【发布时间】：2021-08-13 05:01:13
【问题描述】：
控制台告诉我以下内容：
Failed to build iOS app
Error output from Xcode build:
↳
** BUILD FAILED **
Xcode's output:
↳
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: 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 14.4.99. (in target 'leveldb-library' from project 'Pods')
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 14.4.99. (in target 'gRPC-Core' from project 'Pods')
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 14.4.99. (in target 'gRPC-C++' from project 'Pods')
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 14.4.99. (in target 'gRPC-C++-gRPCCertificates-Cpp' from project 'Pods')
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 14.4.99. (in target 'abseil' from project 'Pods')
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 14.4.99. (in target 'BoringSSL-GRPC' from project 'Pods')
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 14.4.99. (in target 'Flutter' from project 'Pods')
Could not build the application for the simulator.
Error launching application on iPhone 12.
我是编程新手，不知道该怎么做。
当我运行 flutter build ios --verbose:
[ +380 ms] executing: sysctl hw.optional.arm64
[ +85 ms] Exit code 1 from: sysctl hw.optional.arm64
[ +1 ms] sysctl: unknown oid 'hw.optional.arm64'
[ +24 ms] executing: [/Users/tlobry/Desktop/flutter/] git -c log.showSignature=false log -n 1 --pretty=format:%H
[ +56 ms] Exit code 0 from: git -c log.showSignature=false log -n 1 --pretty=format:%H
[ ] b22742018b3edf16c6cadd7b76d9db5e7f9064b5
[ +3 ms] executing: [/Users/tlobry/Desktop/flutter/] git tag --points-at b22742018b3edf16c6cadd7b76d9db5e7f9064b5
[ +168 ms] Exit code 0 from: git tag --points-at b22742018b3edf16c6cadd7b76d9db5e7f9064b5
[ ] 2.2.0
[ +24 ms] executing: [/Users/tlobry/Desktop/flutter/] git rev-parse --abbrev-ref --symbolic @{u}
[ +36 ms] Exit code 0 from: git rev-parse --abbrev-ref --symbolic @{u}
[ ] origin/beta
[ ] executing: [/Users/tlobry/Desktop/flutter/] git ls-remote --get-url origin
[ +33 ms] Exit code 0 from: git ls-remote --get-url origin
[ ] https://github.com/flutter/flutter.git
[ +356 ms] executing: [/Users/tlobry/Desktop/flutter/] git rev-parse --abbrev-ref HEAD
[ +37 ms] Exit code 0 from: git rev-parse --abbrev-ref HEAD
[ +1 ms] beta
[ +17 ms] executing: sw_vers -productName
[ +46 ms] Exit code 0 from: sw_vers -productName
[ ] Mac OS X
[ ] executing: sw_vers -productVersion
[ +36 ms] Exit code 0 from: sw_vers -productVersion
[ ] 10.15.7
[ ] executing: sw_vers -buildVersion
[ +37 ms] Exit code 0 from: sw_vers -buildVersion
[ ] 19H114
[ +243 ms] Artifact Instance of 'AndroidGenSnapshotArtifacts' is not required, skipping update.
[ ] Artifact Instance of 'AndroidInternalBuildArtifacts' is not required, skipping update.
[ ] Artifact Instance of 'IOSEngineArtifacts' is not required, skipping update.
[ ] Artifact Instance of 'FlutterWebSdk' is not required, skipping update.
[ +11 ms] Artifact Instance of 'WindowsEngineArtifacts' is not required, skipping update.
[ +1 ms] Artifact Instance of 'MacOSEngineArtifacts' is not required, skipping update.
[ ] Artifact Instance of 'LinuxEngineArtifacts' is not required, skipping update.
[ ] Artifact Instance of 'LinuxFuchsiaSDKArtifacts' is not required, skipping update.
[ ] Artifact Instance of 'MacOSFuchsiaSDKArtifacts' is not required, skipping update.
[ ] Artifact Instance of 'FlutterRunnerSDKArtifacts' is not required, skipping update.
