Give a brief expanation on how to solve this error .

> library (tidyverse) Attaching packages tidyverse 1.3.0 -- V ggplot2 3.3.3 V purrr 0.3.4 v tibble 3.0.4 v dplyr 1.0.2 v tidyr 1 . 1.2 v stringr 1. 4.0 v readr 1. 4.0 v forcats 0.5.0 - - Conflicts -- tidyverse conflicts () -- x dplyr : :filter () masks stats: :filter () x dplyr : : lag () masks stats: :lag () > library (titanic) Warning message: package 'titanic' was built under R version 4.0.5 total $ + filter (sex tint c ("female", "male") ) $>$ + count (sex) Error in filter (., sex bint c ("female", "male") ) : object 'titanic' not found