`<PBX...`> ` 试图用未知的 UUID 初始化一个对象。 这可能是合并的结果，未知的 UUID 被丢弃

Question

我购买了一台新的 Macbook Air 2020，我想使用 iOS 模拟器测试我的 Flutter 应用程序。 但是，每次运行我的应用程序时，都会在此处显示错误。 我的 Flutter 应用程序在 Android 部分运行良好，但我也想在 iOS 模拟器上看到它。 我正在使用 Android Studio（用于 Flutter Dev）并且我的 Mac 上安装了 XCode 12。 在这里我给出了错误：

Launching lib/main.dart on iPhone 8 in debug mode...
Running pod install...
CocoaPods' output:
↳
Error running pod install
Error launching application on iPhone 8.
  Preparing

Analyzing dependencies

Inspecting targets to integrate
  Using `ARCHS` setting to build architectures of target `Pods-Runner`: (``)

Fetching external sources
-> Fetching podspec for `Flutter` from `Flutter`
-> Fetching podspec for `firebase_auth` from `.symlinks/plugins/firebase_auth/ios`
firebase_auth: Using Firebase SDK version '6.26.0' defined in 'firebase_core'
-> Fetching podspec for `firebase_core` from `.symlinks/plugins/firebase_core/ios`
firebase_core: Using Firebase SDK version '6.26.0' defined in 'firebase_core'
-> Fetching podspec for `firebase_database` from `.symlinks/plugins/firebase_database/ios`
firebase_database: Using Firebase SDK version '6.26.0' defined in 'firebase_core'
-> Fetching podspec for `firebase_ml_vision` from `.symlinks/plugins/firebase_ml_vision/ios`
-> Fetching podspec for `image_picker` from `.symlinks/plugins/image_picker/ios`
-> Fetching podspec for `url_launcher` from `.symlinks/plugins/url_launcher/ios`

