ld：未找到框架 Flutter

Question

当我在 iOS 模拟器上为 iOS 构建 flutter 项目时，它给了我一个错误

ld: framework not found Flutter

并且构建失败。

这是我尝试从 xcode 构建 flutter 项目时的错误消息：

 export IPHONEOS_DEPLOYMENT_TARGET=9.0
 export PATH="/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/usr/bin:/Applications/Xcode.app/Contents/Developer/usr/bin:/usr/local/bin:/usr/bin:/bin:/usr/sbin:/sbin"
 /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang \
     -arch x86_64 -isysroot /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator12.2.sdk \
     -L/Users/abhijeetnigoskar/Library/Developer/Xcode/DerivedData/Runner-axtptzubiqvjnbhgcbxfykotbmup/Build/Products/Debug-iphonesimulator \
     -L/Users/abhijeetnigoskar/Library/Developer/Xcode/DerivedData/Runner-axtptzubiqvjnbhgcbxfykotbmup/Build/Products/Debug-iphonesimulator/Stripe \
     -L/Users/abhijeetnigoskar/Library/Developer/Xcode/DerivedData/Runner-axtptzubiqvjnbhgcbxfykotbmup/Build/Products/Debug-iphonesimulator/shared_preferences \
     -L/Users/abhijeetnigoskar/Desktop/flutter_workspace/zenspace_pro/ios/Pods/Stripe/InternalFrameworks \
     -L/Users/abhijeetnigoskar/Desktop/flutter_workspace/zenspace_pro/ios/Flutter \
     -F/Users/abhijeetnigoskar/Library/Developer/Xcode/DerivedData/Runner-axtptzubiqvjnbhgcbxfykotbmup/Build/Products/Debug-iphonesimulator \
     -F/Users/abhijeetnigoskar/Desktop/flutter_workspace/zenspace_pro/ios/Pods/../.symlinks/flutter/ios \
     -F/Users/abhijeetnigoskar/Desktop/flutter_workspace/zenspace_pro/ios/Flutter \
     -filelist /Users/abhijeetnigoskar/Library/Developer/Xcode/DerivedData/Runner-axtptzubiqvjnbhgcbxfykotbmup/Build/Intermediates.noindex/Runner.build/Debug-iphonesimulator/Runner.build/Objects-normal/x86_64/Runner.LinkFileList \
     -Xlinker -rpath -Xlinker @executable_path/Frameworks \
     -mios-simulator-version-min=9.0 -dead_strip -Xlinker -object_path_lto \
     -Xlinker /Users/abhijeetnigoskar/Library/Developer/Xcode/DerivedData/Runner-axtptzubiqvjnbhgcbxfykotbmup/Build/Intermediates.noindex/Runner.build/Debug-iphonesimulator/Runner.build/Objects-normal/x86_64/Runner_lto.o \
     -Xlinker -export_dynamic -Xlinker -no_deduplicate \
     -Xlinker -objc_abi_version -Xlinker 2 -fobjc-arc \
     -fobjc-link-runtime -ObjC -lStripe -lStripe3DS2 -lshared_preferences \
     -framework Contacts -framework CoreLocation -framework Flutter \
     -framework Foundation -framework PassKit -framework Security \
     -framework WebKit -ObjC -lStripe -lStripe3DS2 -lshared_preferences \
     -framework Contacts -framework CoreLocation -framework Flutter \
     -framework Foundation -framework PassKit -framework Security \
     -framework WebKit -Xlinker -sectcreate -Xlinker __TEXT -Xlinker __entitlements \
     -Xlinker /Users/abhijeetnigoskar/Library/Developer/Xcode/DerivedData/Runner-axtptzubiqvjnbhgcbxfykotbmup/Build/Intermediates.noindex/Runner.build/Debug-iphonesimulator/Runner.build/Runner.app-Simulated.xcent \
     -framework App -framework Flutter -lPods-Runner -Xlinker -dependency_info \
     -Xlinker /Users/abhijeetnigoskar/Library/Developer/Xcode/DerivedData/Runner-axtptzubiqvjnbhgcbxfykotbmup/Build/Intermediates.noindex/Runner.build/Debug-iphonesimulator/Runner.build/Objects-normal/x86_64/Runner_dependency_info.dat \
     -o /Users/abhijeetnigoskar/Library/Developer/Xcode/DerivedData/Runner-axtptzubiqvjnbhgcbxfykotbmup/Build/Products/Debug-iphonesimulator/Runner.app/Runner

ld: framework not found Flutter
clang: error: linker command failed with exit code 1 (use -v to see invocation)

这是我使用以下命令从 VScode 构建 flutter 项目时的输出flutter build ios --debug --verbose：

-framework Flutter -lPods-Runner -Xlinker -dependency_info \
-Xlinker /Users/abhijeetnigoskar/Library/Developer/Xcode/DerivedData/Runner-axtptzubiqvjnbhgcbxfykotbmup/Build/Intermediates.noindex/Runner.build/Debug-iphoneos/Runner.build/Objects-normal/arm64/Runner_dependency_info.dat \
-o /Users/abhijeetnigoskar/Library/Developer/Xcode/DerivedData/Runner-axtptzubiqvjnbhgcbxfykotbmup/Build/Intermediates.noindex/Runner.build/Debug-iphoneos/Runner.build/Objects-normal/arm64/Runner

 ld: framework not found Flutter
 clang: error: linker command failed with exit code 1 (use -v to see invocation)

 [+1864 ms] "flutter ios" took 46,343ms.
 [        ] "flutter ios" took 46,343ms.
 Encountered error while building for device.

