为什么我的 Flutter 应用程序无法在 iPhone 上运行？

Question

我在模拟器上成功运行了我的应用程序（iPhone 12，iOS 14.5），但是当它在真正的 iPhone 11 Pro Max（iOS 14.7.1）上运行时，我只面临黑屏。 这是来自 Xcode 的 output：

2021-09-16 18:48:00.155232+0300 Runner[2396:1009680] Metal API Validation Enabled 
2021-09-16 18:48:00.244991+0300 Runner[2396:1009680] Could not load the "LaunchImage" image referenced from a nib in the bundle with identifier "xxx.yyy.zzz" 
2021-09-16 18:48:00.353909+0300 Runner[2396:1009946] [VERBOSE-2:shell.cc(93)] Dart Error: Can't load Kernel binary: Invalid kernel binary format version. 
2021-09-16 18:48:00.354015+0300 Runner[2396:1009946] [VERBOSE-2:dart_isolate.cc(170)] Could not prepare isolate. 
2021-09-16 18:48:00.354185+0300 Runner[2396:1009946] [VERBOSE-2:runtime_controller.cc(382)] Could not create root isolate. 
2021-09-16 18:48:00.354213+0300 Runner[2396:1009946] [VERBOSE-2:shell.cc(576)] Could not launch engine with configuration. 
2021-09-16 18:48:00.367242+0300 Runner[2396:1009960] flutter: Observatory listening on http://127.0.0.1:54273/PrvtvZOQ8Wc=/

Flutter博士：

[✓] Flutter (Channel stable, 2.2.3, on macOS 11.5.2 20G95 darwin-x64, locale
    ru-BY)
[✗] Android toolchain - develop for Android devices
    ✗ Unable to locate Android SDK.
      Install Android Studio from:
      https://developer.android.com/studio/index.html
      On first launch it will assist you in installing the Android SDK
      components.
      (or visit https://flutter.dev/docs/get-started/install/macos#android-setup
      for detailed instructions).
      If the Android SDK has been installed to a custom location, please use
      flutter config --android-sdk to update to that location.

[✓] Xcode - develop for iOS and macOS
[✗] Chrome - develop for the web (Cannot find Chrome executable at
    /Applications/Google Chrome.app/Contents/MacOS/Google Chrome)
    ! Cannot find Chrome. Try setting CHROME_EXECUTABLE to a Chrome executable.
[!] Android Studio (not installed)
[✓] Connected device (2 available)

Xcode 12.5.1

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更新

要解决此问题，请删除 run rm -rf ~/flutter/bin/cache 。 然后运行flutter run （您应该从终端而不是 IDE 运行您的应用程序，以便 Flutter 下载丢失的文件）。 它现在以某种方式起作用。

Answer 1

使用rm -rf ~/flutter/bin/cache删除缓存对我有用。 此问题似乎是由错误的 Flutter 安装引起的。 删除缓存后运行flutter pub get应该再次下载包并重建项目。