Cocoapods私有库报错处理An unexpected version directory `Classes`

当你创建好私有库，提交好后，本地索引做好。
但是当你pod search name或者pod install时候报错

Analyzing dependencies
[!] An unexpected version directory `Classes` was encountered for the `/Users/Zapper/.cocoapods/repos/Foobar/Foobar` Pod in the `Foobar` repository.

搜了网上一大堆解决方案，都不是真正的办法，原因是你podfile里配置问题

• 错误事例：

# Uncomment the next line to define a global platform for your project
 platform :ios, '9.0'

source 'https://gitee.com/paoche/ywchainable-animations.git'
source 'https://github.com/CocoaPods/Specs.git'

target 'ceshi' do
  # Comment the next line if you don't want to use dynamic frameworks
  use_frameworks!

pod 'YWChainableAnimations'
pod 'SDWebImage'
  # Pods for ceshi

  target 'ceshiTests' do
    inherit! :search_paths
    # Pods for testing

  end

  target 'ceshiUITests' do
    # Pods for testing
  end

end

• 正确事例：

# Uncomment the next line to define a global platform for your project
 platform :ios, '9.0'

#source 'https://gitee.com/paoche/ywchainable-animations.git'
#source 'https://github.com/CocoaPods/Specs.git'

target 'ceshi' do
  # Comment the next line if you don't want to use dynamic frameworks
  use_frameworks!

pod 'YWChainableAnimations', :git => "https://gitee.com/paoche/ywchainable-animations.git", :tag => '1.0.0'
pod 'SDWebImage'
  # Pods for ceshi

  target 'ceshiTests' do
    inherit! :search_paths
    # Pods for testing

  end

  target 'ceshiUITests' do
    # Pods for testing
  end

end