ios - 更新 flutter 后面临构建问题

Question

我在反复为 iOS 设备构建时出现此错误，我尝试了很多东西但还没有解决方案。 Flutter Firebase 项目会出现此问题，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] warning: The file reference for "Objective-C/TOCropViewController/Models/TOActivityCroppedImageProvider.h" is a member of multiple groups ("TOCropViewController" and "TOCropViewController"); this indicates a malformed project. Only the membership in one of the groups will be preserved (but membership in targets will be unaffected). If you want a reference to the same file in more than one group, please add another reference to the same path. 2020-09-05 12:53:42.052 xcodebuild[72084:478348] warning: The file reference for "Objective-C/TOCropViewController/Views/TOCropOverlayView.h" is a member of multiple groups ("TOCropViewController" and "TOCropViewController"); this indicates a malformed project. Only the membership in one of the groups will be preserved (but membership in targets will be unaffected). If you want a reference to the same file in more than one group, please add another reference to the same path. 2020-09-05 12:53:42.052 xcodebuild[72084:478348] warning: The file reference for "Objective-C/TOCropViewController/Models/TOCroppedImageAttributes.h" is a member of multiple groups ("TOCropViewController" and "TOCropViewController"); this indicates a malformed project. Only the membership in one of the groups will be preserved (but membership in targets will be unaffected). If you want a reference to the same file in more than one group, please add another reference to the same path. 2020-09-05 12:53:42.052 xcodebuild[72084:478348] warning: The file reference for "Objective-C/TOCropViewController/Views/TOCropScrollView.h" is a member of multiple groups ("TOCropViewController" and "TOCropViewController"); this indicates a malformed project. Only the membership in one of the groups will be preserved (but membership in targets will be unaffected). If you want a reference to the same file in more than one group, please add another reference to the same path. 2020-09-05 12:53:42.052 xcodebuild[72084:478348] warning: The file reference for "Objective-C/TOCropViewController/Views/TOCropToolbar.h" is a member of multiple groups ("TOCropViewController" and "TOCropViewController"); this indicates a malformed project. Only the membership in one of the groups will be preserved (but membership in targets will be unaffected). If you want a reference to the same file in more than one group, please add another reference to the same path. 2020-09-05 12:53:42.052 xcodebuild[72084:478348] warning: The file reference for "Objective-C/TOCropViewController/Views/TOCropView.h" is a member of multiple groups ("TOCropViewController" and "TOCropViewController"); this indicates a malformed project. Only the membership in one of the groups will be preserved (but membership in targets will be unaffected). If you want a reference to the same file in more than one group, please add another reference to the same path. 2020-09-05 12:53:42.052 xcodebuild[72084:478348] warning: The file reference for "Objective-C/TOCropViewController/TOCropViewController.h" is a member of multiple groups ("TOCropViewController" and "TOCropViewController"); this indicates a malformed project. Only the membership in one of the groups will be preserved (but membership in targets will be unaffected). If you want a reference to the same file in more than one group, please add another reference to the same path. 2020-09-05 12:53:42.052 xcodebuild[72084:478348] warning: The file reference for "Objective-C/TOCropViewController/Models/TOCropViewControllerTransitioning.h" is a member of multiple groups ("TOCropViewController" and "TOCropViewController"); this indicates a malformed project. Only the membership in one of the groups will be preserved (but membership in targets will be unaffected). If you want a reference to the same file in more than one group, please add another reference to the same path. ** BUILD FAILED **

