### Error ``` RuntimeError - `PBXGroup` attempted to initialize an object with unknown ISA `PBXFileSystemSynchronizedRootGroup` from attributes: `{"isa"=>"PBXFileSystemSynchronizedRootGroup", "exceptions"=>["6AA234882CC699D400164A37"], "path"=>"test", "sourceTree"=>"<group>"}`

[Chrishyh]

pod init

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Command

/Users/hexinghui/.rbenv/versions/3.1.2/bin/pod init

Report

• What did you do?

• What did you expect to happen?

• What happened instead?

Stack

   CocoaPods : 1.15.2
        Ruby : ruby 3.1.2p20 (2022-04-12 revision 4491bb740a) [arm64-darwin23]
    RubyGems : 3.5.22
        Host : macOS 14.6.1 (23G93)
       Xcode : 16.0 (16A242d)
         Git : git version 2.39.5 (Apple Git-154)
Ruby lib dir : /Users/hexinghui/.rbenv/versions/3.1.2/lib
Repositories : 

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"=>["6AA234882CC699D400164A37"], "path"=>"test", "sourceTree"=>"<group>"}`
If this ISA was generated by Xcode please file an issue: https://github.com/CocoaPods/Xcodeproj/issues/new
/Users/hexinghui/.rbenv/versions/3.1.2/lib/ruby/gems/3.1.0/gems/xcodeproj-1.25.1/lib/xcodeproj/project/object.rb:359:in `rescue in object_with_uuid'
/Users/hexinghui/.rbenv/versions/3.1.2/lib/ruby/gems/3.1.0/gems/xcodeproj-1.25.1/lib/xcodeproj/project/object.rb:349:in `object_with_uuid'
/Users/hexinghui/.rbenv/versions/3.1.2/lib/ruby/gems/3.1.0/gems/xcodeproj-1.25.1/lib/xcodeproj/project/object.rb:300:in `block (2 levels) in configure_with_plist'
/Users/hexinghui/.rbenv/versions/3.1.2/lib/ruby/gems/3.1.0/gems/xcodeproj-1.25.1/lib/xcodeproj/project/object.rb:299:in `each'
/Users/hexinghui/.rbenv/versions/3.1.2/lib/ruby/gems/3.1.0/gems/xcodeproj-1.25.1/lib/xcodeproj/project/object.rb:299:in `block in configure_with_plist'
/Users/hexinghui/.rbenv/versions/3.1.2/lib/ruby/gems/3.1.0/gems/xcodeproj-1.25.1/lib/xcodeproj/project/object.rb:296:in `each'
/Users/hexinghui/.rbenv/versions/3.1.2/lib/ruby/gems/3.1.0/gems/xcodeproj-1.25.1/lib/xcodeproj/project/object.rb:296:in `configure_with_plist'
/Users/hexinghui/.rbenv/versions/3.1.2/lib/ruby/gems/3.1.0/gems/xcodeproj-1.25.1/lib/xcodeproj/project.rb:272:in `new_from_plist'
/Users/hexinghui/.rbenv/versions/3.1.2/lib/ruby/gems/3.1.0/gems/xcodeproj-1.25.1/lib/xcodeproj/project/object.rb:350:in `object_with_uuid'
/Users/hexinghui/.rbenv/versions/3.1.2/lib/ruby/gems/3.1.0/gems/xcodeproj-1.25.1/lib/xcodeproj/project/object.rb:290:in `block in configure_with_plist'
/Users/hexinghui/.rbenv/versions/3.1.2/lib/ruby/gems/3.1.0/gems/xcodeproj-1.25.1/lib/xcodeproj/project/object.rb:287:in `each'
/Users/hexinghui/.rbenv/versions/3.1.2/lib/ruby/gems/3.1.0/gems/xcodeproj-1.25.1/lib/xcodeproj/project/object.rb:287:in `configure_with_plist'
/Users/hexinghui/.rbenv/versions/3.1.2/lib/ruby/gems/3.1.0/gems/xcodeproj-1.25.1/lib/xcodeproj/project.rb:272:in `new_from_plist'
/Users/hexinghui/.rbenv/versions/3.1.2/lib/ruby/gems/3.1.0/gems/xcodeproj-1.25.1/lib/xcodeproj/project.rb:213:in `initialize_from_file'
/Users/hexinghui/.rbenv/versions/3.1.2/lib/ruby/gems/3.1.0/gems/xcodeproj-1.25.1/lib/xcodeproj/project.rb:113:in `open'
/Users/hexinghui/.rbenv/versions/3.1.2/lib/ruby/gems/3.1.0/gems/cocoapods-1.15.2/lib/cocoapods/command/init.rb:41:in `validate!'
/Users/hexinghui/.rbenv/versions/3.1.2/lib/ruby/gems/3.1.0/gems/claide-1.1.0/lib/claide/command.rb:333:in `run'
/Users/hexinghui/.rbenv/versions/3.1.2/lib/ruby/gems/3.1.0/gems/cocoapods-1.15.2/lib/cocoapods/command.rb:52:in `run'
/Users/hexinghui/.rbenv/versions/3.1.2/lib/ruby/gems/3.1.0/gems/cocoapods-1.15.2/bin/pod:55:in `<top (required)>'
/Users/hexinghui/.rbenv/versions/3.1.2/bin/pod:25:in `load'
/Users/hexinghui/.rbenv/versions/3.1.2/bin/pod:25: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%226AA234882CC699D400164A37%22%5D%2C+%22path%22%3D%3E%22test%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

  report.issues = results['items'].map { |item| Issue.new(item) }
                                  ^^^^

[Chrishyh]

解决方案：https://github.com/CocoaPods/CocoaPods/issues/12583#issuecomment-2357470707