使用Xcode 16 执行pod init 后报告如下错误：
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### Command
```
/usr/local/bin/pod init
```
### Report
* What did you do?
* What did you expect to happen?
* What happened instead?
### Stack
```
CocoaPods : 1.15.2
Ruby : ruby 2.6.10p210 (2022-04-12 revision 67958) [universal.x86_64-darwin24]
RubyGems : 3.0.3.1
Host : macOS 15.0.1 (24A348)
Xcode : 16.0 (16A242d)
Git : git version 2.39.5 (Apple Git-154)
Ruby lib dir : /System/Library/Frameworks/Ruby.framework/Versions/2.6/usr/lib
Repositories : aliyun-aliyun-specs - git - https://github.com/aliyun/aliyun-specs.git @ 0f95d1036be7ef8828f737c2833014d2c2a30685
cocoapods - git - https://github.com/CocoaPods/Specs.git @ f9c6b97e2de41e33fcb8e5e59013f5eb3f6f3818
master - git - https://github.com/CocoaPods/Specs.git @ 4ae331aefd7875584ff04cef71d0450389badd71
RXRedditSDK - git - https://github.com/ruixueyun/RXRedditSDK.git @ 2abc726a53ee67704560dcf38df8a5530803d6cc
trunk - CDN - https://cdn.cocoapods.org/
tsinghua-git-cocoapods - git - https://mirrors.tuna.tsinghua.edu.cn/git/CocoaPods/Specs.git @ 126898823c87ccc45f8d77abb3b7f3816e344791
```
### Plugins
```
cocoapods-deintegrate : 1.0.5
cocoapods-plugins : 1.0.0
cocoapods-search : 1.0.1
cocoapods-trunk : 1.6.0
cocoapods-try : 1.2.0
```
### Error
```
RuntimeError - `PBXGroup` attempted to initialize an object with unknown ISA `PBXFileSystemSynchronizedRootGroup` from attributes: `{"isa"=>"PBXFileSystemSynchronizedRootGroup", "exceptions"=>["D00666F12CB910EA0019E6AE"], "path"=>"test1111", "sourceTree"=>"<group>"}`
If this ISA was generated by Xcode please file an issue: https://github.com/CocoaPods/Xcodeproj/issues/new
/Library/Ruby/Gems/2.6.0/gems/xcodeproj-1.24.0/lib/xcodeproj/project/object.rb:359:in `rescue in object_with_uuid'
/Library/Ruby/Gems/2.6.0/gems/xcodeproj-1.24.0/lib/xcodeproj/project/object.rb:349:in `object_with_uuid'
/Library/Ruby/Gems/2.6.0/gems/xcodeproj-1.24.0/lib/xcodeproj/project/object.rb:300:in `block (2 levels) in configure_with_plist'
/Library/Ruby/Gems/2.6.0/gems/xcodeproj-1.24.0/lib/xcodeproj/project/object.rb:299:in `each'
/Library/Ruby/Gems/2.6.0/gems/xcodeproj-1.24.0/lib/xcodeproj/project/object.rb:299:in `block in configure_with_plist'
/Library/Ruby/Gems/2.6.0/gems/xcodeproj-1.24.0/lib/xcodeproj/project/object.rb:296:in `each'
/Library/Ruby/Gems/2.6.0/gems/xcodeproj-1.24.0/lib/xcodeproj/project/object.rb:296:in `configure_with_plist'
/Library/Ruby/Gems/2.6.0/gems/xcodeproj-1.24.0/lib/xcodeproj/project.rb:272:in `new_from_plist'
/Library/Ruby/Gems/2.6.0/gems/xcodeproj-1.24.0/lib/xcodeproj/project/object.rb:350:in `object_with_uuid'
/Library/Ruby/Gems/2.6.0/gems/xcodeproj-1.24.0/lib/xcodeproj/project/object.rb:290:in `block in configure_with_plist'
/Library/Ruby/Gems/2.6.0/gems/xcodeproj-1.24.0/lib/xcodeproj/project/object.rb:287:in `each'
/Library/Ruby/Gems/2.6.0/gems/xcodeproj-1.24.0/lib/xcodeproj/project/object.rb:287:in `configure_with_plist'
/Library/Ruby/Gems/2.6.0/gems/xcodeproj-1.24.0/lib/xcodeproj/project.rb:272:in `new_from_plist'
/Library/Ruby/Gems/2.6.0/gems/xcodeproj-1.24.0/lib/xcodeproj/project.rb:213:in `initialize_from_file'
/Library/Ruby/Gems/2.6.0/gems/xcodeproj-1.24.0/lib/xcodeproj/project.rb:113:in `open'
/Library/Ruby/Gems/2.6.0/gems/cocoapods-1.15.2/lib/cocoapods/command/init.rb:41:in `validate!'