Xcode's output: ↳ In file included from /Users/vickky/Documents/flutter/.pub-cache/hosted/pub.dartlang.org/fluttertoast-7.0.4/ios/Classes/UIView+Toast.m:26: /Users/vickky/Documents/flutter/.pub-cache/hosted/pub.dartlang.org/fluttertoast-7.0.4/ios/Classes/UIView+Toast.h:328:19: warning: empty paragraph passed to '@param' command [-Wdocumentation] @param sharedStyle ~~~~~~~~~~~~~~~~~^ /Users/vickky/Documents/flutter/.pub-cache/hosted/pub.dartlang.org/fluttertoast-7.0.4/ios/Classes/UIView+Toast.h:343:25: warning: empty paragraph passed to '@param' command [-Wdocumentation] @param allowTapToDismiss ~~~~~~~~~~~~~~~~~~~~~~~^ /Users/vickky/Documents/flutter/.pub-cache/hosted/pub.dartlang.org/fluttertoast-7.0.4/ios/Classes/UIView+Toast.h:343:9: warning: parameter 'allowTapToDismiss' not found in the function declaration [-Wdocumentation] @param allowTapToDismiss ^~~~~~~~~~~~~~~~~ /Users/vickky/Documents/flutter/.pub-cache/hosted/pub.dartlang.org/fluttertoast-7.0.4/ios/Classes/UIView+Toast.h:343:9: note: did you mean 'tapToDismissEnabled'? @param allowTapToDismiss ^~~~~~~~~~~~~~~~~ tapToDismissEnabled /Users/vickky/Documents/flutter/.pub-cache/hosted/pub.dartlang.org/fluttertoast-7.0.4/ios/Classes/UIView+Toast.h:362:20: warning: empty paragraph passed to '@param' command [-Wdocumentation] @param queueEnabled ~~~~~~~~~~~~~~~~~~^ 4 warnings generated. In file included from /Users/vickky/Documents/flutter/.pub-cache/hosted/pub.dartlang.org/fluttertoast-7.0.4/ios/Classes/UIView+Toast.m:26: /Users/vickky/Documents/flutter/.pub-cache/hosted/pub.dartlang.org/fluttertoast-7.0.4/ios/Classes/UIView+Toast.h:328:19: warning: empty paragraph passed to '@param' command [-Wdocumentation] @param sharedStyle ~~~~~~~~~~~~~~~~~^ /Users/vickky/Documents/flutter/.pub-cache/hosted/pub.dartlang.org/fluttertoast-7.0.4/ios/Classes/UIView+Toast.h:343:25: warning: empty paragraph passed to '@param' command [-Wdocumentation] @param allowTapToDismiss ~~~~~~~~~~~~~~~~~~~~~~~^ /Users/vickky/Documents/flutter/.pub-cache/hosted/pub.dartlang.org/fluttertoast-7.0.4/ios/Classes/UIView+Toast.h:343:9: warning: parameter 'allowTapToDismiss' not found in the function declaration [-Wdocumentation] @param allowTapToDismiss ^~~~~~~~~~~~~~~~~ /Users/vickky/Documents/flutter/.pub-cache/hosted/pub.dartlang.org/fluttertoast-7.0.4/ios/Classes/UIView+Toast.h:343:9: note: did you mean 'tapToDismissEnabled'? @param allowTapToDismiss ^~~~~~~~~~~~~~~~~ tapToDismissEnabled /Users/vickky/Documents/flutter/.pub-cache/hosted/pub.dartlang.org/fluttertoast-7.0.4/ios/Classes/UIView+Toast.h:362:20: warning: empty paragraph passed to '@param' command [-Wdocumentation] @param queueEnabled ~~~~~~~~~~~~~~~~~~^ 4 warnings generated. In file included from /Users/vickky/Documents/flutter/.pub-cache/hosted/pub.dartlang.org/fluttertoast-7.0.4/ios/Classes/FluttertoastPlugin.m:2: /Users/vickky/Documents/flutter/.pub-cache/hosted/pub.dartlang.org/fluttertoast-7.0.4/ios/Classes/UIView+Toast.h:328:19: warning: empty paragraph passed to '@param' command [-Wdocumentation] @param sharedStyle ~~~~~~~~~~~~~~~~~^ /Users/vickky/Documents/flutter/.pub-cache/hosted/pub.dartlang.org/fluttertoast-7.0.4/ios/Classes/UIView+Toast.h:343:25: warning: empty paragraph passed to '@param' command [-Wdocumentation] @param allowTapToDismiss ~~~~~~~~~~~~~~~~~~~~~~~^ /Users/vickky/Documents/flutter/.pub-cache/hosted/pub.dartlang.org/fluttertoast-7.0.4/ios/Classes/UIView+Toast.h:343:9: warning: parameter 'allowTapToDismiss' not found in the function declaration [-Wdocumentation] @param allowTapToDismiss ^~~~~~~~~~~~~~~~~ /Users/vickky/Documents/flutter/.pub-cache/hosted/pub.dartlang.org/fluttertoast-7.0.4/ios/Classes/UIView+Toast.h:343:9: note: did you mean 'tapToDismissEnabled'? @param allowTapToDismiss ^~~~~~~~~~~~~~~~~ tapToDismissEnabled /Users/vickky/Documents/flutter/.pub-cache/hosted/pub.dartlang.org/fluttertoast-7.0.4/ios/Classes/UIView+Toast.h:362:20: warning: empty paragraph passed to '@param' command [-Wdocumentation] @param queueEnabled ~~~~~~~~~~~~~~~~~~^ /Users/vickky/Documents/flutter/.pub-cache/hosted/pub.dartlang.org/fluttertoast-7.0.4/ios/Classes/FluttertoastPlugin.m:20:23: warning: unused variable 'viewController' [-Wunused-variable] UIViewController *viewController = ^ /Users/vickky/Documents/flutter/.pub-cache/hosted/pub.dartlang.org/fluttertoast-7.0.4/ios/Classes/FluttertoastPlugin.m:99:21: warning: unused variable 'topPadding' [-Wunused-variable] 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: warning: unused variable 'bottomPadding' [-Wunused-variable] 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: warning: unused variable 'size' [-Wunused-variable] NSNumber *size = call.arguments[@"size"]; ^ 8 warnings generated. In file included from /Users/vickky/Documents/flutter/.pub-cache/hosted/pub.dartlang.org/fluttertoast-7.0.4/ios/Classes/FluttertoastPlugin.m:2: /Users/vickky/Documents/flutter/.pub-cache/hosted/pub.dartlang.org/fluttertoast-7.0.4/ios/Classes/UIView+Toast.h:328:19: warning: empty paragraph passed to '@param' command [-Wdocumentation] @param sharedStyle ~~~~~~~~~~~~~~~~~^ /Users/vickky/Documents/flutter/.pub-cache/hosted/pub.dartlang.org/fluttertoast-7.0.4/ios/Classes/UIView+Toast.h:343:25: warning: empty paragraph passed to '@param' command [-Wdocumentation] @param allowTapToDismiss ~~~~~~~~~~~~~~~~~~~~~~~^ /Users/vickky/Documents/flutter/.pub-cache/hosted/pub.dartlang.org/fluttertoast-7.0.4/ios/Classes/UIView+Toast.h:343:9: warning: parameter 'allowTapToDismiss' not found in the function declaration [-Wdocumentation] @param allowTapToDismiss ^~~~~~~~~~~~~~~~~ /Users/vickky/Documents/flutter/.pub-cache/hosted/pub.dartlang.org/fluttertoast-7.0.4/ios/Classes/UIView+Toast.h:343:9: note: did you mean 'tapToDismissEnabled'? @param allowTapToDismiss ^~~~~~~~~~~~~~~~~ tapToDismissEnabled /Users/vickky/Documents/flutter/.pub-cache/hosted/pub.dartlang.org/fluttertoast-7.0.4/ios/Classes/UIView+Toast.h:362:20: warning: empty paragraph passed to '@param' command [-Wdocumentation] @param queueEnabled ~~~~~~~~~~~~~~~~~~^ /Users/vickky/Documents/flutter/.pub-cache/hosted/pub.dartlang.org/fluttertoast-7.0.4/ios/Classes/FluttertoastPlugin.m:20:23: warning: unused variable 'viewController' [-Wunused-variable] UIViewController *viewController = ^ /Users/vickky/Documents/flutter/.pub-cache/hosted/pub.dartlang.org/fluttertoast-7.0.4/ios/Classes/FluttertoastPlugin.m:99:21: warning: unused variable 'topPadding' [-Wunused-variable] 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: warning: unused variable 'bottomPadding' [-Wunused-variable] 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: warning: unused variable 'size' [-Wunused-variable] NSNumber *size = call.arguments[@"size"]; ^ 8 warnings generated. 6 warnings generated. /Users/vickky/Documents/flutter/.pub-cache/hosted/pub.dartlang.org/firebase_messaging-6.0.16/ios/Classes/FLTFirebaseMessagingPlugin.m:195:43: warning: 'FIRMessagingRemoteMessage' is deprecated: FCM direct channel is deprecated, please use APNs for downstream message handling. [-Wdeprecated-declarations] - (void)applicationReceivedRemoteMessage:(FIRMessagingRemoteMessage *)remoteMessage { ^ In module 'FirebaseMessaging' imported from /Users/vickky/Documents/project1/ios/Pods/Headers/Public/Firebase/Firebase.h:72: /Users/vickky/Documents/project1/ios/Pods/FirebaseMessaging/FirebaseMessaging/Sources/Public/FIRMessaging.h:219:1: note: 'FIRMessagingRemoteMessage' has been explicitly marked deprecated here __deprecated_msg( ^ In module 'UIKit' imported from /Users/vickky/Documents/project1/ios/Pods/Target Support