Why is my app crashing at launch?

The most likely cause of this issue is a syntax error in your app's configuration.

This is more likely if you are editing your appConfig.json app configuration file directly through your app's source code, though it could also happen if you've edited your app's configuration via the Build & Export section via our website.

Most importantly, your app's configuration file must be valid JSON.

If your appConfig.json looks fine, and your app is still crashing, please email us to troubleshoot further.