FirebaseAnalytics与flutter-unity-view-widget集成iOS构建失败求助

报错信息 #

ld: warning: directory not found for option '-F/Users/cmj/Library/Developer/Xcode/DerivedData/Runner-axwkfpqujhueongqokkumujmrnsc/Build/Products/Debug-iphoneos/XCFrameworkIntermediates/FirebaseAnalytics/AdIdSupport'
ld: warning: directory not found for option '-F/Users/cmj/Library/Developer/Xcode/DerivedData/Runner-axwkfpqujhueongqokkumujmrnsc/Build/Products/Debug-iphoneos/XCFrameworkIntermediates/GoogleAppMeasurement/AdIdSupport'
ld: warning: directory not found for option '-F/Users/cmj/Library/Developer/Xcode/DerivedData/Runner-axwkfpqujhueongqokkumujmrnsc/Build/Products/Debug-iphoneos/XCFrameworkIntermediates/GoogleAppMeasurement/WithoutAdIdSupport'
ld: framework not found FirebaseAnalytics
clang: error: linker command failed with exit code 1 (use -v to see invocation)

复现步骤 #

• 创建空白Unity项目
• 配置flutter-unity-view-widget
• 配置FirebaseAnalytics

当前状态 #

• Unity单独导出iOS（Release）无报错
• 单独在Unity中集成FirebaseAnalytics可正常构建iOS，Xcode显示12个依赖（含FirebaseAnalytics）
• 同时集成两者时，Xcode仅显示8个依赖，执行flutter build ios或在Xcode中构建UnityFramework均失败

解决思路 #

1. 手动补全UnityFramework依赖
   打开Xcode项目，选中UnityFramework目标，进入Build Phases > Link Binary With Libraries，点击+添加FirebaseAnalytics、GoogleAppMeasurement等缺失的框架。

2. 清理缓存后重新构建

   • 删除Xcode DerivedData目录：

     rm -rf ~/Library/Developer/Xcode/DerivedData/Runner-axwkfpqujhueongqokkumujmrnsc
     

   • 执行flutter clean，再重新运行flutter build ios。

3. 统一Pod依赖版本
   在Flutter项目的Podfile中手动添加FirebaseAnalytics依赖，确保版本与Unity中使用的Firebase SDK一致：

   pod 'Firebase/Analytics', '替换为Unity中Firebase的版本号'
   

   添加后执行pod install更新依赖。

4. 验证配置文件引用
   确保Unity导出的GoogleService-Info.plist同时被UnityFramework和Runner目标引用：

   • 在Xcode中选中该文件，检查右侧Target Membership，确保两个目标都勾选。

5. 禁用Ad ID收集
   在Unity的Firebase设置中取消勾选Enable Ad ID collection，重新导出iOS项目后再尝试构建，避免AdIdSupport相关路径报错。

内容的提问来源于stack exchange，提问作者cmj