Files/firebase_messaging/firebase_messaging-prefix.pch:2: In module 'Foundation' imported from /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS13.5.sdk/System/Library/Frameworks/UIKit.framework/Headers/UIKit.h:8: In module 'CoreFoundation' imported from /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS13.5.sdk/System/Library/Frameworks/Foundation.framework/Headers/Foundation.h :6: In module 'Darwin' imported from /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS13.5.sdk/System/Library/Frameworks/CoreFoundation.framework/Headers/CoreFoun dation.h:16: /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS13.5.sdk/usr/include/sys/cdefs.h:191:48: note: expanded from macro '__deprecated_msg' #define __deprecated_msg(_msg) attribute((deprecated(_msg))) ^ /Users/vickky/Documents/flutter/.pub-cache/hosted/pub.dartlang.org/firebase_messaging-6.0.16/ios/Classes/FLTFirebaseMessagingPlugin.m:307:24: warning: 'FIRMessagingRemoteMessage' is deprecated: FCM direct channel is deprecated, please use APNs for downstream message handling. [-Wdeprecated-declarations] didReceiveMessage:(FIRMessagingRemoteMessage *)remoteMessage { ^ In module 'FirebaseMessaging' imported from /Users/vickky/Documents/project1/ios/Pods/Headers/Public/Firebase/Firebase.h:72: /Users/vickky/Documents/project1/ios/Pods/FirebaseMessaging/FirebaseMessaging/Sources/Public/FIRMessaging.h:219:1: note: 'FIRMessagingRemoteMessage' has been explicitly marked deprecated here __deprecated_msg( ^ In module 'UIKit' imported from /Users/vickky/Documents/project1/ios/Pods/Target Support Files/firebase_messaging/firebase_messaging-prefix.pch:2: In module 'Foundation' imported from /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS13.5.sdk/System/Library/Frameworks/UIKit.framework/Headers/UIKit.h:8: In module 'CoreFoundation' imported from /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS13.5.sdk/System/Library/Frameworks/Foundation.framework/Headers/Foundation.h :6: In module 'Darwin' imported from /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS13.5.sdk/System/Library/Frameworks/CoreFoundation.framework/Headers/CoreFoun dation.h:16: /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS13.5.sdk/usr/include/sys/cdefs.h:191:48: note: expanded from macro '__deprecated_msg' #define __deprecated_msg(_msg) attribute((deprecated(_msg))) ^ /Users/vickky/Documents/flutter/.pub-cache/hosted/pub.dartlang.org/firebase_messaging-6.0.16/ios/Classes/FLTFirebaseMessagingPlugin.m:141:30: warning: 'shouldEstablishDirectChannel' is deprecated: FCM direct channel is deprecated, please use APNs channel for downstream message delivery. [-Wdeprecated-declarations] [FIRMessaging messaging].shouldEstablishDirectChannel = true; ^ In module 'FirebaseMessaging' imported from /Users/vickky/Documents/project1/ios/Pods/Headers/Public/Firebase/Firebase.h:72: /Users/vickky/Documents/project1/ios/Pods/FirebaseMessaging/FirebaseMessaging/Sources/Public/FIRMessaging.h:283:56: note: 'shouldEstablishDirectChannel' has been explicitly marked deprecated here @property(nonatomic) BOOL shouldEstablishDirectChannel DEPRECATED_MSG_ATTRIBUTE( ^ In module 'UIKit' imported from /Users/vickky/Documents/project1/ios/Pods/Target Support Files/firebase_messaging/firebase_messaging-prefix.pch:2: In module 'Foundation' imported from /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS13.5.sdk/System/Library/Frameworks/UIKit.framework/Headers/UIKit.h:8: In module 'CoreFoundation' imported from /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS13.5.sdk/System/Library/Frameworks/Foundation.framework/Headers/Foundation.h :6: In module 'Darwin' imported from /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS13.5.sdk/System/Library/Frameworks/CoreFoundation.framework/Headers/CoreFoun dation.h:16: /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS13.5.sdk/usr/include/AvailabilityMacros.h:182:64: note: expanded from macro 'DEPRECATED_MSG_ATTRIBUTE' #define DEPRECATED_MSG_ATTRIBUTE(s) attribute((deprecated(s))) ^ /Users/vickky/Documents/flutter/.pub-cache/hosted/pub.dartlang.org/firebase_messaging-6.0.16/ios/Classes/FLTFirebaseMessagingPlugin.m:196:52: warning: 'appData' is deprecated [-Wdeprecated-declarations] [self didReceiveRemoteNotification:remoteMessage.appData]; ^ In module 'FirebaseMessaging' imported from /Users/vickky/Documents/project1/ios/Pods/Headers/Public/Firebase/Firebase.h:72: /Users/vickky/Documents/project1/ios/Pods/FirebaseMessaging/FirebaseMessaging/Sources/Public/FIRMessaging.h:226:62: note: 'appData' has been explicitly marked deprecated here @property(nonatomic, readonly, strong) NSDictionary *appData DEPRECATED_ATTRIBUTE; ^ In module 'UIKit' imported from /Users/vickky/Documents/project1/ios/Pods/Target Support Files/firebase_messaging/firebase_messaging-prefix.pch:2: In module 'Foundation' imported from /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS13.5.sdk/System/Library/Frameworks/UIKit.framework/Headers/UIKit.h:8: In module 'CoreFoundation' imported from /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS13.5.sdk/System/Library/Frameworks/Foundation.framework/Headers/Foundation.h :6: In module 'Darwin' imported from /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS13.5.sdk/System/Library/Frameworks/CoreFoundation.framework/Headers/CoreFoun dation.h:16: /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS13.5.sdk/usr/include/AvailabilityMacros.h:180:60: note: expanded from macro 'DEPRECATED_ATTRIBUTE' #define DEPRECATED_ATTRIBUTE attribute((deprecated)) ^ /Users/vickky/Documents/flutter/.pub-cache/hosted/pub.dartlang.org/firebase_messaging-6.0.16/ios/Classes/FLTFirebaseMessagingPlugin.m:306:1: warning: implementing deprecated method [-Wdeprecated-implementations] - (void)messaging:(FIRMessaging *)messaging ^ In module 'FirebaseMessaging' imported from /Users/vickky/Documents/project1/ios/Pods/Headers/Public/Firebase/Firebase.h:72: /Users/vickky/Documents/project1/ios/Pods/FirebaseMessaging/FirebaseMessaging/Sources/Public/FIRMessaging.h:253:1: note: method 'messaging:didReceiveMessage:' declared here - (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: warning: 'appData' is deprecated [-Wdeprecated-declarations] [_channel invokeMethod:@"onMessage" arguments:remoteMessage.appData]; ^ In module 'FirebaseMessaging' imported from /Users/vickky/Documents/project1/ios/Pods/Headers/Public/Firebase/Firebase.h:72: /Users/vickky/Documents/project1/ios/Pods/FirebaseMessaging/FirebaseMessaging/Sources/Public/FIRMessaging.h:226:62: note: 'appData' has been explicitly marked deprecated here @property(nonatomic, readonly, strong) NSDictionary *appData DEPRECATED_ATTRIBUTE; ^ In module 'UIKit' imported from /Users/vickky/Documents/project1/ios/Pods/Target Support Files/firebase_messaging/firebase_messaging-prefix.pch:2: In module 'Foundation' imported from /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS13.5.sdk/System/Library/Frameworks/UIKit.framework/Headers/UIKit.h:8: In module 'CoreFoundation' imported from /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS13.5.sdk/System/Library/Frameworks/Foundation.framework/Headers/Foundation.h :6: In module 'Darwin' imported from /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS13.5.sdk/System/Library/Frameworks/CoreFoundation.framework/Headers/CoreFoun dation.h:16: /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS13.5.sdk/usr/include/AvailabilityMacros.h:180:60: note: expanded from macro 'DEPRECATED_ATTRIBUTE' #define DEPRECATED_ATTRIBUTE attribute((deprecated)) ^ 6 warnings generated. 1 warning generated. Failed to subset font; aborting.