Resolving dependencies of `Podfile`
  CDN: trunk Relative path: CocoaPods-version.yml exists! Returning local because checking is only perfomed in repo update
  CDN: trunk Relative path: all_pods_versions_0_3_5.txt exists! Returning local because checking is only perfomed in repo update
  CDN: trunk Relative path: Specs/0/3/5/Firebase/6.32.2/Firebase.podspec.json exists! Returning local because checking is only perfomed in repo update
  CDN: trunk Relative path: Specs/0/3/5/Firebase/1.0.0/Firebase.podspec.json exists! Returning local because checking is only perfomed in repo update
  CDN: trunk Relative path: Specs/0/3/5/Firebase/1.0.5/Firebase.podspec.json exists! Returning local because checking is only perfomed in repo update
  CDN: trunk Relative path: Specs/0/3/5/Firebase/1.0.7/Firebase.podspec.json exists! Returning local because checking is only perfomed in repo update
  CDN: trunk Relative path: Specs/0/3/5/Firebase/1.0.9/Firebase.podspec.json exists! Returning local because checking is only perfomed in repo update
  CDN: trunk Relative path: Specs/0/3/5/Firebase/1.1.0/Firebase.podspec.json exists! Returning local because checking is only perfomed in repo update
  CDN: trunk Relative path: Specs/0/3/5/Firebase/1.1.1/Firebase.podspec.json exists! Returning local because checking is only perfomed in repo update
  CDN: trunk Relative path: Specs/0/3/5/Firebase/1.1.2/Firebase.podspec.json exists! Returning local because checking is only perfomed in repo update
  CDN: trunk Relative path: Specs/0/3/5/Firebase/1.1.3/Firebase.podspec.json exists! Returning local because checking is only perfomed in repo update
  CDN: trunk Relative path: Specs/0/3/5/Firebase/1.1.4/Firebase.podspec.json exists! Returning local because checking is only perfomed in repo update
  CDN: trunk Relative path: Specs/0/3/5/Firebase/1.1.5/Firebase.podspec.json exists! Returning local because checking is only perfomed in repo update
  CDN: trunk Relative path: Specs/0/3/5/Firebase/1.1.6/Firebase.podspec.json exists! Returning local because checking is only perfomed in repo update
  CDN: trunk Relative path: Specs/0/3/5/Firebase/1.1.7/Firebase.podspec.json exists! Returning local because checking is only perfomed in repo update
  CDN: trunk Relative path: Specs/0/3/5/Firebase/1.1.9/Firebase.podspec.json exists! Returning local because checking is only perfomed in repo update
  CDN: trunk Relative path: Specs/0/3/5/Firebase/1.1.10/Firebase.podspec.json exists! Returning local because checking is only perfomed in repo update
  CDN: trunk Relative path: Specs/0/3/5/Firebase/1.1.11/Firebase.podspec.json exists! Returning local because checking is only perfomed in repo update
  CDN: trunk Relative path: Specs/0/3/5/Firebase/1.1.12/Firebase.podspec.json exists! Returning local because checking is only perfomed in repo update
  CDN: trunk Relative path: Specs/0/3/5/Firebase/1.2.0/Firebase.podspec.json exists! Returning local because checking is only perfomed in repo update
  CDN: trunk Relative path: Specs/0/3/5/Firebase/1.2.1/Firebase.podspec.json exists! Returning local because checking is only perfomed in repo update
  CDN: trunk Relative path: Specs/0/3/5/Firebase/1.2.2/Firebase.podspec.json exists! Returning local because checking is only perfomed in repo update
  CDN: trunk Relative path: Specs/0/3/5/Firebase/1.2.3/Firebase.podspec.json exists! Returning local because checking is only perfomed in repo update
  CDN: trunk Relative path: Specs/0/3/5/Firebase/2.0.0/Firebase.podspec.json exists! Returning local because checking is only perfomed in repo update
  CDN: trunk Relative path: Specs/0/3/5/Firebase/2.0.1/Firebase.podspec.json exists! Returning local because checking is only perfomed in repo update
  CDN: trunk Relative path: Specs/0/3/5/Firebase/2.0.2/Firebase.podspec.json exists! Returning local because checking is only perfomed in repo update
