i was doing the integration workboook, but on Tutorial #3: Update the Heroku App Step #2: Update your Application with a New Branch item #5: i am getting an error.
In a browser tab or window, navigate to https://{appname}.herokuapp.com to see the changes (refresh your browser if needed).
i followed all the steps and got no errors all the way until this one.
thanks.
Attribution to: user7121
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