageurl, repos=NULL, type="source")
No need to upgrade R. I am still using R 3.2.2. I performed these steps and it worked for me.