R update not applied #22

Hello @dataprofessor, I just started to follow the "Web Apps in R: Build BMI Calculator web application in R for health monitoring | Shiny Tutorial Ep 5" tutorial. I´ve tried "run app" to get the pop-up window from the video and I encounter a problem:
Loading required package: shiny
Warning: package ‘shiny’ was built under R version 4.0.4
Warning: package ‘shinythemes’ was built under R version 4.0.5
Warning in file(con, "r") :
cannot open file 'about.md': No such file or directory
Error in file(con, "r") : cannot open the connection

I already tried "help">"check updates" and quitting but I only get a "you are using the newest version of R studio" message. Should I delete my current R and download directly the latest version? seems that the updates were not taken in my R studio.
Thanks a lot for your feedback :)