empty output if (unexplicit) missing import

[JosephBARBIERDARNAL]

Hi! is the following behavior something expected?

library(ggbump)
library(ggplot2)

# Create data
year <- rep(2019:2021, 3)
products_sold <- c(
  500, 600, 700,
  550, 650, 600,
  600, 400, 500
)
store <- c(
  "Store A", "Store A", "Store A",
  "Store B", "Store B", "Store B",
  "Store C", "Store C", "Store C"
)

# Create the new dataframe
df <- data.frame(
  year = year,
  products_sold = products_sold,
  store = store
)

ggplot(df, aes(x = year, y = products_sold, color = store)) +
  geom_bump()

The solution is actually to load the tidyverse and not only ggplot: library(tidyverse), but I'm not sure if that's something normal?