启动Flutter项目Xcode报错，image_provider.dart:670:8: Error

Question

问题描述

启动Flutter项目Xcode报错

Launching lib/main.dart on iPhone 11 Pro in debug mode...
lib/main.dart:1
Xcode build done.                                           29.5s
Failed to build iOS app
Error output from Xcode build:
↳
    ** BUILD FAILED **
Xcode's output:
↳
    ../../../Development/flutter/packages/flutter/lib/src/painting/image_provider.dart:670:8: Error: Getter not found: 'overrethrow'.
          @overrethrow;
           ^^^^^^^^^^^
    ../../../Development/flutter/packages/flutter/lib/src/painting/image_provider.dart:670:8: Error: This can't be used as metadata; metadata should be a reference to a compile-time constant variable, or a call to a constant constructor.
          @overrethrow;
           ^
    ../../../Development/flutter/packages/flutter/lib/src/painting/image_provider.dart:670:19: Error: Expected an identifier, but got ';'.
    Try inserting an identifier before ';'.
          @overrethrow;
                      ^
    Command PhaseScriptExecution failed with a nonzero exit code
    note: Using new build system
    note: Building targets in parallel
    note: Planning build
    note: Analyzing workspace
    note: Constructing build description
    note: Build preparation complete
    /Users/zhangbing/Downloads/code/bizhi_app/ios/Pods/Pods.xcodeproj: 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 14.5.99. (in target 'Flutter' from project 'Pods')
Could not build the application for the simulator.
Error launching application on iPhone 11 Pro.
Exited (sigterm)

问题出现的环境背景及自己尝试过哪些方法

flutter版本: 2.0.4
编辑器：VS Code

尝试过 flutter clean 命令，没有解决。

stackoverflow.com上有个类似的问题：imageprovider-bug-flutter

Answer 1

本地打开/Development/flutter/packages/flutter/lib/src/painting/image_provider.dart，然后删除 @overrethrow;这一句就可以了

Answer 2

检查下Flutter代码是不是有问题，Xcode编译已经给你提示了