Troubleshooting Heroku “No such app” error
Table of Contents
Heroku shows a “No such app” page when a request reaches Heroku for a host name that is not added to any Heroku app. Your DNS in DNSimple is working. Add the host name to your app at Heroku to fix it.
What the error looks like
The browser tab is titled “No such app | Heroku”, and the page says “There’s nothing here, yet.”
Add the host name to your app
Add each host name your visitors use to your app at Heroku, as in Heroku’s Custom Domain Names for Apps. The apex and www are separate host names, so if both point to Heroku, add both:
heroku domains:add example.com -a your-app
heroku domains:add www.example.com -a your-app
If you only add example.com, then www.example.com shows “No such app”, and the other way around.
Each host name gets its own DNS target, such as whispering-willow-5678.herokudns.com. Make sure the record in DNSimple points to that target, as in Pointing the Domain Apex to Heroku. The Heroku Connector adds the host name at Heroku and creates the DNS record for you. See Heroku Connector to set it up.
Have more questions?
If you have additional questions or need any assistance with the “No such app” error, contact support, and we will be happy to help. You can also read more about DNSimple integrations.