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
jquery-templates
flat-file
winverifytrust
visualsvn
cartridge
facebook-page
retina-display
ajc
post-commit
rethinkdb-python
globus-toolkit
iolanguage
database-sequence
qz-tray
app-launcher
intentfilter
webdrivermanager-java
mission-control
wal
rdl
canoe
varnish
gui-builder
intl
temporal-difference
unsupervised-learning
objective-sharpie
timestep
observablelist
s-expression