问颤振插件配置问题

EN

我正在做一个使用本地数据库的颤振项目。对于本地数据库，我使用的是sqflite插件https://pub.dartlang.org/packages/sqflite。我的应用程序在没有安装sqflite的情况下运行良好。但是，一旦我安装了sqflite。它停止运行到ios。我收到以下错误。

生成导入1错误。/Users/user/Documents/DEVELOPMENT/Flutter_Dev/Flutter_project/FlutterDatabaseSQFLite-master/ios/Runner/AppDelegate.m:1: /Users/user/Documents/DEVELOPMENT/Flutter_Dev/Flutter_project/FlutterDatabaseSQFLite-master/ios/Runner/AppDelegate.h:2:9:致命错误中包含的带有配置调试===的项目运行程序的===构建目标运行程序：‘===/Flutter.h’文件未找到导入^~1错误生成。/Users/user/Documents/DEVELOPMENT/Flutter_Dev/Flutter_project/FlutterDatabaseSQFLite-master/ios/Runner/main.m:2:9:致命错误:未找到导入^~1错误生成的‘颤振/Flutter.h’文件配置调试的项目运行程序的===构建目标运行程序=== ld：===未找到：=== clang：===：linker命令失败，退出代码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，如果我创建一个新的颤振项目，它会给我以下的错误。

/Users/user/Documents/DEVELOPMENT/Flutter_Dev/Flutter_project/local_db/ios/Runner/AppDelegate.h:1:9:致命错误:未找到导入^~1错误生成的‘颤振/Flutter.h’文件具有配置调试/Users/user/Documents/DEVELOPMENT/Flutter_Dev/Flutter_project/local_db/ios/Runner/main.m:1:9：===错误的项目运行程序构建目标运行程序：‘=== /Flutter.h’文件未找到#导入^~1错误生成。/Users/user/Documents/DEVELOPMENT/Flutter_Dev/Flutter_project/local_db/ios/Runner/GeneratedPluginRegistrant.m:5: /Users/user/Documents/DEVELOPMENT/Flutter_Dev/Flutter_project/local_db/ios/Runner/GeneratedPluginRegistrant.h:8:9:致命错误中包含的配置调试===的项目运行程序的===构建目标运行程序：‘===/Flutter.h’文件未找到#import ^~1生成的错误。配置调试的项目运行程序的===构建目标运行程序=== ld：===未找到：=== clang：===：linker命令失败，退出代码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。

应用程序就停止工作了。下面是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)

请帮我这个忙。提前谢谢。