更新颤振后面临构建问题答案

【问题标题】：Facing build issue after updating the flutter更新颤振后面临构建问题
【发布时间】：2020-12-24 08:06:41
【问题描述】：

我在为 iOS 设备反复构建时出现此错误，我尝试了很多方法但尚未解决。 Flutter Firebase 项目出现此问题，并且该版本被卡住了 4 天以上。我需要更新指南以尽快解决此问题

我已经更新了 Flutter，当前版本是 Flutter 1.20.3 和 dart 2.9.2

2020-09-05 12:53:42.052 xcodebuild[72084:478348] 警告：文件参考 “Objective-C/TOCropViewController/Models/TOActivityCroppedImageProvider.h” 是会员多个组（“TOCropViewController”和“TOCropViewController”）；这表明项目格式不正确。只有将保留其中一个组的成员身份（但目标成员资格不受影响）。如果您想在多个组中引用同一文件，请添加另一个引用相同的路径。 2020-09-05 12:53:42.052 xcodebuild[72084:478348] 警告：文件参考 “Objective-C/TOCropViewController/Views/TOCropOverlayView.h”是一个多个成员组（“TOCropViewController”和“TOCropViewController”）；这表明项目格式不正确。只有其中之一的成员组将被保留（但目标成员资格将不受影响）。如果您想在多个组中引用同一文件，请添加另一个引用相同的路径。 2020-09-05 12:53:42.052 xcodebuild[72084:478348] 警告：文件参考 “目标-C/TOCropViewController/Models/TOCroppedImageAttributes.h” 是成员多个组（“TOCropViewController”和“TOCropViewController”）；这表明项目格式不正确。只有其中一个组的成员资格将被保留（但目标成员资格将不受影响）。如果您想在多个组中引用同一文件，请添加另一个引用相同的路径。 2020-09-05 12:53:42.052 xcodebuild[72084:478348] 警告：文件参考 “Objective-C/TOCropViewController/Views/TOCropScrollView.h”是一个多个成员组（“TOCropViewController”和“TOCropViewController”）；这表明项目格式不正确。只有其中之一的成员组将被保留（但目标成员资格将不受影响）。如果您想在多个组中引用同一文件，请添加另一个引用相同的路径。 2020-09-05 12:53:42.052 xcodebuild[72084:478348] 警告：文件参考 “Objective-C/TOCropViewController/Views/TOCropToolbar.h”是成员多组的（“TOCropViewController”和“TOCropViewController”）；这表明项目格式不正确。只有其中之一的成员组将被保留（但成员资格目标不受影响）。如果您想在多个组中引用同一文件，请添加对同一文件的另一个引用小路。 2020-09-05 12:53:42.052 xcodebuild[72084:478348] 警告：文件参考 “Objective-C/TOCropViewController/Views/TOCropView.h”是多组（“TOCropViewController”和“TOCropViewController”）；这表明项目格式不正确。只有其中之一的成员组将被保留（但成员资格目标不受影响）。如果您想在多个组中引用同一文件，请添加对同一文件的另一个引用小路。 2020-09-05 12:53:42.052 xcodebuild[72084:478348] 警告：文件参考 “Objective-C/TOCropViewController/TOCropViewController.h”是一个成员多组的（“TOCropViewController”和“TOCropViewController”）；这表明项目格式不正确。只有其中之一的成员组将被保留（但成员资格目标不受影响）。如果您想在多个组中引用同一文件，请添加对同一文件的另一个引用小路。 2020-09-05 12:53:42.052 xcodebuild[72084:478348] 警告：文件参考 “目标-C/TOCropViewController/Models/TOCropViewControllerTransitioning.h” 是一个多个组的成员（“TOCropViewController”和“TOCropViewController”）；这表明项目格式不正确。只有其中一个组的成员资格将是保留（但目标成员资格不受影响）。如果您想在多个组中引用同一文件，请添加对同一路径的另一个引用。 ** 构建失败 **