  CDN: trunk Relative path: Specs/0/3/5/Firebase/2.0.3/Firebase.podspec.json exists! Returning local because checking is only perfomed in repo update
  CDN: trunk Relative path: Specs/0/3/5/Firebase/2.1.0/Firebase.podspec.json exists! Returning local because checking is only perfomed in repo update
  CDN: trunk Relative path: Specs/0/3/5/Firebase/2.1.1/Firebase.podspec.json exists! Returning local because checking is only perfomed in repo update
  CDN: trunk Relative path: Specs/0/3/5/Firebase/2.1.2/Firebase.podspec.json exists! Returning local because checking is only perfomed in repo update
  CDN: trunk Relative path: Specs/0/3/5/Firebase/2.2.0/Firebase.podspec.json exists! Returning local because checking is only perfomed in repo update
  CDN: trunk Relative path: Specs/0/3/5/Firebase/2.2.1/Firebase.podspec.json exists! Returning local because checking is only perfomed in repo update
  CDN: trunk Relative path: Specs/0/3/5/Firebase/2.2.2/Firebase.podspec.json exists! Returning local because checking is only perfomed in repo update
  CDN: trunk Relative path: Specs/0/3/5/Firebase/2.3.0/Firebase.podspec.json exists! Returning local because checking is only perfomed in repo update
  CDN: trunk Relative path: Specs/0/3/5/Firebase/2.3.1/Firebase.podspec.json exists! Returning local because checking is only perfomed in repo update
  CDN: trunk Relative path: Specs/0/3/5/Firebase/2.3.2/Firebase.podspec.json exists! Returning local because checking is only perfomed in repo update
  CDN: trunk Relative path: Specs/0/3/5/Firebase/2.3.3/Firebase.podspec.json exists! Returning local because checking is only perfomed in repo update
  CDN: trunk Relative path: Specs/0/3/5/Firebase/2.4.0/Firebase.podspec.json exists! Returning local because checking is only perfomed in repo update
  CDN: trunk Relative path: Specs/0/3/5/Firebase/2.4.1/Firebase.podspec.json exists! Returning local because checking is only perfomed in repo update
  CDN: trunk Relative path: Specs/0/3/5/Firebase/2.4.1.1/Firebase.podspec.json exists! Returning local because checking is only perfomed in repo update
  CDN: trunk Relative path: Specs/0/3/5/Firebase/2.4.2/Firebase.podspec.json exists! Returning local because checking is only perfomed in repo update
  CDN: trunk Relative path: Specs/0/3/5/Firebase/2.4.3/Firebase.podspec.json exists! Returning local because checking is only perfomed in repo update
  CDN: trunk Relative path: Specs/0/3/5/Firebase/2.5.0/Firebase.podspec.json exists! Returning local because checking is only perfomed in repo update
  CDN: trunk Relative path: Specs/0/3/5/Firebase/2.5.1/Firebase.podspec.json exists! Returning local because checking is only perfomed in repo update
  CDN: trunk Relative path: Specs/0/3/5/Firebase/3.2.0/Firebase.podspec.json exists! Returning local because checking is only perfomed in repo update
  CDN: trunk Relative path: Specs/0/3/5/Firebase/3.2.1/Firebase.podspec.json exists! Returning local because checking is only perfomed in repo update
  CDN: trunk Relative path: Specs/0/3/5/Firebase/3.3.0/Firebase.podspec.json exists! Returning local because checking is only perfomed in repo update
  CDN: trunk Relative path: Specs/0/3/5/Firebase/3.4.0/Firebase.podspec.json exists! Returning local because checking is only perfomed in repo update
  CDN: trunk Relative path: Specs/0/3/5/Firebase/3.5.0/Firebase.podspec.json exists! Returning local because checking is only perfomed in repo update
  CDN: trunk Relative path: Specs/0/3/5/Firebase/3.5.1/Firebase.podspec.json exists! Returning local because checking is only perfomed in repo update
  CDN: trunk Relative path: Specs/0/3/5/Firebase/3.5.2/Firebase.podspec.json exists! Returning local because checking is only perfomed in repo update
