Error in select on running application

[Data-drone]

I followed the README and ran

if (!require(devtools))
  install.packages("devtools")
devtools::install_github("rstudio/leaflet")
shiny::runGitHub("rstudio/shiny-examples", subdir="063-superzip-example")

and I got:

Downloading https://github.com/rstudio/shiny-examples/archive/master.tar.gz
Error in select(., City = city.x, State = state.x, Zipcode = zipcode,  : 
  unused arguments (City = city.x, State = state.x, Zipcode = zipcode, Rank = rank, Score = centile, Superzip = superzip, Population = adultpop, College = college, Income = income, Lat = latitude, Long = longitude)