[Analytics]: rsync: [Receiver] mkdir "./build/macos/SourcePackages/firebase_analytics-12.4.5" failed: No such file or directory (2)

[stephane-archer]

Is there an existing issue for this?

• I have searched the existing issues.

Which plugins are affected?

Analytics

Which platforms are affected?

macOS

Description

flutter pub get
Resolving dependencies...
Downloading packages...
...
Got dependencies!
44 packages have newer versions incompatible with dependency constraints.
Try `flutter pub outdated` for more information.
Failed to copy plugin firebase_analytics:
sending incremental file list

rsync: [Receiver] mkdir "./build/macos/SourcePackages/firebase_analytics-12.4.5" failed: No such file or directory
(2)
rsync error: error in file IO (code 11) at main.c(795) [Receiver=3.4.1]

mkdir -p build/macos/SourcePackages/firebase_analytics-12.4.5 solve the issue but I shouldn't have to deal with creating folder myself for firebase

Reproducing the issue

flutter clean flutter pub get on macOS

Firebase Core version

4.12.1

Flutter Version

3.44.4

[SelaseKay]

Hi @stephane-archer, thanks for report. I'll take a look into this.

[SelaseKay]

Hi @stephane-archer, I'm unable to reproduce this issue. I believe the failing rsync might be coming from coming from Flutter's SwiftPM build tooling rather than firebase_analytics itself. Are you able to reproduce this with a newly created flutter project?

[stephane-archer]

Yes, I can reproduce this with a newly created Flutter project.

Environment:

• macOS 15.4.1, Intel
• Flutter 3.44.4 stable, revision ad70ec4617
• Dart 3.12.2
• Xcode 16.3
• Swift Package Manager enabled
• command -v rsync: /usr/local/bin/rsync
• rsync --version: 3.4.1

Minimal reproduction:

flutter create --platforms=macos flutterfire_18491_repro
cd flutterfire_18491_repro
flutter pub add firebase_analytics:12.4.5 firebase_core:4.12.1
flutter clean
flutter pub get
flutter pub add/flutter pub get fails with:
Failed to copy plugin firebase_analytics:

rsync: [Receiver] mkdir ".../build/macos/SourcePackages/firebase_analytics-12.4.5" failed: No such file or directory (2)
rsync error: error in file IO (code 11) at main.c(795) [Receiver=3.4.1]

I found that the differentiator is the rsync implementation selected through PATH.
This fails:
/usr/local/bin/rsync
rsync version 3.4.1
Running the same clean project with /usr/bin before /usr/local/bin succeeds:
PATH="/usr/bin:/bin:$PATH" flutter pub get
Creating only the parent directory also fixes it:
mkdir -p build/macos/SourcePackages
flutter pub get
So the full firebase_analytics-12.4.5 directory does not need to be created manually.
The Firebase Analytics Package.swift dependency on ../firebase_core triggers Flutter's _copyPluginAndUpdateManifest path. Flutter constructs the destination and invokes unqualified rsync, but does not create the destination parent first:
https://github.com/flutter/flutter/blob/ad70ec4617/packages/flutter_tools/lib/src/macos/swift_package_manager.dart#L316-L333
It therefore looks like a Flutter SwiftPM tooling compatibility issue with upstream/Homebrew rsync rather than an Analytics implementation problem. A portable fix would be for Flutter to recursively create build//SourcePackages before invoking rsync.

[SelaseKay]

Closing as this is tied to Flutter.