macOS build fails with Module 'FlutterMacOS' not found

[priyankgandhi0]

Description

Building the Flutter macOS application fails during compilation. The error indicates that the FlutterMacOS module cannot be found by multiple plugins during the CocoaPods/Xcode build process.

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Environment

• Flutter: 3.35.7 (stable)
• Dart SDK: ^3.6.0
• macOS: 15.6.1 (darwin-x64)
• Xcode: 26.1
• Android SDK: 36.1.0
• IDE: Android Studio 2025.2, VS Code 1.107.0

flutter doctor reports no issues.

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Project Details

• Project name: stream_g1

• Platform: macOS

• Build mode: Debug

• Plugins involved (partial list):

  • video_player
  • video_player_avfoundation
  • window_manager

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Steps to Reproduce

1. Run flutter pub get
2. Run flutter run -d macos
3. Build starts and fails during macOS compilation

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Actual Result

The macOS build fails with multiple errors stating that the FlutterMacOS module and headers cannot be found.

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Expected Result

The macOS application should build successfully.

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Error Logs

error: Module 'FlutterMacOS' not found
error: 'FlutterMacOS/FlutterMacOS.h' file not found
error: Unable to find module dependency: 'FlutterMacOS'

Full Error Output (excerpt)

/video_player_avfoundation/.../FVPViewProvider.h:7:9: error: Module 'FlutterMacOS' not found
/video_player_avfoundation/.../FVPVideoPlayerPlugin.h:6:9: error: 'FlutterMacOS/FlutterMacOS.h' file not found
/window_manager/.../WindowManager.swift:2:8: error: Unable to find module dependency: 'FlutterMacOS'
import FlutterMacOS

Build terminates with:

** BUILD FAILED **
Error: Build process failed