In readr, where combine using parameter col_names = TRUE and col_character as below code3, it's failed and the error message as attached image. Anyone can help
ruffle
undefined-symbol
4g
distance-matrix
apache-httpclient-4.x
hypersql
fee
selenium-grid2
tss.msr
ckan
vue-good-table
binary-tree
android-embedded-api
karaf-maven-plugin
ucwa
kendo-mobile
facebook-debugger
spiffe
xamarin.forms
nemlogin
modernizr
jolokia
dfd
embedded-javascript
createobjecturl
ngx-contextmenu
google-reporting-api
urllib
typedoc
countries