Cleaning us Census Data

In “Cleaning Us Census Data” project when I write these lines:
“files <- list.files(pattern = “states_.*csv”)
df_list <- lapply(files, read_csv)
us_census <- bind_rows(df_list)”
exactly the same as in the video and in the hints blocks a I get a Error message:" Error in match.fun(FUN): object ‘read_csv’ not found".
What should I do?
Thanks

I have the same problem, but after review several times. I found that I forgot to import “library(readr)”. After I import library(readr), the problem is solved. Hope it is still useful for you.