  CDN: trunk Relative path: Specs/0/3/5/Firebase/3.6.0/Firebase.podspec.json exists! Returning local because checking is only perfomed in repo update
  CDN: trunk Relative path: Specs/0/3/5/Firebase/3.7.0/Firebase.podspec.json exists! Returning local because checking is only perfomed in repo update
  CDN: trunk Relative path: Specs/0/3/5/Firebase/3.7.1/Firebase.podspec.json exists! Returning local because checking is only perfomed in repo update
  CDN: trunk Relative path: Specs/0/3/5/Firebase/3.8.0/Firebase.podspec.json exists! Returning local because checking is only perfomed in repo update
  CDN: trunk Relative path: Specs/0/3/5/Firebase/3.9.0/Firebase.podspec.json exists! Returning local because checking is only perfomed in repo update
  CDN: trunk Relative path: Specs/0/3/5/Firebase/3.10.0/Firebase.podspec.json exists! Returning local because checking is only perfomed in repo update
  CDN: trunk Relative path: Specs/0/3/5/Firebase/3.11.0/Firebase.podspec.json exists! Returning local because checking is only perfomed in repo update
  CDN: trunk Relative path: Specs/0/3/5/Firebase/3.11.1/Firebase.podspec.json exists! Returning local because checking is only perfomed in repo update
  CDN: trunk Relative path: Specs/0/3/5/Firebase/3.12.0/Firebase.podspec.json exists! Returning local because checking is only perfomed in repo update
  CDN: trunk Relative path: Specs/0/3/5/Firebase/3.13.0/Firebase.podspec.json exists! Returning local because checking is only perfomed in repo update
  CDN: trunk Relative path: Specs/0/3/5/Firebase/3.14.0/Firebase.podspec.json exists! Returning local because checking is only perfomed in repo update
  CDN: trunk Relative path: Specs/0/3/5/Firebase/3.15.0/Firebase.podspec.json exists! Returning local because checking is only perfomed in repo update
  CDN: trunk Relative path: Specs/0/3/5/Firebase/3.16.0/Firebase.podspec.json exists! Returning local because checking is only perfomed in repo update
  CDN: trunk Relative path: Specs/0/3/5/Firebase/3.17.0/Firebase.podspec.json exists! Returning local because checking is only perfomed in repo update
  CDN: trunk Relative path: Specs/0/3/5/Firebase/4.0.0/Firebase.podspec.json exists! Returning local because checking is only perfomed in repo update
  CDN: trunk Relative path: Specs/0/3/5/Firebase/4.0.1/Firebase.podspec.json exists! Returning local because checking is only perfomed in repo update
  CDN: trunk Relative path: Specs/0/3/5/Firebase/4.0.2/Firebase.podspec.json exists! Returning local because checking is only perfomed in repo update
  CDN: trunk Relative path: Specs/0/3/5/Firebase/4.0.3/Firebase.podspec.json exists! Returning local because checking is only perfomed in repo update
  CDN: trunk Relative path: Specs/0/3/5/Firebase/4.0.4/Firebase.podspec.json exists! Returning local because checking is only perfomed in repo update
  CDN: trunk Relative path: Specs/0/3/5/Firebase/4.1.0/Firebase.podspec.json exists! Returning local because checking is only perfomed in repo update
  CDN: trunk Relative path: Specs/0/3/5/Firebase/4.1.1/Firebase.podspec.json exists! Returning local because checking is only perfomed in repo update
  CDN: trunk Relative path: Specs/0/3/5/Firebase/4.2.0/Firebase.podspec.json exists! Returning local because checking is only perfomed in repo update
  CDN: trunk Relative path: Specs/0/3/5/Firebase/4.3.0/Firebase.podspec.json exists! Returning local because checking is only perfomed in repo update
  CDN: trunk Relative path: Specs/0/3/5/Firebase/4.4.0/Firebase.podspec.json exists! Returning local because checking is only perfomed in repo update
  CDN: trunk Relative path: Specs/0/3/5/Firebase/4.5.0/Firebase.podspec.json exists! Returning local because checking is only perfomed in repo update
  CDN: trunk Relative path: Specs/0/3/5/Firebase/4.6.0/Firebase.podspec.json exists! Returning local because checking is only perfomed in repo update
