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
auto-increment
oledbexception
quickfixj
react-native-pager-view
xcode-organizer
protobuff.net
world-map
has-many-polymorphs
wagtail-apiv2
audio-source
vxml
wp-editor
espn
ef4-code-only
polylineoptions
tx-indexed-search
swoole
apache-dubbo
checkin-policy
edges
errno
ora-01000
jdk1.8.0
trusted-computing
fmi
urhosharp
angular-file-upload
colon
q-learning
comby