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
cufft
ggrepel
content-negotiation
ocr
action-mapping
unistd.h
orbot
igloo
d3fc
maven-central
spannablestring
bgp
symfony-3.3
shift
django-imagekit
jack
forceclose
samsung-gear-fit
smartgwt
vdsp
goreleaser
uialertcontroller
trayicon
custom-painter
conftest
chip-8
events
b-tree-index
concordion
tig