[firebase_core]: Swift Compiler Error (Xcode): Access level on imports require '-enable-experimental-feature AccessLevelOnImport'

[droplet-js]

Is there an existing issue for this?

• I have searched the existing issues.

Which plugins are affected?

Core

Which platforms are affected?

iOS

Description

Launching lib/main.dart on iPhone 15 Pro Max in debug mode...
Running Xcode build...
Xcode build done.                                           15.5s
Failed to build iOS app
Swift Compiler Error (Xcode): Access level on imports require '-enable-experimental-feature AccessLevelOnImport'
/Users/xxx/Library/Developer/Xcode/DerivedData/Runner-azhqzdrddqcttrcqteybyyctfgjw/SourcePackages/checkouts/firebase-ios-sdk/FirebaseCore/Internal/Sources/HeartbeatLogging/HeartbeatsPayload.swift:17:2

Reproducing the issue

dependencies:
  firebase_core: ^3.13.0
  firebase_analytics: ^11.4.5
  firebase_crashlytics: ^4.3.5
  firebase_performance: ^0.10.1+5

flutter:
  disable-swift-package-manager: false

Firebase Core version

3.13.0

Flutter Version

3.29.3

Relevant Log Output

Flutter dependencies

Expand Flutter dependencies snippet

Replace this line with the contents of your `flutter pub deps -- --style=compact`.

Additional context and comments

Package.resolved

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    {
      "identity" : "abseil-cpp-binary",
      "kind" : "remoteSourceControl",
      "location" : "https://github.com/google/abseil-cpp-binary.git",
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        "version" : "1.2024072200.0"
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      "identity" : "app-check",
      "kind" : "remoteSourceControl",
      "location" : "https://github.com/google/app-check.git",
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        "version" : "11.2.0"
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      "location" : "https://github.com/simolus3/CSQLite.git",
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      "identity" : "firebase-ios-sdk",
      "kind" : "remoteSourceControl",
      "location" : "https://github.com/firebase/firebase-ios-sdk",
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      "location" : "https://github.com/firebase/flutterfire",
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  "version" : 2
}

No response

[AngeloAvv]

I have the same issue here. It came out of nowhere, as I haven't updated the pubspec.lock since January.

It may be related to a transitive native dependency

[MichaelVerdon]

Hi there, can you show me your podfile please, I suspect this is related to what versions of iOS you are targetting. We had this issue with CI albeit with MacOS version and we fixed it by making it target a more recent version.

[droplet-js]

Hi there, can you show me your podfile please, I suspect this is related to what versions of iOS you are targetting. We had this issue with CI albeit with MacOS version and we fixed it by making it target a more recent version.

my app work with swift package manager, no podfile.

[MichaelVerdon]

Hi there, can you show me your podfile please, I suspect this is related to what versions of iOS you are targetting. We had this issue with CI albeit with MacOS version and we fixed it by making it target a more recent version.

my app work with swift package manager, no podfile.

Hi there, apologies I meant to share what versions of iOS you are targeting in your XCode workspace.

[AngeloAvv]

In my case, both Minimum Deployments and IPHONEOS_DEPLOYMENT_TARGET are 15.6 (the minimum available version in the latest versions of XCode)

[droplet-js]

Hi there, can you show me your podfile please, I suspect this is related to what versions of iOS you are targetting. We had this issue with CI albeit with MacOS version and we fixed it by making it target a more recent version.

my app work with swift package manager, no podfile.

Hi there, apologies I meant to share what versions of iOS you are targeting in your XCode workspace.

In my case, both Minimum Deployments and IPHONEOS_DEPLOYMENT_TARGET are 13.0

[SelaseKay]

Hi @droplet-js, it looks like this issue might be related to Xcode versions, as noted in this comment. Could you let us know which version of Xcode you're using?

[AngeloAvv]

Hey @SelaseKay , in my case, I'm using macos-latest on GitHub Actions. The same error does not occur on my machine with XCode 16.2

[AngeloAvv]

@SelaseKay I now realize macos-latest on GHA is not using macOS 15 (as I wrongly thought) but macOS 14 instead. Migrating to macos-15 image fixed the issue.

[bluefin939]

@AngeloAvv I faced the same issue and I updated both OS and xcode as suggested. After the update the issue got fixed. My xcode version was 15.4 updated to 16.3 and os version was 14.3 updated to 15.5. Thanks!