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
knuth-morris-pratt
generic-type-argument
hprof
database-metadata
firebird2.5
optimization
add
browser-feature-detection
zero-pad
bscscan
npm-registry
getaddrinfo
azure-sql-server
multiway-tree
information-schema
fold-expression
react-props
amazon-cognito
typechain
jquery-svg
x-accel-redirect
random-walk
lockscreen
segment-analytics
mws
uibarbuttonitem
redis-sentinel
unionfs
lispworks
fb-idb