无法为颤振模拟器构建应用程序

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【中文标题】无法为颤振模拟器构建应用程序【英文标题】：Could not build application for the simulator for flutter 【发布时间】：2021-01-23 13:42:39 【问题描述】：

我已经做了所有的事情，并在 pod 文件中将 ios 版本更改为 10，但仍然出现错误。

base) Gopis-MacBook-Pro:studyhall gopichand$ flutter run
Launching lib/main.dart on iPhone 11 in debug mode...
 
Running pod install...                                              8.4s
Running Xcode build...                                                  
 └─Compiling, linking and signing...                         5.0s
Xcode build done.                                           16.4s
Failed to build iOS app
Error output from Xcode build:
↳
    ** BUILD FAILED **

Xcode 的输出：

↳
    /Users/gopichand/Library/Developer/Xcode/DerivedData/Runner-akyazhjaclkrdsdykcdxdgdzdeof/Build/Intermediates
    .noindex/Runner.build/Debug-iphonesimulator/Runner.build/Script-FD4D52F9DFAD0D40F508D02D.sh: line 2:
    /Users/gopichand/Desktop/studyhall/ios/Pods/Target Support Files/Pods-Runner/Pods-Runner-frameworks.sh:
    Permission denied
    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 14.0.99. (in target 'GoogleUtilities' 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 14.0.99. (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 14.0.99. (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 14.0.99. (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 14.0.99. (in target 'nanopb' 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 14.0.99. (in target 'Toast' 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 14.0.99. (in target 'GTMSessionFetcher' 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 14.0.99. (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 14.0.99. (in target 'GoogleDataTransport' 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 14.0.99. (in target 'fluttertoast' 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 14.0.99. (in target 'FirebaseCoreDiagnostics' 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 14.0.99. (in target 'FirebaseCore' 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 14.0.99. (in target 'FirebaseAuth' 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 14.0.99. (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 14.0.99. (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 14.0.99. (in target 'FirebaseFirestore' 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 14.0.99. (in target 'firebase_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 14.0.99. (in target 'cloud_firestore' 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 14.0.99. (in target 'firebase_auth' 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 14.0.99. (in target 'FirebaseCoreDiagnosticsInterop' 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 14.0.99. (in target 'FirebaseAuthInterop' 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 14.0.99. (in target 'Flutter' 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 14.0.99. (in target 'Firebase' from project 'Pods')

Could not build the application for the simulator.
Error launching application on iPhone 11.

【问题讨论】：

【参考方案1】：

由于多种原因，可能会发生此错误。

首先，它可能是由于一些本机错误而发生的，这可以通过使用 ⌘ + B 在 Xcode 中构建应用程序来发现。如果是这种情况，那么您可以解决错误并尝试在 Xcode 本身中构建应用程序。如果它在构建过程中成功，那么您的应用将从模拟器中运行。

其次，如果尚未完成，请尝试从 Xcode 更改 iOS 版本。

第三，它可能是由于 pod 中的一些变化而发生的。要解决此问题，请执行以下步骤：

rm ios/Podfile

flutter pub get 获取包裹。

从目录中的ios文件夹中删除Pods文件夹。

cd ios 然后pod install

flutter clean

运行项目。 （如果您使用的是 VSCode，请按F5）

希望这能解决您的问题。

【讨论】：

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