If you are like me and have multiple computers with spotty internet connection this happens all the time. #Warning: This will delete your conflicted copies
If you are not sure about deleting them, DON’T
find ~/Dropbox/ -path "*(*'s conflicted copy [0-9][0-9][0-9][0-9]-[0-9][0-9]-[0-9][0-9]*" -exec rm -f {} \;
If you just want to find out about your conflicted copies, then run this:
find ~/Dropbox/ -path "*(*'s conflicted copy [0-9][0-9][0-9][0-9]-[0-9][0-9]-[0-9][0-9]*" -print