仅在 iOS 17 设备以下遇到错误“线程 1：EXC_BAD_ACCESS（代码 = 1，地址 = 0x0）”

Question

我刚刚将 XCode 更新到版本 15，遇到此错误（仅限 17 以下的 iOS 版本）\xc2\xa0

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Thread 1: EXC_BAD_ACCESS (code=1, address=0x0)\n

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显示此错误的代码（PathMonitorConectivityProvider.swift）：

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当我从 XCode 运行代码时（iOS 设备版本是 iOS 16.4），以下代码中出现异常。

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import Foundation\nimport Network\n\n@available(iOS 12, *)\npublic class PathMonitorConnectivityProvider: NSObject, ConnectivityProvider {\n\n  private let queue = DispatchQueue.global(qos: .background)\n\n  private var _pathMonitor: NWPathMonitor?\n\n  public var currentConnectivityType: ConnectivityType {\n    let path = ensurePathMonitor().currentPath\n    // .satisfied means that the network is available\n    if path.status == .satisfied {\n      if path.usesInterfaceType(.wifi) {\n        return .wifi\n      } else if path.usesInterfaceType(.cellular) {\n        return .cellular\n      } else if path.usesInterfaceType(.wiredEthernet) {\n        // .wiredEthernet is available in simulator\n        // but for consistency it is probably correct to report .wifi\n        return .wifi\n      } else if path.usesInterfaceType(.other) {\n        return .other\n      }\n    }\n    return .none\n  }\n\n  public var connectivityUpdateHandler: ConnectivityUpdateHandler?\n\n  override init() {\n    super.init()\n    _ = ensurePathMonitor()\n  }\n\n  public func start() {\n    _ = ensurePathMonitor()\n  }\n\n  public func stop() {\n    _pathMonitor?.cancel()\n    _pathMonitor = nil\n  }\n\n  @discardableResult\n  private func ensurePathMonitor() -> NWPathMonitor {\n    if (_pathMonitor == nil) {\n      let pathMonitor = NWPathMonitor()\n      pathMonitor.start(queue: queue)\n      pathMonitor.pathUpdateHandler = pathUpdateHandler\n      _pathMonitor = pathMonitor\n    }\n    return _pathMonitor!\n  }\n\n  private func pathUpdateHandler(path: NWPath) {\n    connectivityUpdateHandler?(currentConnectivityType)\n  }\n}\n

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错误的屏幕截图

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另外 Flutter doctor 结果：

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Doctor summary (to see all details, run flutter doctor -v):\n[\xe2\x9c\x93] Flutter (Channel stable, 3.13.4, on macOS 13.5.2 22G91 darwin-x64, locale en-LK)\n[\xe2\x9c\x93] Android toolchain - develop for Android devices (Android SDK version 33.0.1)\n[\xe2\x9c\x93] Xcode - develop for iOS and macOS (Xcode 15.0)\n[\xe2\x9c\x93] Chrome - develop for the web\n[\xe2\x9c\x93] Android Studio (version 2022.1)\n[\xe2\x9c\x93] IntelliJ IDEA Community Edition (version 2022.3.2)\n[\xe2\x9c\x93] VS Code (version 1.82.2)\n[\xe2\x9c\x93] Connected device (4 available)\n[\xe2\x9c\x93] Network resources\n\n\xe2\x80\xa2 No issues found!\n

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另外AppDelegate.swift：

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import UIKit\nimport Flutter\nimport GoogleMaps\n\n@UIApplicationMain\n@objc class AppDelegate: FlutterAppDelegate {\n  override func application(\n    _ application: UIApplication,\n    didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?\n  ) -> Bool {\n    GMSServices.provideAPIKey("AIzaSyB0SHZK3ngwOu0r26fm3pOrhKumXS7XdHY")\n    GeneratedPluginRegistrant.register(with: self)\n    return super.application(application, didFinishLaunchingWithOptions: launchOptions)\n  }\n}\n

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Answer 1

解决方案是升级 Pods 项目上的所有库，包括Flutter从IOS Deployment Target 11.0到 版本12.0或更高版本。由于某些原因，XCode 15 会将所有版本降级到 9.0 或 11.0，这将导致您的项目混乱并出现类似这样的奇怪错误。

Answer 2

我在 Xcode 15 中遇到了同样的问题，事实上，将iOS 部署目标从 11.0 更改为 12.0 为我解决了这个问题。但是，没有必要为每个包手动执行此操作 - 您只需将脚本添加到 Podfile 即可：

post_install do |installer|
 installer.generated_projects.each do |project|
 project.targets.each do |target|
   target.build_configurations.each do |config|
     config.build_settings['IPHONEOS_DEPLOYMENT_TARGET'] = '12.0'
   end
 end
end

要更新您的 Pod，请在项目的 ios 文件夹中使用以下命令：

pod cache clean --all
pod deintegrate
rm -f Podfile.lock
pod install --repo-update

PS 明年当我们获得 Xcode 16 和 iOS 18 时，准备好再次将其更改为 13.0 =)