Shorebird build failing on Flutter v3.35.3

[japhetobsioma]

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• I confirm I have searched the Docs, Codemagic Sample Projects, and GitHub Discussions.
• I confirm the software versions on my local computer match the ones in CI environment (e.g. Xcode version, Gradle version). See here
• I confirm I am able to do a fresh clone of the repository and build the project on my local computer.

Which mobile framework are you using?

Flutter (Dart)

Steps to reproduce

1. Create a project with Flutter v3.35.3.
2. Configure your Codemagic workflow with the following settings:
   • Shorebird – Release
   • Flutter version – 3.35.3
3. Run the workflow.

Expected results

The build should complete and release successfully without any issues.

Actual results

The Android build process failed with the following output:

The current Flutter SDK version is 3.35.4-0.0.pre-17.
Because app requires Flutter SDK version 3.35.3, version solving failed.

I also found that Codemagic is using an outdated version of Shorebird (v1.6.39), while the latest version is v1.6.58.

Build id (optional)

68c01dda80e4b99a866d6615

[dam-ease]

Hello @japhetobsioma,
We resolved this via in-app chat, but sharing the solution here for anyone with a similar issue. If your pubspec.yaml has Flutter pinned under environment, e.g.:

environment:
  sdk: <version>
  flutter: <version>

Remove the flutter: line. That resolves the version-solving failure during shorebird release. This issue is currently being tracked on the Shorebird side; you can follow the issue for updates for when a fix is released and/or upvote the issue here: shorebirdtech/shorebird#3298.
As regards the shorebird version in the Workflow editor, we have had to pin it to version 1.6.39 to avoid breaking changes in the expected 2.0 release. At the moment, we are still looking into unpinning/upgrading this. No ETA yet, but if you run into any issues with this version, kindly share so I can investigate further.