Xcode 的输出：↳ 在 /Users/vickky/Documents/flutter/.pub-cache/hosted/pub.dartlang.org/fluttertoast-7.0.4/ios/Classes/UIView+Toast.m:26 包含的文件中： /Users/vickky/Documents/flutter/.pub-cache/hosted/pub.dartlang.org/fluttertoast-7.0.4/ios/Classes/UIView+Toast.h:328:19：警告：传递给“@param”的空段落命令 [-Wdocumentation] @param 共享样式 ~~~~~~~~~~~~~~~~~^ /Users/vickky/Documents/flutter/.pub-cache/hosted/pub.dartlang.org/fluttertoast-7.0.4/ios/Classes/UIView+Toast.h:343:25：警告：传递给“@param”的空段落命令 [-Wdocumentation] @param allowTapToDismiss ~~~~~~~~~~~~~~~~~~~~~~~~~~^ /Users/vickky/Documents/flutter/.pub-cache/hosted/pub.dartlang.org/fluttertoast-7.0.4/ios/Classes/UIView+Toast.h:343:9: 警告：未找到参数“allowTapToDismiss” 在函数声明中 [-Wdocumentation] @param allowTapToDismiss ^~~~~~~~~~~~~~~~~ /Users/vickky/Documents/flutter/.pub-cache/hosted/pub.dartlang.org/fluttertoast-7.0.4/ios/Classes/UIView+Toast.h:343:9：注意：您的意思是“tapToDismissEnabled”吗？ @param allowTapToDismiss ^~~~~~~~~~~~~~~~~ tapToDismissEnabled /Users/vickky/Documents/flutter/.pub-cache/hosted/pub.dartlang.org/fluttertoast-7.0.4/ios/Classes/UIView+Toast.h:362:20：警告：传递给“@param”的空段落命令 [-Wdocumentation] @param queueEnabled ~~~~~~~~~~~~~~~~~~^ 生成 4 个警告。在 /Users/vickky/Documents/flutter/.pub-cache/hosted/pub.dartlang.org/fluttertoast-7.0.4/ios/Classes/UIView+Toast.m:26 包含的文件中： /Users/vickky/Documents/flutter/.pub-cache/hosted/pub.dartlang.org/fluttertoast-7.0.4/ios/Classes/UIView+Toast.h:328:19：警告：传递给“@param”的空段落命令 [-Wdocumentation] @param 共享样式 ~~~~~~~~~~~~~~~~~^ /Users/vickky/Documents/flutter/.pub-cache/hosted/pub.dartlang.org/fluttertoast-7.0.4/ios/Classes/UIView+Toast.h:343:25：警告：传递给“@param”的空段落命令 [-Wdocumentation] @param allowTapToDismiss ~~~~~~~~~~~~~~~~~~~~~~~~~~^ /Users/vickky/Documents/flutter/.pub-cache/hosted/pub.dartlang.org/fluttertoast-7.0.4/ios/Classes/UIView+Toast.h:343:9: 警告：未找到参数“allowTapToDismiss” 在函数声明中 [-Wdocumentation] @param allowTapToDismiss ^~~~~~~~~~~~~~~~~ /Users/vickky/Documents/flutter/.pub-cache/hosted/pub.dartlang.org/fluttertoast-7.0.4/ios/Classes/UIView+Toast.h:343:9：注意：您的意思是“tapToDismissEnabled”吗？ @param allowTapToDismiss ^~~~~~~~~~~~~~~~~ tapToDismissEnabled /Users/vickky/Documents/flutter/.pub-cache/hosted/pub.dartlang.org/fluttertoast-7.0.4/ios/Classes/UIView+Toast.h:362:20：警告：传递给“@param”的空段落命令 [-Wdocumentation] @param queueEnabled ~~~~~~~~~~~~~~~~~~^ 生成 4 个警告。在 /Users/vickky/Documents/flutter/.pub-cache/hosted/pub.dartlang.org/fluttertoast-7.0.4/ios/Classes/FluttertoastPlugin.m:2 包含的文件中： /Users/vickky/Documents/flutter/.pub-cache/hosted/pub.dartlang.org/fluttertoast-7.0.4/ios/Classes/UIView+Toast.h:328:19：警告：传递给“@param”的空段落命令 [-Wdocumentation] @param 共享样式 ~~~~~~~~~~~~~~~~~^ /Users/vickky/Documents/flutter/.pub-cache/hosted/pub.dartlang.org/fluttertoast-7.0.4/ios/Classes/UIView+Toast.h:343:25：警告：传递给“@param”的空段落命令 [-Wdocumentation] @param allowTapToDismiss ~~~~~~~~~~~~~~~~~~~~~~~~~~^ /Users/vickky/Documents/flutter/.pub-cache/hosted/pub.dartlang.org/fluttertoast-7.0.4/ios/Classes/UIView+Toast.h:343:9: 警告：未找到参数“allowTapToDismiss” 在函数声明中 [-Wdocumentation] @param allowTapToDismiss ^~~~~~~~~~~~~~~~~ /Users/vickky/Documents/flutter/.pub-cache/hosted/pub.dartlang.org/fluttertoast-7.0.4/ios/Classes/UIView+Toast.h:343:9: 注意：您的意思是“tapToDismissEnabled”吗？ @param allowTapToDismiss ^~~~~~~~~~~~~~~~~ tapToDismissEnabled /Users/vickky/Documents/flutter/.pub-cache/hosted/pub.dartlang.org/fluttertoast-7.0.4/ios/Classes/UIView+Toast.h:362:20：警告：传递给“@param”的空段落命令 [-Wdocumentation] @param queueEnabled ~~~~~~~~~~~~~~~~~~^ /Users/vickky/Documents/flutter/.pub-cache/hosted/pub.dartlang.org/fluttertoast-7.0.4/ios/Classes/FluttertoastPlugin.m:20:23：警告：未使用的变量“viewController” [-Wunused-变量] UIViewController *viewController = ^ /Users/vickky/Documents/flutter/.pub-cache/hosted/pub.dartlang.org/fluttertoast-7.0.4/ios/Classes/FluttertoastPlugin.m:99:21：警告：未使用的变量“topPadding” [-Wunused-变量] CGFloat topPadding = window.safeAreaInsets.top; ^ /Users/vickky/Documents/flutter/.pub-cache/hosted/pub.dartlang.org/fluttertoast-7.0.4/ios/Classes/FluttertoastPlugin.m:100:21：警告：未使用的变量“bottomPadding” [-Wunused-变量] CGFloat bottomPadding = window.safeAreaInsets.bottom; ^ /Users/vickky/Documents/flutter/.pub-cache/hosted/pub.dartlang.org/fluttertoast-7.0.4/ios/Classes/FluttertoastPlugin.m:73:19：警告：未使用的变量“大小” [-Wunused-变量] NSNumber *size = call.arguments[@"size"]; ^ 生成 8 个警告。在 /Users/vickky/Documents/flutter/.pub-cache/hosted/pub.dartlang.org/fluttertoast-7.0.4/ios/Classes/FluttertoastPlugin.m:2 包含的文件中： /Users/vickky/Documents/flutter/.pub-cache/hosted/pub.dartlang.org/fluttertoast-7.0.4/ios/Classes/UIView+Toast.h:328:19：警告：传递给“@param”的空段落命令 [-Wdocumentation] @param 共享样式 ~~~~~~~~~~~~~~~~~^ /Users/vickky/Documents/flutter/.pub-cache/hosted/pub.dartlang.org/fluttertoast-7.0.4/ios/Classes/UIView+Toast.h:343:25：警告：传递给“@param”的空段落命令 [-Wdocumentation] @param allowTapToDismiss ~~~~~~~~~~~~~~~~~~~~~~~~~~^ /Users/vickky/Documents/flutter/.pub-cache/hosted/pub.dartlang.org/fluttertoast-7.0.4/ios/Classes/UIView+Toast.h:343:9：警告：未找到参数“allowTapToDismiss” 在函数声明中 [-Wdocumentation] @param allowTapToDismiss ^~~~~~~~~~~~~~~~~ /Users/vickky/Documents/flutter/.pub-cache/hosted/pub.dartlang.org/fluttertoast-7.0.4/ios/Classes/UIView+Toast.h:343:9：注意：您的意思是“tapToDismissEnabled”吗？ @param allowTapToDismiss ^~~~~~~~~~~~~~~~~ tapToDismissEnabled /Users/vickky/Documents/flutter/.pub-cache/hosted/pub.dartlang.org/fluttertoast-7.0.4/ios/Classes/UIView+Toast.h:362:20：警告：传递给“@param”的空段落命令 [-Wdocumentation] @param queueEnabled ~~~~~~~~~~~~~~~~~~^ /Users/vickky/Documents/flutter/.pub-cache/hosted/pub.dartlang.org/fluttertoast-7.0.4/ios/Classes/FluttertoastPlugin.m:20:23：警告：未使用的变量“viewController” [-Wunused-变量] UIViewController *viewController = ^ /Users/vickky/Documents/flutter/.pub-cache/hosted/pub.dartlang.org/fluttertoast-7.0.4/ios/Classes/FluttertoastPlugin.m:99:21：警告：未使用的变量“topPadding” [-Wunused-变量] CGFloat topPadding = window.safeAreaInsets.top; ^ /Users/vickky/Documents/flutter/.pub-cache/hosted/pub.dartlang.org/fluttertoast-7.0.4/ios/Classes/FluttertoastPlugin.m:100:21：警告：未使用的变量“bottomPadding” [-Wunused-变量] CGFloat bottomPadding = window.safeAreaInsets.bottom; ^ /Users/vickky/Documents/flutter/.pub-cache/hosted/pub.dartlang.org/fluttertoast-7.0.4/ios/Classes/FluttertoastPlugin.m:73:19：警告：未使用的变量“大小” [-Wunused-变量] NSNumber *size = call.arguments[@"size"]; ^ 生成 8 个警告。生成 6 个警告。 /Users/vickky/Documents/flutter/.pub-cache/hosted/pub.dartlang.org/firebase_messaging-6.0.16/ios/Classes/FLTFirebaseMessagingPlugin.m:195:43：警告： 'FIRMessagingRemoteMessage' 已弃用：FCM 直接通道已弃用，请使用 APNs 进行下游消息处理。 [-Wdeprecated-declarations] - (void)applicationReceivedRemoteMessage:(FIRMessagingRemoteMessage *)远程消息{ ^ 在从 /Users/vickky/Documents/project1/ios/Pods/Headers/Public/Firebase/Firebase.h:72 导入的模块“FirebaseMessaging”中： /Users/vickky/Documents/project1/ios/Pods/FirebaseMessaging/FirebaseMessaging/Sources/Public/FIRMessaging.h:219:1：注意：“FIRMessagingRemoteMessage”已明确此处标记为弃用 __deprecated_msg( ^ 在从 /Users/vickky/Documents/project1/ios/Pods/Target Support 导入的模块“UIKit”中文件/firebase_messaging/firebase_messaging-prefix.pch:2：在从导入的模块“Foundation”中 /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS13.5.sdk/System/Library/Frameworks/UIKit.framework/Headers/UIKit.h:8：在从导入的模块“CoreFoundation”中 /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS13.5.sdk/System/Library/Frameworks/Foundation.framework/Headers/Foundation.h :6: 在从导入的模块“达尔文”中 /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS13.5.sdk/System/Library/Frameworks/CoreFoundation.framework/Headers/CoreFoun 日期.h:16: /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS13.5.sdk/usr/include/sys/cdefs.h:191:48：注意：从宏扩展 '__deprecated_msg' #define __deprecated_msg(_msg) 属性((已弃用(_msg))) ^ /Users/vickky/Documents/flutter/.pub-cache/hosted/pub.dartlang.org/firebase_messaging-6.0.16/ios/Classes/FLTFirebaseMessagingPlugin.m:307:24：警告： 'FIRMessagingRemoteMessage' 已弃用：FCM 直接通道已弃用，请使用 APNs 进行下游消息处理。 [-Wdeprecated-declarations] didReceiveMessage:(FIRMessagingRemoteMessage *)remoteMessage { ^ 在从 /Users/vickky/Documents/project1/ios/Pods/Headers/Public/Firebase/Firebase.h:72 导入的模块“FirebaseMessaging”中： /Users/vickky/Documents/project1/ios/Pods/FirebaseMessaging/FirebaseMessaging/Sources/Public/FIRMessaging.h:219:1：注意：“FIRMessagingRemoteMessage”已明确此处标记为弃用 __deprecated_msg( ^ 在从 /Users/vickky/Documents/project1/ios/Pods/Target Support 导入的模块“UIKit”中文件/firebase_messaging/firebase_messaging-prefix.pch:2：在从导入的模块“Foundation”中 /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS13.5.sdk/System/Library/Frameworks/UIKit.framework/Headers/UIKit.h:8：在从导入的模块“CoreFoundation”中 /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS13.5.sdk/System/Library/Frameworks/Foundation.framework/Headers/Foundation.h :6: 在从导入的模块“达尔文”中 /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS13.5.sdk/System/Library/Frameworks/CoreFoundation.framework/Headers/CoreFoun 日期.h:16: /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS13.5.sdk/usr/include/sys/cdefs.h:191:48：注意：从宏扩展 '__deprecated_msg' #define __deprecated_msg(_msg) 属性((已弃用(_msg))) ^ /Users/vickky/Documents/flutter/.pub-cache/hosted/pub.dartlang.org/firebase_messaging-6.0.16/ios/Classes/FLTFirebaseMessagingPlugin.m:141:30：警告： 'shouldEstablishDirectChannel' is deprecated: FCM direct channel is deprecated, please use APNs channel for downstream message 送货。 [-Wdeprecated-declarations] [FIRMessaging 消息].shouldEstablishDirectChannel = true; ^ 在从 /Users/vickky/Documents/project1/ios/Pods/Headers/Public/Firebase/Firebase.h:72 导入的模块“FirebaseMessaging”中： /Users/vickky/Documents/project1/ios/Pods/FirebaseMessaging/FirebaseMessaging/Sources/Public/FIRMessaging.h:283:56：注意：“shouldEstablishDirectChannel”已经此处明确标记为弃用 @property(nonatomic) BOOL shouldEstablishDirectChannel DEPRECATED_MSG_ATTRIBUTE( ^ 在从 /Users/vickky/Documents/project1/ios/Pods/Target Support 导入的模块“UIKit”中文件/firebase_messaging/firebase_messaging-prefix.pch:2：在从导入的模块“Foundation”中 /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS13.5.sdk/System/Library/Frameworks/UIKit.framework/Headers/UIKit.h:8：在从导入的模块“CoreFoundation”中 /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS13.5.sdk/System/Library/Frameworks/Foundation.framework/Headers/Foundation.h :6: 在从导入的模块“达尔文”中 /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS13.5.sdk/System/Library/Frameworks/CoreFoundation.framework/Headers/CoreFoun 日期.h:16: /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS13.5.sdk/usr/include/AvailabilityMacros.h:182:64：注意：从宏扩展 'DEPRECATED_MSG_ATTRIBUTE' #define DEPRECATED_MSG_ATTRIBUTE(s) 属性（（已弃用）） ^ /Users/vickky/Documents/flutter/.pub-cache/hosted/pub.dartlang.org/firebase_messaging-6.0.16/ios/Classes/FLTFirebaseMessagingPlugin.m:196:52：警告：“appData”是已弃用 [-Wdeprecated-declarations] [self didReceiveRemoteNotification:remoteMessage.appData]; ^ 在从 /Users/vickky/Documents/project1/ios/Pods/Headers/Public/Firebase/Firebase.h:72 导入的模块“FirebaseMessaging”中： /Users/vickky/Documents/project1/ios/Pods/FirebaseMessaging/FirebaseMessaging/Sources/Public/FIRMessaging.h:226:62：注意：“appData”已被明确标记为弃用这里 @property(nonatomic, readonly, strong) NSDictionary *appData DEPRECATED_ATTRIBUTE; ^ 在从 /Users/vickky/Documents/project1/ios/Pods/Target Support 导入的模块“UIKit”中文件/firebase_messaging/firebase_messaging-prefix.pch:2：在从导入的模块“Foundation”中 /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS13.5.sdk/System/Library/Frameworks/UIKit.framework/Headers/UIKit.h:8：在从导入的模块“CoreFoundation”中 /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS13.5.sdk/System/Library/Frameworks/Foundation.framework/Headers/Foundation.h :6: 在从导入的模块“达尔文”中 /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS13.5.sdk/System/Library/Frameworks/CoreFoundation.framework/Headers/CoreFoun 日期.h:16: /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS13.5.sdk/usr/include/AvailabilityMacros.h:180:60：注意：从宏扩展 '已弃用_属性' #define DEPRECATED_ATTRIBUTE 属性（（已弃用）） ^ /Users/vickky/Documents/flutter/.pub-cache/hosted/pub.dartlang.org/firebase_messaging-6.0.16/ios/Classes/FLTFirebaseMessagingPlugin.m:306:1：警告：实施不推荐使用的方法 [-Wdeprecated-implementations] - (void)messaging:(FIRMessaging *)messaging ^ 在从 /Users/vickky/Documents/project1/ios/Pods/Headers/Public/Firebase/Firebase.h:72 导入的模块“FirebaseMessaging”中： /Users/vickky/Documents/project1/ios/Pods/FirebaseMessaging/FirebaseMessaging/Sources/Public/FIRMessaging.h:253:1：注意：方法 'messaging:didReceiveMessage:' 声明这里 - (void)messaging:(FIRMessaging *)messaging ^ /Users/vickky/Documents/flutter/.pub-cache/hosted/pub.dartlang.org/firebase_messaging-6.0.16/ios/Classes/FLTFirebaseMessagingPlugin.m:308:63：警告：“appData”是已弃用 [-Wdeprecated-declarations] [_channel invokeMethod:@"onMessage" 参数：remoteMessage.appData]; ^ 在从 /Users/vickky/Documents/project1/ios/Pods/Headers/Public/Firebase/Firebase.h:72 