ruby on rails - heroku open - no app specified

Question

I've just created a simple Rails app using

rails new myapp

then created the heroku stack using:

heroku create --stack cedar 

But when I try opening the app on Heroku using:

heroku open

I get:

 !    No app specified.
 !    Run this command from an app folder or specify which app to use with --app <app name>

And this:

$ heroku open --app myapp

gives me this:

 !    App not found

Am I missing something obvious?

Answer 1

If you have an existing app on Heroku and you are getting this no app specified message, you can correct it by running this on your local terminal:

heroku git:remote -a MyHerokuAppName