这是一个与CocoaPods相关的错误。如果它在本地工作正常，错误应该在XcodeCloud上，并应该使用ci_post_clone. sh解决。
在我的例子中：
1.创建ci_post_clone. sh
1.在ci_post_clone. sh中放置pod decide和pod update
我就是这样消除了这个错误。
ci_post_clone. sh是Xcode Cloud在克隆Git仓库后运行的自定义克隆后构建脚本。
我使用以下URL作为参考：

• https://developer.apple.com/forums/thread/710440
• https://rodydavis.com/posts/flutter-and-xcode-cloud/

Flutter，但以防万一，我将包括一个成功的ci_post_clone. sh。

#!/bin/sh

# The default execution directory of this script is the ci_scripts directory.
cd $CI_WORKSPACE # change working directory to the root of your cloned repo.

# Install Flutter using git.
git clone https://github.com/flutter/flutter.git --depth 1 -b stable $HOME/flutter
export PATH="$PATH:$HOME/flutter/bin"

# Install Flutter artifacts for iOS (--ios), or macOS (--macos) platforms.
flutter precache --ios

# Install Flutter dependencies.
flutter pub get

# Install CocoaPods using Homebrew.
HOMEBREW_NO_AUTO_UPDATE=1 # disable homebrew's automatic updates.
brew install cocoapods

cd ios
pod deintegrate
# Install CocoaPods dependencies.
pod update # run `pod install` in the `ios` directory.

flutter build ios --release --no-codesign
exit 0