导入的模块“FirebaseMessaging”中： /Users/vickky/Documents/project1/ios/Pods/FirebaseMessaging/FirebaseMessaging/Sources/Public/FIRMessaging.h:226:62：注意：“appData”已被明确标记为弃用这里 @property(nonatomic, readonly, strong) NSDictionary *appData DEPRECATED_ATTRIBUTE; ^ 在从 /Users/vickky/Documents/project1/ios/Pods/Target Support 导入的模块“UIKit”中文件/firebase_messaging/firebase_messaging-prefix.pch:2：在从导入的模块“Foundation”中 /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS13.5.sdk/System/Library/Frameworks/UIKit.framework/Headers/UIKit.h:8：在从导入的模块“CoreFoundation”中 /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS13.5.sdk/System/Library/Frameworks/Foundation.framework/Headers/Foundation.h :6: 在从导入的模块“达尔文”中 /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS13.5.sdk/System/Library/Frameworks/CoreFoundation.framework/Headers/CoreFoun 日期.h:16: /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS13.5.sdk/usr/include/AvailabilityMacros.h:180:60：注意：从宏扩展 '已弃用_属性' #define DEPRECATED_ATTRIBUTE 属性（（已弃用）） ^ 生成 6 个警告。生成 1 个警告。子集字体失败；中止。
Command PhaseScriptExecution failed with a nonzero exit code
note: Using new build system
note: Building targets in parallel
note: Planning build
note: Constructing build description
warning: Skipping duplicate build file in Copy Headers build phase:
/Users/vickky/Documents/project1/ios/Pods/TOCropViewController/Objective-C/TOCropViewController/Models/TOActivityCroppedImageProvider.h
（在目标“TOCropViewController”中来自项目'Pods'）警告：在 Copy Headers 构建阶段跳过重复的构建文件： /Users/vickky/Documents/project1/ios/Pods/TOCropViewController/Objective-C/TOCropViewController/Views/TOCropOverlayView.h （在项目的目标“TOCropViewController”中 '豆荚'）警告：在 Copy Headers 构建阶段跳过重复的构建文件： /Users/vickky/Documents/project1/ios/Pods/TOCropViewController/Objective-C/TOCropViewController/Models/TOCroppedImageAttributes.h （在目标“TOCropViewController”中项目“豆荚”）警告：在 Copy Headers 构建阶段跳过重复的构建文件： /Users/vickky/Documents/project1/ios/Pods/TOCropViewController/Objective-C/TOCropViewController/Views/TOCropScrollView.h （在项目的目标“TOCropViewController”中 '豆荚'）警告：在 Copy Headers 构建阶段跳过重复的构建文件： /Users/vickky/Documents/project1/ios/Pods/TOCropViewController/Objective-C/TOCropViewController/Views/TOCropToolbar.h （在项目的目标“TOCropViewController”中 '豆荚'）警告：在 Copy Headers 构建阶段跳过重复的构建文件： /Users/vickky/Documents/project1/ios/Pods/TOCropViewController/Objective-C/TOCropViewController/Views/TOCropView.h （在项目“Pods”的目标“TOCropViewController”中）警告：在 Copy Headers 构建阶段跳过重复的构建文件： /Users/vickky/Documents/project1/ios/Pods/TOCropViewController/Objective-C/TOCropViewController/TOCropViewController.h （在项目的目标“TOCropViewController”中 '豆荚'）警告：在 Copy Headers 构建阶段跳过重复的构建文件： /Users/vickky/Documents/project1/ios/Pods/TOCropViewController/Objective-C/TOCropViewController/Models/TOCropViewControllerTransitioning.h （在目标来自项目“Pods”的“TOCropViewController”）

为设备构建时遇到错误。

【问题讨论】：

你可以尝试降级到flutter 1.17.5吗？
@MJMontes 当然我可以试试这个，但谷歌搜索后我没有得到具体的程序。请向我建议相同的程序。谢谢
降级到我提到的版本，运行flutter version v1.17.5你也可以试试下面的答案。
@MJMontes 感谢您的指导，我已经尝试了以下步骤，但目前还不行。希望降级工作
即使降级也没有用

标签： ios xcode flutter dart build

【解决方案1】：

这是图像裁剪器的问题，请参见此处：not able to build project in iOS

我的解决方法是：

我删除了iOS文件夹下的Pods文件夹&Podfile&Podfile.lock
我跑了flutter clean & flutter packages get

如果还是不行，试试稳定频道flutter channel stable，然后再回到flutter channel master，每一步都重复上面的步骤。有时切换频道会出于某种原因解决问题。

【讨论】：