Mac升级到15.0，Xcode升级到16.0，新建项目进行pod init时报错，网上各种找都是让更新gem、ruby、cocospods等，无法解决。
最终解决方案：删除项目中自动创建的Tests、UITests，TestsTarget和UItextsTarget，重新pod init、install等
详细报错信息
### Error
```
RuntimeError - `PBXGroup` attempted to initialize an object with unknown ISA `PBXFileSystemSynchronizedRootGroup` from attributes: `{"isa"=>"PBXFileSystemSynchronizedRootGroup", "path"=>"ProtocolConnectionTests", "sourceTree"=>"<group>"}`
If this ISA was generated by Xcode please file an issue: https://github.com/CocoaPods/Xcodeproj/issues/new
/Users/hs/.rvm/rubies/ruby-3.0.0/lib/ruby/gems/3.0.0/gems/xcodeproj-1.25.1/lib/xcodeproj/project/object.rb:359:in `rescue in object_with_uuid'
/Users/hs/.rvm/rubies/ruby-3.0.0/lib/ruby/gems/3.0.0/gems/xcodeproj-1.25.1/lib/xcodeproj/project/object.rb:349:in `object_with_uuid'
/Users/hs/.rvm/rubies/ruby-3.0.0/lib/ruby/gems/3.0.0/gems/xcodeproj-1.25.1/lib/xcodeproj/project/object.rb:300:in `block (2 levels) in configure_with_plist'
/Users/hs/.rvm/rubies/ruby-3.0.0/lib/ruby/gems/3.0.0/gems/xcodeproj-1.25.1/lib/xcodeproj/project/object.rb:299:in `each'
/Users/hs/.rvm/rubies/ruby-3.0.0/lib/ruby/gems/3.0.0/gems/xcodeproj-1.25.1/lib/xcodeproj/project/object.rb:299:in `block in configure_with_plist'
/Users/hs/.rvm/rubies/ruby-3.0.0/lib/ruby/gems/3.0.0/gems/xcodeproj-1.25.1/lib/xcodeproj/project/object.rb:296:in `each'
/Users/hs/.rvm/rubies/ruby-3.0.0/lib/ruby/gems/3.0.0/gems/xcodeproj-1.25.1/lib/xcodeproj/project/object.rb:296:in `configure_with_plist'
/Users/hs/.rvm/rubies/ruby-3.0.0/lib/ruby/gems/3.0.0/gems/xcodeproj-1.25.1/lib/xcodeproj/project.rb:272:in `new_from_plist'
/Users/hs/.rvm/rubies/ruby-3.0.0/lib/ruby/gems/3.0.0/gems/xcodeproj-1.25.1/lib/xcodeproj/project/object.rb:350:in `object_with_uuid'
/Users/hs/.rvm/rubies/ruby-3.0.0/lib/ruby/gems/3.0.0/gems/xcodeproj-1.25.1/lib/xcodeproj/project/object.rb:290:in `block in configure_with_plist'
/Users/hs/.rvm/rubies/ruby-3.0.0/lib/ruby/gems/3.0.0/gems/xcodeproj-1.25.1/lib/xcodeproj/project/object.rb:287:in `each'
/Users/hs/.rvm/rubies/ruby-3.0.0/lib/ruby/gems/3.0.0/gems/xcodeproj-1.25.1/lib/xcodeproj/project/object.rb:287:in `configure_with_plist'
/Users/hs/.rvm/rubies/ruby-3.0.0/lib/ruby/gems/3.0.0/gems/xcodeproj-1.25.1/lib/xcodeproj/project.rb:272:in `new_from_plist'
/Users/hs/.rvm/rubies/ruby-3.0.0/lib/ruby/gems/3.0.0/gems/xcodeproj-1.25.1/lib/xcodeproj/project.rb:213:in `initialize_from_file'
/Users/hs/.rvm/rubies/ruby-3.0.0/lib/ruby/gems/3.0.0/gems/xcodeproj-1.25.1/lib/xcodeproj/project.rb:113:in `open'
/Users/hs/.rvm/rubies/ruby-3.0.0/lib/ruby/gems/3.0.0/gems/cocoapods-1.15.2/lib/cocoapods/installer/analyzer.rb:1194:in `block (2 levels) in inspect_targets_to_integrate'
/Users/hs/.rvm/rubies/ruby-3.0.0/lib/ruby/gems/3.0.0/gems/cocoapods-1.15.2/lib/cocoapods/installer/analyzer.rb:1193:in `each'
/Users/hs/.rvm/rubies/ruby-3.0.0/lib/ruby/gems/3.0.0/gems/cocoapods-1.15.2/lib/cocoapods/installer/analyzer.rb:1193:in `block in inspect_targets_to_integrate'
/Users/hs/.rvm/rubies/ruby-3.0.0/lib/ruby/gems/3.0.0/gems/cocoapods-1.15.2/lib/cocoapods/user_interface.rb:64:in `section'
/Users/hs/.rvm/rubies/ruby-3.0.0/lib/ruby/gems/3.0.0/gems/cocoapods-1.15.2/lib/cocoapods/installer/analyzer.rb:1188:in `inspect_targets_to_integrate'
/Users/hs/.rvm/rubies/ruby-3.0.0/lib/ruby/gems/3.0.0/gems/cocoapods-1.15.2/lib/cocoapods/installer/analyzer.rb:107:in `analyze'
/Users/hs/.rvm/rubies/ruby-3.0.0/lib/ruby/gems/3.0.0/gems/cocoapods-1.15.2/lib/cocoapods/installer.rb:422:in `analyze'
/Users/hs/.rvm/rubies/ruby-3.0.0/lib/ruby/gems/3.0.0/gems/cocoapods-1.15.2/lib/cocoapods/installer.rb:244:in `block in resolve_dependencies'
/Users/hs/.rvm/rubies/ruby-3.0.0/lib/ruby/gems/3.0.0/gems/cocoapods-1.15.2/lib/cocoapods/user_interface.rb:64:in `section'
/Users/hs/.rvm/rubies/ruby-3.0.0/lib/ruby/gems/3.0.0/gems/cocoapods-1.15.2/lib/cocoapods/installer.rb:243:in `resolve_dependencies'
/Users/hs/.rvm/rubies/ruby-3.0.0/lib/ruby/gems/3.0.0/gems/cocoapods-1.15.2/lib/cocoapods/installer.rb:162:in `install!'
/Users/hs/.rvm/rubies/ruby-3.0.0/lib/ruby/gems/3.0.0/gems/cocoapods-1.15.2/lib/cocoapods/command/install.rb:52:in `run'
/Users/hs/.rvm/rubies/ruby-3.0.0/lib/ruby/gems/3.0.0/gems/claide-1.1.0/lib/claide/command.rb:334:in `run'
/Users/hs/.rvm/rubies/ruby-3.0.0/lib/ruby/gems/3.0.0/gems/cocoapods-1.15.2/lib/cocoapods/command.rb:52:in `run'
/Users/hs/.rvm/rubies/ruby-3.0.0/lib/ruby/gems/3.0.0/gems/cocoapods-1.15.2/bin/pod:55:in `<top (required)>'
/Users/hs/.rvm/rubies/ruby-3.0.0/bin/pod:25:in `load'
/Users/hs/.rvm/rubies/ruby-3.0.0/bin/pod:25:in `<main>'
/Users/hs/.rvm/rubies/ruby-3.0.0/bin/ruby_executable_hooks:22:in `eval'
/Users/hs/.rvm/rubies/ruby-3.0.0/bin/ruby_executable_hooks:22: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+%22path%22%3D%3E%22ProtocolConnectionTests%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
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