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

(in target 'TOCropViewController' from project 'Pods') warning: Skipping duplicate build file in Copy Headers build phase: /Users/vickky/Documents/project1/ios/Pods/TOCropViewController/Objective-C/TOCropViewController/Views/TOCropOverlayView.h (in target 'TOCropViewController' from project 'Pods') warning: Skipping duplicate build file in Copy Headers build phase: /Users/vickky/Documents/project1/ios/Pods/TOCropViewController/Objective-C/TOCropViewController/Models/TOCroppedImageAttributes.h (in target 'TOCropViewController' from project 'Pods') warning: Skipping duplicate build file in Copy Headers build phase: /Users/vickky/Documents/project1/ios/Pods/TOCropViewController/Objective-C/TOCropViewController/Views/TOCropScrollView.h (in target 'TOCropViewController' from project 'Pods') warning: Skipping duplicate build file in Copy Headers build phase: /Users/vickky/Documents/project1/ios/Pods/TOCropViewController/Objective-C/TOCropViewController/Views/TOCropToolbar.h (in target 'TOCropViewController' from project 'Pods') warning: Skipping duplicate build file in Copy Headers build phase: /Users/vickky/Documents/project1/ios/Pods/TOCropViewController/Objective-C/TOCropViewController/Views/TOCropView.h (in target 'TOCropViewController' from project 'Pods') warning: Skipping duplicate build file in Copy Headers build phase: /Users/vickky/Documents/project1/ios/Pods/TOCropViewController/Objective-C/TOCropViewController/TOCropViewController.h (in target 'TOCropViewController' from project 'Pods') warning: Skipping duplicate build file in Copy Headers build phase: /Users/vickky/Documents/project1/ios/Pods/TOCropViewController/Objective-C/TOCropViewController/Models/TOCropViewControllerTransitioning.h (in target 'TOCropViewController' from project 'Pods')

Encountered error while building for device.

Answer 1

这是图像裁剪器的问题，请参见此处:not able to build project in iOS
我解决它的方法是:

我删除了Pods文件夹 & Podfile & Podfile.lock iOS文件夹下

我跑了flutter clean & flutter packages get

不行的话试试稳定 channel flutter channel stable , 然后返回 flutter channel master并在每个步骤中重复上述步骤。有时切换 channel 会出于某种原因解决问题。