【发布时间】：2021-02-26 16:50:29
【问题描述】：
由于标头问题，Flutter iOS 构建失败。
我按照 flutter.dev 中提到的简单步骤在 iOS 模拟器上启动应用程序。我在 Android/Web 上使用 Flutter 没有任何问题，但这是我第一次尝试在 iOS 上运行它。
错误摘要 - （完整错误：https://gist.github.com/mannprerak2/520f8a749431a50b8472783c71d67dda）
...
#import "Headers/CoreMedia.h"
^
/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator14.4.sdk/System/Library/Frameworks/CoreMedia.framework/Headers/CoreMedia.h:15:10: note: in file included from /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator14.4.sdk/System/Library/Frameworks/CoreMedia.framework/Headers/CoreMedia.h:15:
#include <CoreMedia/CMFormatDescription.h>
^
/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator14.4.sdk/System/Library/Frameworks/CoreMedia.framework/Headers/CMFormatDescription.h:26:10: error: could not build module 'CoreAudio'
#include <CoreAudio/CoreAudioTypes.h>
^
/Users/prerakmann/development/test_ios/ios/Runner/Runner-Bridging-Header.h:1:9: note: in file included from /Users/prerakmann/development/test_ios/ios/Runner/Runner-Bridging-Header.h:1:
#import "GeneratedPluginRegistrant.h"
^
/Users/prerakmann/development/test_ios/ios/Runner/GeneratedPluginRegistrant.h:8:9: error: could not build module 'Flutter'
#import <Flutter/Flutter.h>
^
192 errors generated.
<unknown>:0: error: failed to emit precompiled header '/Users/prerakmann/Library/Developer/Xcode/DerivedData/Runner-ahrcvwuwhqnepxdcpfsagztcuwrr/Build/Intermediates.noindex/PrecompiledHeaders/Runner-Bridging-Header-swift_1QEOMJ6SUMBGB-clang_3BG5Q8JCTPBV5.pch' for bridging header '/Users/prerakmann/development/test_ios/ios/Runner/Runner-Bridging-Header.h'
384 errors generated.
<unknown>:0: error: generate-pch command failed with exit code 1 (use -v to see invocation)
note: Using new build system
note: Building targets in parallel
note: Planning build
note: Constructing build description
...
系统：Macbook Pro 13 (2020)、BigSur 11.2.1、Xcode 12.4
Flutter：在最新的稳定版和测试版上试用。
模拟器：在 iOS 8、iOS 12 上试用。
重现步骤：创建一个新的 Flutter 应用，运行它。
【问题讨论】：
标签： ios xcode flutter dart xcode12