Flutter iOS编译报错：Swift编译器错误及文件缺失求助

错误现象 #

编译iOS应用时出现以下Swift编译器错误：

Swift Compiler Error (Xcode): Cannot call value of non-function type 'String?'
/Users/rabinacharya/.pub-cache/hosted/pub.dev/flutter_inappwebview-5.7.2+3/ios/Classes/MyCookieManager.swift:259:43

Swift Compiler Error (Xcode): Cannot call value of non-function type 'String?'
/Users/rabinacharya/.pub-cache/hosted/pub.dev/flutter_inappwebview-5.7.2+3/ios/Classes/MyCookieManager.swift:293:43

Swift Compiler Error (Xcode): Build input files cannot be found:
'/Users/rabinacharya/.pub-cache/hosted/pub.dev/shared_preferences_foundation-2.2.2/darwin/Classes/messages.g.swift',
'/Users/rabinacharya/.pub-cache/hosted/pub.dev/shared_preferences_foundation-2.2.2/darwin/Classes/SharedPreferencesPlugin.swift'

Swift Compiler Error (Xcode): Build input files cannot be found:
'/Users/rabinacharya/.pub-cache/hosted/pub.dev/path_provider_foundation-2.2.3/darwin/Classes/messages.g.swift',
'/Users/rabinacharya/.pub-cache/hosted/pub.dev/path_provider_foundation-2.2.3/darwin/Classes/PathProviderPlugin.swift'

Could not build the application for the simulator.
Error launching application on iPhone 11.

复现步骤 #

删除现有iOS工程后，执行命令 flutter create -i swift .，运行代码时触发上述错误，无法在iPhone 11模拟器启动应用。

解决方法 #

• 清理Flutter项目缓存与依赖

  1. 执行命令清理项目：flutter clean
  2. 删除项目根目录下的pubspec.lock文件
  3. 重新获取依赖：flutter pub get

• 重置CocoaPods依赖

  1. 进入iOS目录：cd ios
  2. 删除Podfile.lock和Pods文件夹：rm -rf Podfile.lock Pods
  3. 解除CocoaPods关联：pod deintegrate
  4. 重新安装Pods：pod install
  5. 返回项目根目录：cd ..

• 升级问题依赖包

  1. 打开项目根目录的pubspec.yaml文件，检查flutter_inappwebview、shared_preferences、path_provider的版本号
  2. 将这些依赖升级到最新稳定版本（旧版本可能与当前Xcode/Swift版本不兼容）
  3. 执行命令升级依赖：flutter pub upgrade

• 重新生成iOS工程文件
  如果上述步骤无效，先删除项目根目录下的ios文件夹，再重新执行：flutter create -i swift .

• Xcode手动清理构建

  1. 用Xcode打开项目的ios/Runner.xcworkspace文件
  2. 按下Cmd+Shift+K清理构建文件夹
  3. 按下Cmd+B重新构建项目

内容的提问来源于stack exchange，提问作者Rabin Acharya