Flutter应用程序更新Flutter后未启动

Question

请帮帮我！该应用程序接近完成，因为我确实运行了flutter upgrade来解决一个bug，所以我必须运行：flutter clean flutter channel master flutter upgrade flutter run

现在它不再启动了，下面的代码出现了…

Launching lib/main.dart on iPhone 12 Pro Max in debug mode...
Running Xcode build...
Xcode build done.                                           42,0s
Failed to build iOS app
Error output from Xcode build:
↳
    ** BUILD FAILED **


Xcode's output:
↳
    In file included from /Users/patrickmeyer/Developer/flutter/.pub-cache/hosted/pub.dartlang.org/shared_preferences-0.5.12+4/ios/Classes/FLTSharedPreferencesPlugin.m:5:
    /Users/patrickmeyer/Developer/flutter/.pub-cache/hosted/pub.dartlang.org/shared_preferences-0.5.12+4/ios/Classes/FLTSharedPreferencesPlugin.h:5:9: fatal error: 'Flutter/Flutter.h' file not found
    #import <Flutter/Flutter.h>
            ^~~~~~~~~~~~~~~~~~~
    1 error generated.
    note: Using new build system
    note: Building targets in parallel
    note: Planning build
    note: Constructing build description
    warning: The iOS Simulator deployment target 'IPHONEOS_DEPLOYMENT_TARGET' is set to 8.0, but the range of supported deployment target versions is 9.0 to 14.3.99. (in target 'share' from project 'Pods')
    warning: The iOS Simulator deployment target 'IPHONEOS_DEPLOYMENT_TARGET' is set to 8.0, but the range of supported deployment target versions is 9.0 to 14.3.99. (in target 'GoogleDataTransport' from project 'Pods')
    warning: The iOS Simulator deployment target 'IPHONEOS_DEPLOYMENT_TARGET' is set to 8.0, but the range of supported deployment target versions is 9.0 to 14.3.99. (in target 'shared_preferences' from project 'Pods')
    warning: The iOS Simulator deployment target 'IPHONEOS_DEPLOYMENT_TARGET' is set to 8.0, but the range of supported deployment target versions is 9.0 to 14.3.99. (in target 'Firebase' from project 'Pods')
    warning: The iOS Simulator deployment target 'IPHONEOS_DEPLOYMENT_TARGET' is set to 8.0, but the range of supported deployment target versions is 9.0 to 14.3.99. (in target 'GoogleUtilities' from project 'Pods')
    warning: The iOS Simulator deployment target 'IPHONEOS_DEPLOYMENT_TARGET' is set to 8.0, but the range of supported deployment target versions is 9.0 to 14.3.99. (in target 'GoogleAppMeasurement' from project 'Pods')
    warning: The iOS Simulator deployment target 'IPHONEOS_DEPLOYMENT_TARGET' is set to 8.0, but the range of supported deployment target versions is 9.0 to 14.3.99. (in target 'firebase_core' from project 'Pods')
    warning: The iOS Simulator deployment target 'IPHONEOS_DEPLOYMENT_TARGET' is set to 8.0, but the range of supported deployment target versions is 9.0 to 14.3.99. (in target 'FirebaseCore' from project 'Pods')
    warning: The iOS Simulator deployment target 'IPHONEOS_DEPLOYMENT_TARGET' is set to 8.0, but the range of supported deployment target versions is 9.0 to 14.3.99. (in target 'FirebaseCoreDiagnostics' from project 'Pods')
    warning: The iOS Simulator deployment target 'IPHONEOS_DEPLOYMENT_TARGET' is set to 8.0, but the range of supported deployment target versions is 9.0 to 14.3.99. (in target 'firebase_admob' from project 'Pods')
    warning: The iOS Simulator deployment target 'IPHONEOS_DEPLOYMENT_TARGET' is set to 4.3, but the range of supported deployment target versions is 9.0 to 14.3.99. (in target 'nanopb' from project 'Pods')
    warning: The iOS Simulator deployment target 'IPHONEOS_DEPLOYMENT_TARGET' is set to 8.0, but the range of supported deployment target versions is 9.0 to 14.3.99. (in target 'Flutter' from project 'Pods')

Could not build the application for the simulator.
Error launching application on iPhone 12 Pro Max.

[]Flutter（通道稳定，1.22.5，在Mac OS X 10.15.7 19H114 darwin-x64，现场显示）•Flutter版本1.22.5在/users/PatrickMeyer/Developer/Flutter•框架修订版7891006299（13天前）2020-12-10 11:54:40-0800•引擎修订版ae90085a84•Dart版本2.10.4

[]Android toolchain-为Android设备开发（Android SDK版本29.0.3）•Android SDK，地址为/Users/PatrickMeyer/Library/Android/SDK•平台android-29,build-tools 29.0.3•Java二进制地址为：/Applications/Android Studio.app/Contents/JRE/JDK/Contents/Home/Bin/Java•Java版本OpenJDK运行时环境（build 1.8.0_242-Release-1644-B3-6915495)•接受所有Android许可。

[]Xcode-为iOS和macOS开发（Xcode 12.3)•Xcode at/applications/Xcode.app/contents/developer•Xcode 12.3,Build version 12C33•CocoaPods version 1.10.0

[]Android Studio（4.1版）•Android Studio at/Applications/Android Studio.app/Contents•已安装Flutter插件•Dart插件201.9306版•Java版本OpenJDK运行时环境（构建1.8.0_242-Release-1644-b3-6915495)

[]已连接设备（1个可用）•iPhone 12 Pro Max（移动）•11ACA273-A0C3-405D-993A-A9AF9057887C•ios•com.apple.coreSimulator.Simruntime.ios-14-3（模拟器）

•未发现任何问题！

Answer 1

在pod文件中运行pod UPDATE