I'm assuming this error occurs when you tried to load the tidyverse package (We encourage folks to pose their questions with a reproducible example to help make questions as clear as they can be: FAQ: What's a reproducible example (`reprex`) and how do I create one?)
This error means you've tidyverse without updating the vctrs package. install.packages("vctrs") should fix the error.
Borrowing from this discussion, more generally, if you haven't updated packages in a while, you might want to try the "Update" button in the Packages tab of RStudio and consider updating other packages as well.