Heroku -- push not working

So I used heroku create with one of my apps, but then when on heroku.com I deleted the corresponding repository. I tried using heroku create again and it did give me another URL, but now when I try to push my app it keeps looking for the old one:

!  No such app as [old name]
fatal: The r开发者_高级运维emote end hung up unexpectedly

How do I get heroku to stop looking for this old app and use the newly created one?

Your local git repository has the old URL saved in its heroku remote. You have to update it using

git remote set-url --push heroku git@heroku.com:new_app.git

See Heroku's documentation and the Git manpage for more information.