  CDN: trunk Relative path: Specs/0/3/5/Firebase/4.7.0/Firebase.podspec.json exists! Returning local because checking is only perfomed in repo update
  CDN: trunk Relative path: Specs/0/3/5/Firebase/4.8.0/Firebase.podspec.json exists! Returning local because checking is only perfomed in repo update
  CDN: trunk Relative path: Specs/0/3/5/Firebase/4.8.2/Firebase.podspec.json exists! Returning local because checking is only perfomed in repo update
  CDN: trunk Relative path: Specs/0/3/5/Firebase/4.9.0/Firebase.podspec.json exists! Returning local because checking is only perfomed in repo update
  CDN: trunk Relative path: Specs/0/3/5/Firebase/4.10.0/Firebase.podspec.json exists! Returning local because checking is only perfomed in repo update
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  CDN: trunk Relative path: Specs/0/3/5/Firebase/4.11.0/Firebase.podspec.json exists! Returning local because checking is only perfomed in repo update
  CDN: trunk Relative path: Specs/0/3/5/Firebase/4.12.0/Firebase.podspec.json exists! Returning local because checking is only perfomed in repo update
  CDN: trunk Relative path: Specs/0/3/5/Firebase/4.13.0/Firebase.podspec.json exists! Returning local because checking is only perfomed in repo update
  CDN: trunk Relative path: Specs/0/3/5/Firebase/5.0.0/Firebase.podspec.json exists! Returning local because checking is only perfomed in repo update
  CDN: trunk Relative path: Specs/0/3/5/Firebase/5.0.1/Firebase.podspec.json exists! Returning local because checking is only perfomed in repo update
  CDN: trunk Relative path: Specs/0/3/5/Firebase/5.1.0/Firebase.podspec.json exists! Returning local because checking is only perfomed in repo update
  CDN: trunk Relative path: Specs/0/3/5/Firebase/5.2.0/Firebase.podspec.json exists! Returning local because checking is only perfomed in repo update
  CDN: trunk Relative path: Specs/0/3/5/Firebase/5.3.0/Firebase.podspec.json exists! Returning local because checking is only perfomed in repo update
  CDN: trunk Relative path: Specs/0/3/5/Firebase/5.4.0/Firebase.podspec.json exists! Returning local because checking is only perfomed in repo update
  CDN: trunk Relative path: Specs/0/3/5/Firebase/5.4.1/Firebase.podspec.json exists! Returning local because checking is only perfomed in repo update
  CDN: trunk Relative path: Specs/0/3/5/Firebase/5.5.0/Firebase.podspec.json exists! Returning local because checking is only perfomed in repo update
  CDN: trunk Relative path: Specs/0/3/5/Firebase/5.6.0/Firebase.podspec.json exists! Returning local because checking is only perfomed in repo update
  CDN: trunk Relative path: Specs/0/3/5/Firebase/5.7.0/Firebase.podspec.json exists! Returning local because checking is only perfomed in repo update
  CDN: trunk Relative path: Specs/0/3/5/Firebase/5.8.0/Firebase.podspec.json exists! Returning local because checking is only perfomed in repo update
  CDN: trunk Relative path: Specs/0/3/5/Firebase/5.8.1/Firebase.podspec.json exists! Returning local because checking is only perfomed in repo update
  CDN: trunk Relative path: Specs/0/3/5/Firebase/5.9.0/Firebase.podspec.json exists! Returning local because checking is only perfomed in repo update
  CDN: trunk Relative path: Specs/0/3/5/Firebase/5.10.0/Firebase.podspec.json exists! Returning local because checking is only perfomed in repo update
  CDN: trunk Relative path: Specs/0/3/5/Firebase/5.11.0/Firebase.podspec.json exists! Returning local because checking is only perfomed in repo update
  CDN: trunk Relative path: Specs/0/3/5/Firebase/5.12.0/Firebase.podspec.json exists! Returning local because checking is only perfomed in repo update
  CDN: trunk Relative path: Specs/0/3/5/Firebase/5.13.0/Firebase.podspec.json exists! Returning local because checking is only perfomed in repo update
