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?

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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.