报错提示：
Successfully installed cocoapods-1.16.2
Parsing documentation for cocoapods-1.16.2
Done installing documentation for cocoapods after 1 seconds
1 gem installed
good@sundeMac-mini ULVPN % pod install
Analyzing dependencies
――― MARKDOWN TEMPLATE ―――――――――――――――――――――――――――――――――――――――――――――――――――――――――――
### Command
```
/Applications/CocoaPods.app/Contents/Resources/bundle/bin/pod install
```
### Report
* What did you do?
* What did you expect to happen?
* What happened instead?
### Stack
```
CocoaPods : 1.5.2
Ruby : ruby 2.2.6p396 (2016-11-15 revision 56800) [x86_64-darwin15]
RubyGems : 2.6.8
Host : macOS 15.1 (24B83)
Xcode : 16.0 (16A242d)
Git : git version 2.6.2
Ruby lib dir : /Applications/CocoaPods.app/Contents/Resources/bundle/lib
Repositories : master - https://github.com/CocoaPods/Specs.git @ fb48e7aeed4837192b4ec2e746127edb42dcdb88
```
### Plugins
```
cocoapods-check : 1.0.0
cocoapods-deintegrate : 1.0.2
cocoapods-plugins : 1.0.0
cocoapods-plugins-install : 0.0.1
cocoapods-search : 1.0.0
cocoapods-stats : 1.0.0
cocoapods-trunk : 1.3.0
cocoapods-try : 1.1.0
```
### Podfile
```ruby
#source 'https://github.com/CocoaPods/Specs.git'
platform :ios, '13.0'
target 'ULVPN' do
pod 'AFNetworking'
pod 'SDWebImage'
pod 'Masonry'
pod 'YYKit'
pod 'MBProgressHUD'
end
```
### Error
```
RuntimeError -[Xcodeproj]Unknown object version.
问题修复：
1.pod --version 查看当前版本，我的是1.5.2 最新的是1.16.2，所以什么都不对，终端执行如下命令`sudo gem install cocoapods --pre`，然后更新cocoapods，检查-verison 是否更新最新的版本，pod install 就可以了
2.检查Xcode 选择 taget 右边状态栏，Xcode版本改为Xcode14左右
3.rubuy环境默认是2.6.0 改为最新的3.3.6， 终端执行如下方法：& eval "$(rbenv init -)" rubuy更换才能生效，可百度
