我正在开发一个使用本地数据库的flutter项目。对于本地数据库，我使用的是sqflite插件https://pub.dartlang.org/packages/sqflite。我的应用程序工作正常，没有安装sqflite。但是，只要我安装sqflite。它停止运行ios。我收到以下错误。
导入1错误生成。 ===使用CONFIGURATION调试PROJECT Runner的目标运行器调试===在/Users/user/Documents/DEVELOPMENT/Flutter_Dev/Flutter_project/FlutterDatabaseSQFLite-master/ios/Runner/AppDelegate.m:1：/ Users / user中包含的文件中/Documents/DEVELOPMENT/Flutter_Dev/Flutter_project/FlutterDatabaseSQFLite-master/ios/Runner/AppDelegate.h：2：9：致命错误：'Flutter / Flutter.h'文件未找到导入^ ~~~~~~~~~~ ~~~~~~~~生成1个错误。 /Users/user/Documents/DEVELOPMENT/Flutter_Dev/Flutter_project/FlutterDatabaseSQFLite-master/ios/Runner/main.m:2:9：致命错误：'Flutter / Flutter.h'文件未找到导入^ ~~~~~~ ~~~~~~~~~~~~生成1个错误。 ===构建TARGET PROJECT Runner的配置运行器配置调试=== ld：找不到文件：/Users/user/Library/Developer/Xcode/DerivedData/Runner-ctqhqjwcexxoquevqxydctpmagio/Build/Intermediates.noindex/Runner.build/Debug- iphonesimulator / Runner.build / Objects-normal / x86_64 / AppDelegate.o clang：错误：链接器命令失败，退出代码为1（使用-v查看调用）无法为模拟器构建应用程序。在iPhone 8 Plus上启动应用程序时出错。
。奇怪的是在这个错误之后，如果我创建了一个新的颤振项目，它会给我以下错误。
/Users/user/Documents/DEVELOPMENT/Flutter_Dev/Flutter_project/local_db/ios/Runner/AppDelegate.h：1：9：致命错误：'Flutter / Flutter.h'文件未找到导入^ ~~~~~~~~ ~~~~~~~~~~生成1个错误。 ===使用CONFIGURATION调试PROJECT Runner的TARGET Runner === /Users/user/Documents/DEVELOPMENT/Flutter_Dev/Flutter_project/local_db/ios/Runner/main.m:1:9：致命错误：'Flutter / Flutter。 h'文件未找到#import ^ ~~~~~~~~~~~~~~~~~~ 1生成错误。 ===使用CONFIGURATION调试PROJECT Runner的目标运行器调试===在/Users/user/Documents/DEVELOPMENT/Flutter_Dev/Flutter_project/local_db/ios/Runner/GeneratedPluginRegistrant.m:5中包含的文件：/ Users / user / Documents /DEVELOPMENT/Flutter_Dev/Flutter_project/local_db/ios/Runner/GeneratedPluginRegistrant.h:8:9：致命错误：找不到'Flutter / Flutter.h'文件#import ^ ~~~~~~~~~~~~~ ~~~~~生成1个错误。 ===构建TARGET PROJECT Runner的配置运行器配置调试=== ld：找不到文件：/Users/user/Library/Developer/Xcode/DerivedData/Runner-eqhuhphzvosrgvdilnpudqzvakju/Build/Intermediates.noindex/Runner.build/Debug- iphonesimulator / Runner.build / Objects-normal / x86_64 / AppDelegate.o clang：错误：链接器命令失败，退出代码为1（使用-v查看调用）无法为模拟器构建应用程序。在iPhone 8 Plus上启动应用程序时出错。
应用程序停止工作。这是flutter doctor命令的输出。
Doctor summary (to see all details, run flutter doctor -v):
[✓] Flutter (Channel master, v0.8.7-pre.6, on Mac OS X 10.14 18A384a, locale en-IN)
[!] Android toolchain - develop for Android devices (Android SDK 28.0.2)
! Some Android licenses not accepted. To resolve this, run: flutter doctor --android-licenses
[✓] iOS toolchain - develop for iOS devices (Xcode 9.3)
[✓] Android Studio (version 3.1)
✗ Flutter plugin not installed; this adds Flutter specific functionality.
✗ Dart plugin not installed; this adds Dart specific functionality.
[✓] VS Code (version 1.27.2)
[✓] Connected devices (1 available)
请帮帮我。提前致谢。
尝试将Flutter频道从Master更改为Beta
在终端中打开flutter目录并设置导出路径的类型
flutter channel beta