Adding spec repo `trunk` with CD

在pod install的时候出现以下报错：

Adding spec repo `trunk` with CDN `https://cdn.cocoapods.org/` 

经过多方查询问题终于解决了方法如下：

• 在podfile文件头部添加

source 'https://github.com/CocoaPods/Specs.git'

我的podfile文件大概如下：

source 'https://github.com/CocoaPods/Specs.git'
platform :ios, '13.0'
use_frameworks!

target 'MyProject' do
  pod 'SnapKit'      , '~> 5.0.1'     # 代码布局
  pod 'Alamofire'    , '~> 5.5.0'     # 网络请求
end

• 移除trunk源

打开终端执行:

pod repo remove trunk

• 然后重新执行pod的更新方法

pod install --repo-update

mac@Macmini EMEP % pod install --repo-update
Updating local specs repositories
  $ /usr/bin/git -C /Users/mac/.cocoapods/repos/master fetch origin --progress
  remote: Enumerating objects: 20259, done.        
  remote: Counting objects: 100% (20259/20259), done.        
  remote: Compressing objects: 100% (9015/9015), done.        
  remote: Total 18111 (delta 12367), reused 13719 (delta 8521), pack-reused 0
  Receiving objects: 100% (18111/18111), 2.02 MiB | 949.00 KiB/s, done.
  Resolving deltas: 100% (12367/12367), completed with 1979 local objects.
  From https://github.com/CocoaPods/Specs
     0d59fbb1558..f5af0d2d24a  master     -> origin/master
  $ /usr/bin/git -C /Users/mac/.cocoapods/repos/master rev-parse --abbrev-ref HEAD
  master
  $ /usr/bin/git -C /Users/mac/.cocoapods/repos/master reset --hard origin/master
  HEAD is now at f5af0d2d24a [Add] LRKSAdSDK 0.0.13
Analyzing dependencies
Downloading dependencies
Generating Pods project
Integrating client project
Pod installation complete! There are 15 dependencies from the Podfile and 15 total pods installed.

问题已解决。