Not able to use geom_text

Here is an example

library(ggplot2)

ggplot(mtcars, aes(cyl)) +
    geom_bar(fill = "black") +
    geom_text(aes(label = stat(count)), stat = "count", vjust = -0.5)

Created on 2021-07-22 by the reprex package (v2.0.0)

If you need more specific help, please provide a proper REPRoducible EXample (reprex) illustrating your issue.