  CDN: trunk Relative path: Specs/0/3/5/Firebase/5.14.0/Firebase.podspec.json exists! Returning local because checking is only perfomed in repo update
  CDN: trunk Relative path: Specs/0/3/5/Firebase/5.15.0/Firebase.podspec.json exists! Returning local because checking is only perfomed in repo update
  CDN: trunk Relative path: Specs/0/3/5/Firebase/5.16.0/Firebase.podspec.json exists! Returning local because checking is only perfomed in repo update
  CDN: trunk Relative path: Specs/0/3/5/Firebase/5.17.0/Firebase.podspec.json exists! Returning local because checking is only perfomed in repo update
  CDN: trunk Relative path: Specs/0/3/5/Firebase/5.18.0/Firebase.podspec.json exists! Returning local because checking is only perfomed in repo update
  CDN: trunk Relative path: Specs/0/3/5/Firebase/5.19.0/Firebase.podspec.json exists! Returning local because checking is only perfomed in repo update
  CDN: trunk Relative path: Specs/0/3/5/Firebase/5.20.0/Firebase.podspec.json exists! Returning local because checking is only perfomed in repo update
  CDN: trunk Relative path: Specs/0/3/5/Firebase/5.20.1/Firebase.podspec.json exists! Returning local because checking is only perfomed in repo update
  CDN: trunk Relative path: Specs/0/3/5/Firebase/5.20.2/Firebase.podspec.json exists! Returning local because checking is only perfomed in repo update
  CDN: trunk Relative path: Specs/0/3/5/Firebase/6.0.0/Firebase.podspec.json exists! Returning local because checking is only perfomed in repo update
  CDN: trunk Relative path: Specs/0/3/5/Firebase/6.1.0/Firebase.podspec.json exists! Returning local because checking is only perfomed in repo update
  CDN: trunk Relative path: Specs/0/3/5/Firebase/6.2.0/Firebase.podspec.json exists! Returning local because checking is only perfomed in repo update
  CDN: trunk Relative path: Specs/0/3/5/Firebase/6.3.0/Firebase.podspec.json exists! Returning local because checking is only perfomed in repo update
  CDN: trunk Relative path: Specs/0/3/5/Firebase/6.4.0/Firebase.podspec.json exists! Returning local because checking is only perfomed in repo update
  CDN: trunk Relative path: Specs/0/3/5/Firebase/6.5.0/Firebase.podspec.json exists! Returning local because checking is only perfomed in repo update
  CDN: trunk Relative path: Specs/0/3/5/Firebase/6.6.0/Firebase.podspec.json exists! Returning local because checking is only perfomed in repo update
  CDN: trunk Relative path: Specs/0/3/5/Firebase/6.7.0/Firebase.podspec.json exists! Returning local because checking is only perfomed in repo update
  CDN: trunk Relative path: Specs/0/3/5/Firebase/6.8.0/Firebase.podspec.json exists! Returning local because checking is only perfomed in repo update
  CDN: trunk Relative path: Specs/0/3/5/Firebase/6.8.1/Firebase.podspec.json exists! Returning local because checking is only perfomed in repo update
  CDN: trunk Relative path: Specs/0/3/5/Firebase/6.9.0/Firebase.podspec.json exists! Returning local because checking is only perfomed in repo update
  CDN: trunk Relative path: Specs/0/3/5/Firebase/6.10.0/Firebase.podspec.json exists! Returning local because checking is only perfomed in repo update
  CDN: trunk Relative path: Specs/0/3/5/Firebase/6.11.0/Firebase.podspec.json exists! Returning local because checking is only perfomed in repo update
  CDN: trunk Relative path: Specs/0/3/5/Firebase/6.12.0/Firebase.podspec.json exists! Returning local because checking is only perfomed in repo update
  CDN: trunk Relative path: Specs/0/3/5/Firebase/6.13.0/Firebase.podspec.json exists! Returning local because checking is only perfomed in repo update
  CDN: trunk Relative path: Specs/0/3/5/Firebase/6.14.0/Firebase.podspec.json exists! Returning local because checking is only perfomed in repo update
  CDN: trunk Relative path: Specs/0/3/5/Firebase/6.15.0/Firebase.podspec.json exists! Returning local because checking is only perfomed in repo update
