Make sure .travis.yml both starts and ends like in the article, and you’ve pushed the changes to your repo (git push) so the file appears in GitHub.

Or if you don’t find your .ipa file, it should be in your releases:

Alternatively, create a project called flutter_ios and use this prebuilt .ipa:

https://github.com/gabrc52/flutter_ios/releases/download/untagged-d6e83880a05bee237b26/app.ipa

Let me know if it worked, or if you’re still having trouble.