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
arrayiterator
registerforactivityresult
earley-parser
libical
select-xml
avd
hornetq
uivibrancyeffect
iptc
tinymce-rails
amq-6
google-api-java-client
web-based
ddd-service
slack-dialog
cudafy.net
bamboo-specs
informatica-cloud
dicom
receiver
watch
testunit
ios-multithreading
egl
cocos2d-android
sqlobject
docker-ee
rsyslog
objcopy
cereal