background
Today I saw some students in the group asking the following questions:
It means that new projects created in Xcode 14 cannot be carried out Pod install.
Out of curiosity, I also created a new project here and then executed it Pod init. Sure enough, I got the same error. The specific errors are as follows:
Traceback (most recent call last):
18: from /Users/mengruirui/.rbenv/versions/2.6.6/bin/pod:23:in `<main>'
17: from /Users/mengruirui/.rbenv/versions/2.6.6/bin/pod:23:in `load'
16: from /Users/mengruirui/.rbenv/versions/2.6.6/lib/ruby/gems/2.6.0/gems/cocoapods-1.11.2/bin/pod:55:in `<top (required)>'
15: from /Users/mengruirui/.rbenv/versions/2.6.6/lib/ruby/gems/2.6.0/gems/cocoapods-1.11.2/lib/cocoapods/command.rb:52:in `run'
14: from /Users/mengruirui/.rbenv/versions/2.6.6/lib/ruby/gems/2.6.0/gems/claide-1.0.3/lib/claide/command.rb:334:in `run'
13: from /Users/mengruirui/.rbenv/versions/2.6.6/lib/ruby/gems/2.6.0/gems/cocoapods-1.11.2/lib/cocoapods/command/install.rb:52:in `run'
12: from /Users/mengruirui/.rbenv/versions/2.6.6/lib/ruby/gems/2.6.0/gems/cocoapods-1.11.2/lib/cocoapods/installer.rb:161:in `install!'
11: from /Users/mengruirui/.rbenv/versions/2.6.6/lib/ruby/gems/2.6.0/gems/cocoapods-1.11.2/lib/cocoapods/installer.rb:240:in `resolve_dependencies'
10: from /Users/mengruirui/.rbenv/versions/2.6.6/lib/ruby/gems/2.6.0/gems/cocoapods-1.11.2/lib/cocoapods/user_interface.rb:64:in `section'
9: from /Users/mengruirui/.rbenv/versions/2.6.6/lib/ruby/gems/2.6.0/gems/cocoapods-1.11.2/lib/cocoapods/installer.rb:241:in `block in resolve_dependencies'
8: from /Users/mengruirui/.rbenv/versions/2.6.6/lib/ruby/gems/2.6.0/gems/cocoapods-1.11.2/lib/cocoapods/installer.rb:416:in `analyze'
7: from /Users/mengruirui/.rbenv/versions/2.6.6/lib/ruby/gems/2.6.0/gems/cocoapods-1.11.2/lib/cocoapods/installer/analyzer.rb:106:in `analyze'
6: from /Users/mengruirui/.rbenv/versions/2.6.6/lib/ruby/gems/2.6.0/gems/cocoapods-1.11.2/lib/cocoapods/installer/analyzer.rb:1184:in `inspect_targets_to_integrate'
5: from /Users/mengruirui/.rbenv/versions/2.6.6/lib/ruby/gems/2.6.0/gems/cocoapods-1.11.2/lib/cocoapods/user_interface.rb:64:in `section'
4: from /Users/mengruirui/.rbenv/versions/2.6.6/lib/ruby/gems/2.6.0/gems/cocoapods-1.11.2/lib/cocoapods/installer/analyzer.rb:1189:in `block in inspect_targets_to_integrate'
3: from /Users/mengruirui/.rbenv/versions/2.6.6/lib/ruby/gems/2.6.0/gems/cocoapods-1.11.2/lib/cocoapods/installer/analyzer.rb:1189:in `each'
2: from /Users/mengruirui/.rbenv/versions/2.6.6/lib/ruby/gems/2.6.0/gems/cocoapods-1.11.2/lib/cocoapods/installer/analyzer.rb:1190:in `block (2 levels) in inspect_targets_to_integrate'
1: from /Users/mengruirui/.rbenv/versions/2.6.6/lib/ruby/gems/2.6.0/gems/xcodeproj-1.21.0/lib/xcodeproj/project.rb:113:in `open'
/Users/mengruirui/.rbenv/versions/2.6.6/lib/ruby/gems/2.6.0/gems/xcodeproj-1.21.0/lib/xcodeproj/project.rb:228:in `initialize_from_file': [Xcodeproj] Unknown object version (56). (RuntimeError)
9: from /Users/mengruirui/.rbenv/versions/2.6.6/bin/pod:23:in `<main>'
8: from /Users/mengruirui/.rbenv/versions/2.6.6/bin/pod:23:in `load'
7: from /Users/mengruirui/.rbenv/versions/2.6.6/lib/ruby/gems/2.6.0/gems/cocoapods-1.11.2/bin/pod:55:in `<top (required)>'
6: from /Users/mengruirui/.rbenv/versions/2.6.6/lib/ruby/gems/2.6.0/gems/cocoapods-1.11.2/lib/cocoapods/command.rb:52:in `run'
5: from /Users/mengruirui/.rbenv/versions/2.6.6/lib/ruby/gems/2.6.0/gems/claide-1.0.3/lib/claide/command.rb:324:in `run'
4: from /Users/mengruirui/.rbenv/versions/2.6.6/lib/ruby/gems/2.6.0/gems/claide-1.0.3/lib/claide/command.rb:337:in `rescue in run'
3: from /Users/mengruirui/.rbenv/versions/2.6.6/lib/ruby/gems/2.6.0/gems/claide-1.0.3/lib/claide/command.rb:396:in `handle_exception'
2: from /Users/mengruirui/.rbenv/versions/2.6.6/lib/ruby/gems/2.6.0/gems/cocoapods-1.11.2/lib/cocoapods/command.rb:66:in `report_error'
1: from /Users/mengruirui/.rbenv/versions/2.6.6/lib/ruby/gems/2.6.0/gems/cocoapods-1.11.2/lib/cocoapods/user_interface/error_report.rb:34:in `report'
/Users/mengruirui/.rbenv/versions/2.6.6/lib/ruby/gems/2.6.0/gems/cocoapods-1.11.2/lib/cocoapods/user_interface/error_report.rb:34:in `force_encoding': can't modify frozen String (FrozenError)
solve
Checking the error log, I found a very important message, which should be caused by version mismatch, which should be related to upgrading to Xcode 14.
in `initialize_from_file': [Xcodeproj] Unknown object version (56). (RuntimeError)
Then I went to GitHub the cocoapods official warehouse to see if there was any relevant information. Sure enough, some students also encountered the same problem.
But there is no official solution yet. There should be a compatible new version of cocoapods in the future.
By comparing with the old project, it is found that compatibilityVersionthe Xcode compatible version is inconsistent, then we can modify this version to a lower version and try it.
How to modify compatibilityVersionit? It can be passed Project Format. You can temporarily Project Formatchange it to Xcode 13.0-compatible
as shown below:
After changing the version, execute Podthe command again and find that no error is reported anymore.