error aesthetics must be either length 1 or the same as the data (3) fill
library("ggplot2")
ggplot(data = warpbreaks, aes(x = wool, y = breaks)) +
geom_boxplot(
notch = T,
fill = c("blue", "red", "green3", "hotpink2"),
outlier.color = NULL
) +
theme(legend.position = "none") +
theme_classic()
#> Error: Aesthetics must be either length 1 or the same as the data (2): fill