lib unspecified & Error in loadNamespace

Question

I had everything working with R and RStudio, but then I moved the folders when cleaning up my computer directories & files. Now I\'m getting the error message below.

Answer 1

The last time I encountered a very similar problem, I used this code which I got somewhere: install.packages("package's name", repos=c("http://rstudio.org/_packages", "http://cran.rstudio.com")) simply put your package's name in the quotation marks. Hope this helps.