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iOS Build a Simple iPhone App with Swift Deploying to a Device Running on a Device

Running Problem

I keep trying the fix issue step but every time I try to link it I get an error that says an App ID with identifier com.teamtreehouse.Funfacts is not available please use a different string. Does any one know why? I only have 1 email address for everything I use so I dont think it is a problem related to giving the wrong email address.