Xcode 14 新建项目没办法pod 报错

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http://www.licqi.com/artikel/11110.html

问题：Xcode 14 创建的新项目，无法进行Pod install。

报错如下：

1.  
   [!] Oh no, an error occurred.
2.  
    
3.  
   Search for existing GitHub issues similar to yours:
4.  
   https://github.com/CocoaPods/CocoaPods/search?q=%5BXcodeproj%5D Unknown object version %2856%29.&type=Issues
5.  
    
6.  
   If none exists, create a ticket, with the template displayed above, on:
7.  
   https://github.com/CocoaPods/CocoaPods/issues/new
8.  
    
9.  
   Be sure to first read the contributing guide for details on how to properly submit a ticket:
10.  
    https://github.com/CocoaPods/CocoaPods/blob/master/CONTRIBUTING.md
11.  
     
12.  
    Don't forget to anonymize any private data!
13.  
     
14.  
    Looking for related issues on cocoapods/cocoapods...
15.  
    - Pod init in xcode 14.1 and mac os ventura 13.0.1
16.  
    https://github.com/CocoaPods/CocoaPods/issues/11656 [open] [19 comments]
17.  
    a week ago
18.  
     
19.  
    - pod init after update it to XCODE 14
20.  
    https://github.com/CocoaPods/CocoaPods/issues/11546 [open] [21 comments]
21.  
    2 weeks ago
22.  
     
23.  
    - 'pod init' and 'pod install' both fail with "can't modify frozen String (FrozenError)"
24.  
    https://github.com/CocoaPods/CocoaPods/issues/11594 [closed] [4 comments]
25.  
    3 days ago
26.  
     

1.  
   end
2.  
   ```
3.  
    
4.  
   ### Error
5.  
    
6.  
   ```
7.  
   RuntimeError - [Xcodeproj] Unknown object version (56).
8.  
   /Users/zst01/.rvm/rubies/ruby-3.0.0/lib/ruby/gems/3.0.0/gems/xcodeproj-1.21.0/lib/xcodeproj/project.rb:228:in `initialize_from_file'
9.  
   /Users/zst01/.rvm/rubies/ruby-3.0.0/lib/ruby/gems/3.0.0/gems/xcodeproj-1.21.0/lib/xcodeproj/project.rb:113:in `open'
10.  
    ........

提示： Unknown object version (56) --未知对象版本（56）

解决：如何修改compatibilityVersion呢？可以通过 Project Format，可以暂时将Project Format：

 Xcode 14.0-compatible改为Xcode 13.0-compatible

如图：

 原因：

是版本不匹配导致的，应该和升级Xcode 14有关系。

1.  
   in `initialize_from_file': [Xcodeproj] Unknown object version (56). (RuntimeError)
2.  
    

但是官方还没有给出解决方案。应该后续会有兼容的cocoapods 新版本。
通过与老项目对比发现是compatibilityVersion Xcode 兼容版本不一致，那么我们就可以将这个版本修改到低版本试试

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