/Library/Ruby/Gems/2.6.0/gems/claide-1.1.0/lib/claide/command.rb:333:in `run'
/Library/Ruby/Gems/2.6.0/gems/cocoapods-1.15.2/lib/cocoapods/command.rb:52:in `run'
/Library/Ruby/Gems/2.6.0/gems/cocoapods-1.15.2/bin/pod:55:in `<top (required)>'
/usr/local/bin/pod:23:in `load'
/usr/local/bin/pod:23:in `<main>'
```
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[!] Oh no, an error occurred.
Search for existing GitHub issues similar to yours:
https://github.com/CocoaPods/CocoaPods/search?q=%60PBXGroup%60+attempted+to+initialize+an+object+with+unknown+ISA+%60PBXFileSystemSynchronizedRootGroup%60+from+attributes%3A+%60%7B%22isa%22%3D%3E%22PBXFileSystemSynchronizedRootGroup%22%2C+%22exceptions%22%3D%3E%5B%22D00666F12CB910EA0019E6AE%22%5D%2C+%22path%22%3D%3E%22test1111%22%2C+%22sourceTree%22%3D%3E%22%3Cgroup%3E%22%7D%60%0AIf+this+ISA+was+generated+by+Xcode+please+file+an+issue%3A+https%3A%2F%2Fgithub.com%2FCocoaPods%2FXcodeproj%2Fissues%2Fnew&type=Issues
If none exists, create a ticket, with the template displayed above, on:
https://github.com/CocoaPods/CocoaPods/issues/new
Be sure to first read the contributing guide for details on how to properly submit a ticket:
https://github.com/CocoaPods/CocoaPods/blob/master/CONTRIBUTING.md
Don't forget to anonymize any private data!
Looking for related issues on cocoapods/cocoapods...
Searching for inspections failed: undefined method `map' for nil:NilClass
解决方式：
步骤 1：在Xcode中转换项目文件夹为组
打开你的 Xcode 项目。
-
在左侧的项目导航器中，选择项目中所有的文件夹，右键点击项目文件夹。
（注意：在Xcode16之前的工程中类似于Resources这类原本就使用Folder类型的文件夹无需选中，仍使用Folder类型即可）
image.png 选择“Convert to Group”（转换为组）。
步骤 2：查看项目文件内容
- 在项目导航器中，右键点击 projectname.xcodeproj 文件。
2.选择"Show in Finder" - 选择“Show Package Contents”（显示包内容）。
步骤 3：编辑 project.pbxproj 文件
- 找到并打开 project.pbxproj 文件，使用文本编辑器（如 TextEdit 或 VS Code）。
- 删除以下两行：
minimizedProjectReferenceProxies = 1;
preferredProjectObjectVersion = 77;
- 更新以下行：
objectVersion = 77;
修改为：
objectVersion = 56;
步骤 4：保存更改并重新运行 CocoaPods
- 保存 project.pbxproj 文件的更改。
- 返回终端，导航到你的项目目录。
- 运行以下命令：
pod init
pod install
