Unable to install forecast package in R

Question

When I run the following commmand:

  install.packages('forecast', dependencies = TRUE)
  library(forecast)

I get the error:

Error in loadNamespace(j <- i[[1L]], c(lib.loc, .libPaths()), versionCheck = vI[[j]]) : there is no package called 'ggplot2' In addition: Warning message: package 'forecast' was built under R version 3.2.5 Error: package or namespace load failed for 'forecast'

Anyone has had the same problem? I am using R Studio Version 1.1.456

Answer 1

Try installing (or reinstalling) ggplot2 .

remove.packages(ggplot2)
install.packages(ggplot2, dependencies = TRUE)