iOS开发工具 --- CocoaPods使用过程中遇到的问题

1、去除CocoaPods相关库警告

• 去除所有警告，在platform :ios, ‘x.0’ 的后面加入这句：

inhibit_all_warnings!

• 对单个消除警告：

pod 'MJExtension','~>3.0.15.1',:inhibit_warnings => true

2、[!] Unable to find a pod with name, author, summary, or description matching xxx.

• 解决办法：
  删除~/Library/Caches/CocoaPods目录下的search_index.json文件

rm ~/Library/Caches/CocoaPods/search_index.json

3、[!] CDN: trunk URL couldn't be downloaded: https://raw.githubusercontent.com/CocoaPods/Specs/master/Specs/2/e/7/YTKNetworkExtension/0.1.0/YTKNetworkExtension.podspec.json, error: Failed to open TCP connection to raw.githubusercontent.com:443 (Connection refused - connect(2) for "raw.githubusercontent.com" port 443)

• 问题原因：
  CocoaPods 1.8+将CDN切换为默认的spec repo源，并附带一些增强功能！CDN支持最初是在1.7版本中引入的，最终在1.7.2中完成。 它旨在大大加快初始设置和依赖性分析。

• 解决办法:

1. podfile文件中添加source源：
   source 'https://github.com/CocoaPods/Specs.git
2. 移除 trunk

pod repo remove trunk

4、 pod install 时出现xxxxx does not specify a Swift version and none of the targets (Pods) integrating it have the SWIFT_VERSION attribute set. Please contact the author or set the SWIFT_VERSION attribute in at least one of the targets that integrate this pod

解决办法：
在podfile文件添加use_frameworks!

target ‘Project_xx’ do
  use_frameworks!
end

5、升级Mac OS之后执行pod命令出现Failed to extract git version from git --version ("xcrun: error: invalid active developer path (/Library/Developer/CommandLineTools), missing xcrun at: /Library/Developer/CommandLineTools/usr/bin/xcrun\n") (RuntimeError)

解决办法：重装xcode command line：

xcode-select --install

如果没有解决问题，执行以下命令

sudo xcode-select -switch /

6、pod install时出现error: RPC failed; curl 56 LibreSSL SSL_read: SSL_ERROR_SYSCALL, errno 54错误

解决办法：

git config --global http.postBuffer 524288000