What is going go ?

[mgtltd]

macOS (desktop) • macos • darwin-arm64 • macOS 15.2 24C101 darwin-arm (Rosetta)
[1]: Jordan Yip 🏐 (00008130-00116D39013A001C)
[2]: iPhone 15 Pro (5175A7AA-EB09-428A-9A12-6FC7874362BA)
[3]: macOS (macos)
Please choose one (To quit, press "q/Q"): 2
Launching lib/main.dart on iPhone 15 Pro in debug mode...
Running pod install... 1,544ms
CocoaPods' output:
↳
Preparing

Analyzing dependencies

Inspecting targets to integrate
  CDN: trunk Relative path: CocoaPods-version.yml exists! Returning local because checking is only performed in repo update

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### Command

```
/opt/homebrew/Cellar/cocoapods/1.15.2/libexec/bin/pod install --verbose
```

### Report

* What did you do?

* What did you expect to happen?

* What happened instead?


### Stack

```
   CocoaPods : 1.15.2
        Ruby : ruby 3.3.3 (2024-06-12 revision f1c7b6f435) [arm64-darwin23]
    RubyGems : 3.5.11
        Host : macOS 15.2 (24C101)
       Xcode : 16.2 (16C5032a)
         Git : git version 2.39.1
Ruby lib dir : /opt/homebrew/Cellar/ruby/3.3.3/lib
Repositories : trunk - CDN - https://cdn.cocoapods.org/
```

### 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
```

### Podfile

```ruby
# Uncomment this line to define a global platform for your project
platform :ios, '13.0'

# CocoaPods analytics sends network stats synchronously affecting flutter build latency.
ENV['COCOAPODS_DISABLE_STATS'] = 'true'

project 'Runner', {
  'Debug' => :debug,
  'Profile' => :release,
  'Release' => :release,
}

def flutter_root
  generated_xcode_build_settings_path = File.expand_path(File.join('..', 'Flutter', 'Generated.xcconfig'), __FILE__)
  unless File.exist?(generated_xcode_build_settings_path)
    raise "#{generated_xcode_build_settings_path} must exist. If you're running pod install manually, make sure flutter pub get is executed first"
  end

  File.foreach(generated_xcode_build_settings_path) do |line|
    matches = line.match(/FLUTTER_ROOT\=(.*)/)
    return matches[1].strip if matches
  end
  raise "FLUTTER_ROOT not found in #{generated_xcode_build_settings_path}. Try deleting Generated.xcconfig, then run flutter pub get"
end

require File.expand_path(File.join('packages', 'flutter_tools', 'bin', 'podhelper'), flutter_root)

flutter_ios_podfile_setup

target 'Runner' do
  use_frameworks!
  use_modular_headers!

  flutter_install_all_ios_pods File.dirname(File.realpath(__FILE__))
end

post_install do |installer|
  installer.pods_project.targets.each do |target|
    flutter_additional_ios_build_settings(target)
  end
end
```

### Error

```
RuntimeError - [Xcodeproj] Unknown object version (77).
/opt/homebrew/Cellar/cocoapods/1.15.2/libexec/gems/xcodeproj-1.24.0/lib/xcodeproj/project.rb:228:in `initialize_from_file'
/opt/homebrew/Cellar/cocoapods/1.15.2/libexec/gems/xcodeproj-1.24.0/lib/xcodeproj/project.rb:113:in `open'
/opt/homebrew/Cellar/cocoapods/1.15.2/libexec/gems/cocoapods-1.15.2/lib/cocoapods/installer/analyzer.rb:1194:in `block (2 levels) in inspect_targets_to_integrate'
/opt/homebrew/Cellar/cocoapods/1.15.2/libexec/gems/cocoapods-1.15.2/lib/cocoapods/installer/analyzer.rb:1193:in `each'
/opt/homebrew/Cellar/cocoapods/1.15.2/libexec/gems/cocoapods-1.15.2/lib/cocoapods/installer/analyzer.rb:1193:in `block in inspect_targets_to_integrate'
/opt/homebrew/Cellar/cocoapods/1.15.2/libexec/gems/cocoapods-1.15.2/lib/cocoapods/user_interface.rb:64:in `section'
/opt/homebrew/Cellar/cocoapods/1.15.2/libexec/gems/cocoapods-1.15.2/lib/cocoapods/installer/analyzer.rb:1188:in `inspect_targets_to_integrate'
/opt/homebrew/Cellar/cocoapods/1.15.2/libexec/gems/cocoapods-1.15.2/lib/cocoapods/installer/analyzer.rb:107:in `analyze'
/opt/homebrew/Cellar/cocoapods/1.15.2/libexec/gems/cocoapods-1.15.2/lib/cocoapods/installer.rb:422:in `analyze'
/opt/homebrew/Cellar/cocoapods/1.15.2/libexec/gems/cocoapods-1.15.2/lib/cocoapods/installer.rb:244:in `block in resolve_dependencies'
/opt/homebrew/Cellar/cocoapods/1.15.2/libexec/gems/cocoapods-1.15.2/lib/cocoapods/user_interface.rb:64:in `section'
/opt/homebrew/Cellar/cocoapods/1.15.2/libexec/gems/cocoapods-1.15.2/lib/cocoapods/installer.rb:243:in `resolve_dependencies'
/opt/homebrew/Cellar/cocoapods/1.15.2/libexec/gems/cocoapods-1.15.2/lib/cocoapods/installer.rb:162:in `install!'
/opt/homebrew/Cellar/cocoapods/1.15.2/libexec/gems/cocoapods-1.15.2/lib/cocoapods/command/install.rb:52:in `run'
/opt/homebrew/Cellar/cocoapods/1.15.2/libexec/gems/claide-1.1.0/lib/claide/command.rb:334:in `run'
/opt/homebrew/Cellar/cocoapods/1.15.2/libexec/gems/cocoapods-1.15.2/lib/cocoapods/command.rb:52:in `run'
/opt/homebrew/Cellar/cocoapods/1.15.2/libexec/gems/cocoapods-1.15.2/bin/pod:55:in `<top (required)>'
/opt/homebrew/Cellar/cocoapods/1.15.2/libexec/bin/pod:25:in `load'
/opt/homebrew/Cellar/cocoapods/1.15.2/libexec/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=%5BXcodeproj%5D+Unknown+object+version+%2877%29.&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!

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Error output from CocoaPods:
↳

[!] [!] Xcodeproj doesn't know about the following attributes {"preferredProjectObjectVersion"=>"77"} for the 'PBXProject' isa.
If this attribute was generated by Xcode please file an issue: https://github.com/CocoaPods/Xcodeproj/issues/new

Error running pod install
Error launching application on iPhone 15 Pro.