[ ] Artifact Instance of 'FlutterRunnerDebugSymbols' is not required, skipping update.
[ +173 ms] Artifact Instance of 'MaterialFonts' is not required, skipping update.
[ ] Artifact Instance of 'GradleWrapper' is not required, skipping update.
[ ] Artifact Instance of 'AndroidGenSnapshotArtifacts' is not required, skipping update.
[ ] Artifact Instance of 'AndroidInternalBuildArtifacts' is not required, skipping update.
[ +18 ms] Artifact Instance of 'FlutterWebSdk' is not required, skipping update.
[ ] Artifact Instance of 'FlutterSdk' is not required, skipping update.
[ ] Artifact Instance of 'WindowsEngineArtifacts' is not required, skipping update.
[ ] Artifact Instance of 'MacOSEngineArtifacts' is not required, skipping update.
[ ] Artifact Instance of 'LinuxEngineArtifacts' is not required, skipping update.
[ ] Artifact Instance of 'LinuxFuchsiaSDKArtifacts' is not required, skipping update.
[ ] Artifact Instance of 'MacOSFuchsiaSDKArtifacts' is not required, skipping update.
[ ] Artifact Instance of 'FlutterRunnerSDKArtifacts' is not required, skipping update.
[ ] Artifact Instance of 'FlutterRunnerDebugSymbols' is not required, skipping update.
[ ] Artifact Instance of 'IosUsbArtifacts' is not required, skipping update.
[ ] Artifact Instance of 'IosUsbArtifacts' is not required, skipping update.
[ ] Artifact Instance of 'IosUsbArtifacts' is not required, skipping update.
[ ] Artifact Instance of 'IosUsbArtifacts' is not required, skipping update.
[ ] Artifact Instance of 'IosUsbArtifacts' is not required, skipping update.
[ ] Artifact Instance of 'FontSubsetArtifacts' is not required, skipping update.
[ ] Artifact Instance of 'PubDependencies' is not required, skipping update.
[ +68 ms] "flutter ios" took 371ms.
[ +87 ms] Target file "lib/main.dart" not found.
[ +7 ms]
#0 FlutterCommand.validateCommand (package:flutter_tools/src/runner/flutter_command.dart:1322:9)
#1 FlutterCommand.verifyThenRunCommand (package:flutter_tools/src/runner/flutter_command.dart:1148:11)
<asynchronous suspension>
#2 FlutterCommand.run.<anonymous closure> (package:flutter_tools/src/runner/flutter_command.dart:1043:27)
<asynchronous suspension>
#3 AppContext.run.<anonymous closure> (package:flutter_tools/src/base/context.dart:150:19)
<asynchronous suspension>
#4 CommandRunner.runCommand (package:args/command_runner.dart:196:13)
<asynchronous suspension>
#5 FlutterCommandRunner.runCommand.<anonymous closure> (package:flutter_tools/src/runner/flutter_command_runner.dart:284:9)
<asynchronous suspension>
#6 AppContext.run.<anonymous closure> (package:flutter_tools/src/base/context.dart:150:19)
<asynchronous suspension>
#7 FlutterCommandRunner.runCommand (package:flutter_tools/src/runner/flutter_command_runner.dart:232:5)
<asynchronous suspension>
#8 run.<anonymous closure>.<anonymous closure> (package:flutter_tools/runner.dart:62:9)
<asynchronous suspension>
#9 AppContext.run.<anonymous closure> (package:flutter_tools/src/base/context.dart:150:19)
<asynchronous suspension>
#10 main (package:flutter_tools/executable.dart:91:3)
<asynchronous suspension>
[ +469 ms] ensureAnalyticsSent: 366ms
[ +10 ms] Running shutdown hooks
[ +1 ms] Shutdown hooks complete
[ +5 ms] exiting with code 1
顺便说一句。 * 告诉我“ 看起来您的帖子主要是代码；请添加更多细节。”但我无法解释更多。有人知道如何绕过这个问题吗？
【问题讨论】：