cocoapods最新踩坑以及更新
cocoapods的更新
pod update 报错
[!] Failed to connect to GitHub to update the CocoaPods/Specs specs repo - Please check if you are offline, or that GitHub is down
解决方法
一、升级openssl，先看版本
openssl version输出：OpenSSL 0.9.8zh 14 Jan 2016
2、输入
/usr/bin/ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)"可能会要你在回车一下，点击回车键
3、更新brew
brew updateps：如果提示：Error: /usr/local must be writable!
输入：
liuxin$ sudo chown -R $(whoami) /usr/local4、install openssl
brew install openssl
brew upgrade openssl5、输入
which openssl
echo 'export PATH="/usr/local/opt/openssl/bin:$PATH"' >> ~/.bash_profile
source ~/.bash_profile再次查看version
which openssl输出：/usr/local/opt/openssl/bin/openssl
openssl version输出：OpenSSL 1.0.2o 27 Mar 2018
二、到这里，openssl就更新完成了，下面更新ruby，输入如下：
brew install rbenv ruby-build
echo 'export PATH="$HOME/.rbenv/bin:$PATH"' >> ~/.bash_profile
echo 'if which rbenv > /dev/null; then eval "$(rbenv init -)"; fi' >> ~/.bash_profile
source ~/.bash_profile查看当前ruby版本：
ruby --version输出：ruby 2.0.0p648 (2015-12-16 revision 53162) [universal.x86_64-darwin16]
我们需要更新到最新的版本，先查看最新版本列表
rvm list known大概如下，能看到一片内容，找到当前最新到2.4.1
[ruby-]1.8.6[-p420]
[ruby-]1.8.7[-head] # security released on head
[ruby-]1.9.1[-p431]
[ruby-]1.9.2[-p330]
[ruby-]1.9.3[-p551]
[ruby-]2.0.0[-p648]
[ruby-]2.1[.10]
[ruby-]2.2[.7]
[ruby-]2.3[.4]
[ruby-]2.4[.1]输入：
rvm install 2.4如果更新报错：Error running ‘requirements_osx_brew_update_system ruby-2.4.1
根据提示操作
打开.bash_profile
open .bash_profile把source ~/.profile添加进入
如下面所示：
export PATH="/usr/local/opt/openssl/bin:$PATH"
export PATH="$HOME/.rbenv/bin:$PATH"
if which rbenv > /dev/null; then eval "$(rbenv init -)"; fi
source ~/.profile
[[ -s "$HOME/.rvm/scripts/rvm" ]] && source "$HOME/.rvm/scripts/rvm" # Load RVM into a shell session *as a function*
再次更新：
1、curl -L get.rvm.io | bash -s stable
2、source ~/.bashrc
3、source ~/.bash_profile
4、rvm -v然后到这里就更新完了，这个时候，我们就可以导入第三方库
例如：
pod search SDWebImage输出：
-> SDWebImage (4.0.0)
Asynchronous image downloader with cache support with an UIImageView
category.
pod 'SDWebImage', '~> 4.0.0'
- Homepage: https://github.com/rs/SDWebImage
- Source: https://github.com/rs/SDWebImage.git
- Versions: 4.0.0, 4.0.0-beta2, 4.0.0-beta, 3.8.2, 3.8.1, 3.8.0, 3.7.6,
3.7.5, 3.7.4, 3.7.3, 3.7.2, 3.7.1, 3.7.0, 3.6, 3.5.4, 3.5.2, 3.5.1, 3.5, 3.4,
3.3, 3.2, 3.1, 3.0, 2.7.4, 2.7, 2.6, 2.5, 2.4 [master repo]
- Subspecs:
- SDWebImage/Core (4.0.0)
- SDWebImage/MapKit (4.0.0)
- SDWebImage/GIF (4.0.0)
- SDWebImage/WebP (4.0.0)
-> SDWebImage+ExtensionSupport (3.7.1.2)
Asynchronous image downloader with cache support with an UIImageView
category. Added SD_APP_EXTENSION macro for ios8 extensions
pod 'SDWebImage+ExtensionSupport', '~> 3.7.1.2'
- Homepage: https://github.com/rs/SDWebImage
- Source: https://github.com/glassoff/SDWebImage.git
- Versions: 3.7.1.2, 3.7.1.1 [master repo]这个时候，我们cd一个项目
然后：
1、touch podfile
2、vim podfile然后
pod 'AFNetworking', '~> 3.1.0'最后
pod install但是这个时候又报错了，
[!] The dependency ` is not used in any concrete target. SDWebImage (~> 4.0.0)` is not used in any concrete target.
[!] The dependency
解决办法
打开podfile
platform :ios,"8.0"
target "项目名称" do
pod 'SDWebImage', '~> 4.0.0'
end然后在更新
pod install
显示如下信息，完成
Analyzing dependencies
Downloading dependencies
Installing SDWebImage (4.0.0)
Generating Pods project
Integrating client project
[!] Please close any current Xcode sessions and use `cityText.xcworkspace` for this project from now on.
Sending stats
Pod installation complete! There is 1 dependency from the Podfile and 1 total pod installed.