 #0      throwToolExit (package:flutter_tools/src/base/common.dart:28:3)
 #1      BuildIOSCommand.runCommand (package:flutter_tools/src/commands/build_ios.dart:94:7) <asynchronous suspension>
 #2      FlutterCommand.verifyThenRunCommand (package:flutter_tools/src/runner/flutter_command.dart:478:18) <asynchronous suspension>
 #3      FlutterCommand.run.<anonymous closure> (package:flutter_tools/src/runner/flutter_command.dart:383:33) <asynchronous suspension>
 #4      AppContext.run.<anonymous closure> (package:flutter_tools/src/base/context.dart:153:29) <asynchronous suspension>
 #5      _rootRun (dart:async/zone.dart:1124:13)
 #6      _CustomZone.run (dart:async/zone.dart:1021:19)
 #7      _runZoned (dart:async/zone.dart:1516:10)
 #8      runZoned (dart:async/zone.dart:1463:12)
 #9      AppContext.run (package:flutter_tools/src/base/context.dart:152:18) <asynchronous suspension>
 #10     FlutterCommand.run (package:flutter_tools/src/runner/flutter_command.dart:375:20)
 #11     CommandRunner.runCommand (package:args/command_runner.dart:197:27) <asynchronous suspension>
 #12     FlutterCommandRunner.runCommand.<anonymous closure> (package:flutter_tools/src/runner/flutter_command_runner.dart:396:21) |asynchronous suspension>
 #13     AppContext.run.<anonymous closure> (package:flutter_tools/src/base/context.dart:153:29) <asynchronous suspension>
 #14     _rootRun (dart:async/zone.dart:1124:13)
 #15     _CustomZone.run (dart:async/zone.dart:1021:19)
 #16     _runZoned (dart:async/zone.dart:1516:10)
 #17     runZoned (dart:async/zone.dart:1463:12)
 #18     AppContext.run (package:flutter_tools/src/base/context.dart:152:18) <asynchronous suspension>
 #19     FlutterCommandRunner.runCommand (package:flutter_tools/src/runner/flutter_command_runner.dart:356:19) <asynchronous suspension>
 #20     CommandRunner.run.<anonymous closure> (package:args/command_runner.dart:112:25)
 #21     new Future.sync (dart:async/future.dart:224:31)
 #22     CommandRunner.run (package:args/command_runner.dart:112:14)
 #23     FlutterCommandRunner.run (package:flutter_tools/src/runner/flutter_command_runner.dart:242:18)
 #24     run.<anonymous closure>.<anonymous closure> (package:flutter_tools/runner.dart:62:22) <asynchronous suspension>
 #25     _rootRun (dart:async/zone.dart:1124:13)
 #26     _CustomZone.run (dart:async/zone.dart:1021:19)
 #27     _runZoned (dart:async/zone.dart:1516:10)
 #28     runZoned (dart:async/zone.dart:1500:12)
 #29     run.<anonymous closure> (package:flutter_tools/runner.dart:60:18) <asynchronous suspension>
 #30     AppContext.run.<anonymous closure> (package:flutter_tools/src/base/context.dart:153:29) <asynchronous suspension>
 #31     _rootRun (dart:async/zone.dart:1124:13)
 #32     _CustomZone.run (dart:async/zone.dart:1021:19)
 #33     _runZoned (dart:async/zone.dart:1516:10)
 #34     runZoned (dart:async/zone.dart:1463:12)
 #35     AppContext.run (package:flutter_tools/src/base/context.dart:152:18) <asynchronous suspension>
 #36     runInContext enter code here(package:flutter_tools/src/context_runner.dart:56:24) <asynchronous suspension>
 #37     run (package:flutter_tools/runner.dart:51:10)
 #38     main (package:flutter_tools/executable.dart:62:9) <asynchronous suspension>
 #39     main (file:///Users/abhijeetnigoskar/flutter/packages/flutter_tools/bin/flutter_tools.dart:8:3)
 #40 _startIsolate.<anonymous closure> (dart:isolate patch/isolate_patch.dart:299:32)
 #41 RawReceivePortImpl._handleMessage (dart:isolate-patch/isolate_patch.dart:172:12)

Answer 1

我已经尝试了很多解决这个错误的方法。唯一可能的解决方案是删除FLUTTER PATH中的flutter文件夹，并重新复制flutter文件夹。

这解决了我的错误。

Answer 2

错误原因是我从 Documents 文件夹中删除了 flutter 命令行。但它是通过运行解决的flutter upgrade

Answer 3

您缺少 Flutter 将其添加到其PATH中

导航到 flutter 包，获取文件夹路径并将其添加到应显示的路径中。

export PATH=$PATH:/package_to_flutter/bin

此外，请格式化您的问题，以便人们更容易快速回答。

干杯