Cannot load ggplot2 in juypter notebook

Question

I am trying to install the library(caret) but keep getting this error in juypter notebook. I also tried install.packages("ggplot2) and then library(ggplot2) but nothing works. Also install.packages('caret', dependencies = TRUE) but the same error

library(e1071)
library(caret)
library(kknn)
library(AUC)
library(MASS)


"package 'ggplot2' was built under R version 3.6.3"Error: package or namespace load failed for 'ggplot2' in loadNamespace(i, c(lib.loc, .libPaths()), versionCheck = vI[[i]]):
 namespace 'rlang' 0.3.4 is already loaded, but >= 0.4.10 is required
Error: package 'ggplot2' could not be loaded
Traceback:

1. library(caret)
2. .getRequiredPackages2(pkgInfo, quietly = quietly)
3. stop(gettextf("package %s could not be loaded", sQuote(pkg)), 
 .     call. = FALSE, domain = NA)

Answer 1

OP. I've seen this type of error before when loading/installing a package. Pay close attention to the text of the error - in particular, this part should jump out at you:

namespace 'rlang' 0.3.4 is already loaded, but >= 0.4.10 is required

From that line, it seems that your version of rlang will need to be updated first. Try the following:

install.packages('rlang')

# wait for install

install.packages('ggplot2')