My first reprex

[rudeboybert]

library(dplyr)
#> Warning: package 'dplyr' was built under R version 4.0.2
#> 
#> Attaching package: 'dplyr'
#> The following objects are masked from 'package:stats':
#> 
#>     filter, lag
#> The following objects are masked from 'package:base':
#> 
#>     intersect, setdiff, setequal, union

ggplot(mtcars, aes(x = as.factor(cyl), y = hp)) +
  geom_boxplot()
#> Error in ggplot(mtcars, aes(x = as.factor(cyl), y = hp)): could not find function "ggplot"

^{Created on 2020-10-06 by the reprex package (v0.3.0)}

[rudeboybert]

library(dplyr)
#> Warning: package 'dplyr' was built under R version 4.0.2
#> 
#> Attaching package: 'dplyr'
#> The following objects are masked from 'package:stats':
#> 
#>     filter, lag
#> The following objects are masked from 'package:base':
#> 
#>     intersect, setdiff, setequal, union
library(ggplot2)

ggplot(mtcars, aes(x = as.factor(cyl), y = hp)) +
  geom_boxplot()

^{Created on 2020-10-06 by the reprex package (v0.3.0)}