  CDN: trunk Relative path: Specs/0/3/5/Firebase/6.16.0/Firebase.podspec.json exists! Returning local because checking is only perfomed in repo update
  CDN: trunk Relative path: Specs/0/3/5/Firebase/6.17.0/Firebase.podspec.json exists! Returning local because checking is only perfomed in repo update
  CDN: trunk Relative path: Specs/0/3/5/Firebase/6.18.0/Firebase.podspec.json exists! Returning local because checking is only perfomed in repo update
  CDN: trunk Relative path: Specs/0/3/5/Firebase/6.19.0/Firebase.podspec.json exists! Returning local because checking is only perfomed in repo update
  CDN: trunk Relative path: Specs/0/3/5/Firebase/6.20.0/Firebase.podspec.json exists! Returning local because checking is only perfomed in repo update
  CDN: trunk Relative path: Specs/0/3/5/Firebase/6.21.0/Firebase.podspec.json exists! Returning local because checking is only perfomed in repo update
  CDN: trunk Relative path: Specs/0/3/5/Firebase/6.22.0/Firebase.podspec.json exists! Returning local because checking is only perfomed in repo update
  CDN: trunk Relative path: Specs/0/3/5/Firebase/6.23.0/Firebase.podspec.json exists! Returning local because checking is only perfomed in repo update
  CDN: trunk Relative path: Specs/0/3/5/Firebase/6.24.0/Firebase.podspec.json exists! Returning local because checking is only perfomed in repo update
  CDN: trunk Relative path: Specs/0/3/5/Firebase/6.25.0/Firebase.podspec.json exists! Returning local because checking is only perfomed in repo update
  CDN: trunk Relative path: Specs/0/3/5/Firebase/6.26.0/Firebase.podspec.json exists! Returning local because checking is only perfomed in repo update
  CDN: trunk Relative path: Specs/0/3/5/Firebase/6.27.0/Firebase.podspec.json exists! Returning local because checking is only perfomed in repo update
  CDN: trunk Relative path: Specs/0/3/5/Firebase/6.27.1/Firebase.podspec.json exists! Returning local because checking is only perfomed in repo update
  CDN: trunk Relative path: Specs/0/3/5/Firebase/6.28.0/Firebase.podspec.json exists! Returning local because checking is only perfomed in repo update
  CDN: trunk Relative path: Specs/0/3/5/Firebase/6.28.1/Firebase.podspec.json exists! Returning local because checking is only perfomed in repo update
  CDN: trunk Relative path: Specs/0/3/5/Firebase/6.29.0/Firebase.podspec.json exists! Returning local because checking is only perfomed in repo update
  CDN: trunk Relative path: Specs/0/3/5/Firebase/6.30.0/Firebase.podspec.json exists! Returning local because checking is only perfomed in repo update
  CDN: trunk Relative path: Specs/0/3/5/Firebase/6.31.0/Firebase.podspec.json exists! Returning local because checking is only perfomed in repo update
  CDN: trunk Relative path: Specs/0/3/5/Firebase/6.31.1/Firebase.podspec.json exists! Returning local because checking is only perfomed in repo update
  CDN: trunk Relative path: Specs/0/3/5/Firebase/6.32.0/Firebase.podspec.json exists! Returning local because checking is only perfomed in repo update
  CDN: trunk Relative path: Specs/0/3/5/Firebase/6.32.2/Firebase.podspec.json exists! Returning local because checking is only perfomed in repo update
  CDN: trunk Relative path: Specs/0/3/5/Firebase/6.26.0/Firebase.podspec.json exists! Returning local because checking is only perfomed in repo update
  CDN: trunk Relative path: Specs/0/3/5/Firebase/6.26.0/Firebase.podspec.json exists! Returning local because checking is only perfomed in repo update
  CDN: trunk Relative path: Specs/0/3/5/Firebase/6.26.0/Firebase.podspec.json exists! Returning local because checking is only perfomed in repo update
[!] CocoaPods could not find compatible versions for pod "firebase_ml_vision":
  In Podfile:
    firebase_ml_vision (from `.symlinks/plugins/firebase_ml_vision/ios`)

