Touch ID not working after screen replacement

Touch ID not working after screen replacement

Simple to do, about 20 mins, but Touch ID isnt working as some others mentioned. I wondered if a fresh instal might help? When I go into "Setting" and " Touch ID" to turn on, it tells me "Failed - Unable to complete Touch ID setup. Please go back and try again." Any ideas, not a deal breaker, I guess it beats picking glass out of the side of my face when trying to use the phone!