Specs satisfying the `firebase_ml_vision (from `.symlinks/plugins/firebase_ml_vision/ios`)` dependency were found, but they required a higher minimum deployment target.

/Library/Ruby/Gems/2.6.0/gems/molinillo-0.6.6/lib/molinillo/resolution.rb:328:in `raise_error_unless_state'
/Library/Ruby/Gems/2.6.0/gems/molinillo-0.6.6/lib/molinillo/resolution.rb:310:in `block in unwind_for_conflict'
/Library/Ruby/Gems/2.6.0/gems/molinillo-0.6.6/lib/molinillo/resolution.rb:308:in `tap'
/Library/Ruby/Gems/2.6.0/gems/molinillo-0.6.6/lib/molinillo/resolution.rb:308:in `unwind_for_conflict'
/Library/Ruby/Gems/2.6.0/gems/molinillo-0.6.6/lib/molinillo/resolution.rb:684:in `attempt_to_activate'
/Library/Ruby/Gems/2.6.0/gems/molinillo-0.6.6/lib/molinillo/resolution.rb:254:in `process_topmost_state'
/Library/Ruby/Gems/2.6.0/gems/molinillo-0.6.6/lib/molinillo/resolution.rb:182:in `resolve'
/Library/Ruby/Gems/2.6.0/gems/molinillo-0.6.6/lib/molinillo/resolver.rb:43:in `resolve'
/Library/Ruby/Gems/2.6.0/gems/cocoapods-1.8.4/lib/cocoapods/resolver.rb:94:in `resolve'
/Library/Ruby/Gems/2.6.0/gems/cocoapods-1.8.4/lib/cocoapods/installer/analyzer.rb:986:in `block in resolve_dependencies'
/Library/Ruby/Gems/2.6.0/gems/cocoapods-1.8.4/lib/cocoapods/user_interface.rb:64:in `section'
/Library/Ruby/Gems/2.6.0/gems/cocoapods-1.8.4/lib/cocoapods/installer/analyzer.rb:984:in `resolve_dependencies'
/Library/Ruby/Gems/2.6.0/gems/cocoapods-1.8.4/lib/cocoapods/installer/analyzer.rb:124:in `analyze'
/Library/Ruby/Gems/2.6.0/gems/cocoapods-1.8.4/lib/cocoapods/installer.rb:410:in `analyze'
/Library/Ruby/Gems/2.6.0/gems/cocoapods-1.8.4/lib/cocoapods/installer.rb:234:in `block in resolve_dependencies'
/Library/Ruby/Gems/2.6.0/gems/cocoapods-1.8.4/lib/cocoapods/user_interface.rb:64:in `section'
/Library/Ruby/Gems/2.6.0/gems/cocoapods-1.8.4/lib/cocoapods/installer.rb:233:in `resolve_dependencies'
/Library/Ruby/Gems/2.6.0/gems/cocoapods-1.8.4/lib/cocoapods/installer.rb:156:in `install!'
/Library/Ruby/Gems/2.6.0/gems/cocoapods-1.8.4/lib/cocoapods/command/install.rb:52:in `run'
/Library/Ruby/Gems/2.6.0/gems/claide-1.0.3/lib/claide/command.rb:334:in `run'
/Library/Ruby/Gems/2.6.0/gems/cocoapods-1.8.4/lib/cocoapods/command.rb:52:in `run'
/Library/Ruby/Gems/2.6.0/gems/cocoapods-1.8.4/bin/pod:55:in `<top (required)>'
/usr/local/bin/pod:23:in `load'
/usr/local/bin/pod:23:in `<main>'

Error output from CocoaPods:
↳

[!] `<PBXGroup UUID=`97C146E51CF9000F007C117D`>` attempted to initialize an object with an unknown UUID. `CF3B75C9A7D2FA2A4C99F110` for attribute: `children`. This can be the result of a merge and the unknown UUID is being discarded.

请帮助我，我在这里被困了将近 2 天。

Answer 1

所以经过这么多的搜索，我没有得到任何具体的解决这个问题的方法。

这些方法中的任何一种都可以为您工作，因为它也取决于您使用的当前 flutter 版本：

删除无效的缓存并尝试清理整个项目。 如果这不起作用，请尝试升级您的 Flutter 版本

或者

1. 扑干净
2. 删除 /ios/Pods
3. 删除/ios/Podfile.lock
4. 扑扑酒吧得到
5. 从 ios 文件夹中： pod install 运行