轉(zhuǎn)自:http://blog.csdn.net/xingxingrainlove/article/details/53257944
今天在運(yùn)行項目時突然遇到異常報錯：not find -lpod；一開始感覺很莫名其妙归形，隨后意識到可能是cocoaPods的問題悲没，于是嘗試更新pod install蝌箍，結(jié)果紅色警告提示：
The `master` repo requires CocoaPods 1.0.0 - (currently using 0.39.0)碰酝；所以最終問題是cocoaPods版本太低，需要更新了（我的當(dāng)前版本是0.39.0）色洞。
《自以為是的更新步驟：
1.更新gem
$ sudo gem update
結(jié)果如下：
Updating installed gems
Updating CFPropertyList
Fetching: CFPropertyList-2.3.3.gem (100%)
Successfully installed CFPropertyList-2.3.3
Parsing documentation for CFPropertyList-2.3.3
Installing ri documentation for CFPropertyList-2.3.3
Installing darkfish documentation for CFPropertyList-2.3.3
Parsing documentation for CFPropertyList-2.3.3
Updating activesupport
Fetching: concurrent-ruby-1.0.2.gem (100%)
Successfully installed concurrent-ruby-1.0.2
Fetching: activesupport-5.0.0.1.gem (100%)
ERROR:? Error installing activesupport:
activesupport requires Ruby version >= 2.2.2.//Ruby version的版本較低贞言， 最低需要2.2.2版本
Updating bigdecimal
Fetching: bigdecimal-1.2.7.gem (100%)
Building native extensions.? This could take a while...
Successfully installed bigdecimal-1.2.7
Parsing documentation for bigdecimal-1.2.7
unable to convert "\xCA" from ASCII-8BIT to UTF-8 for /Library/Ruby/Gems/2.0.0/extensions/universal-darwin-15/2.0.0/bigdecimal-1.2.7/bigdecimal.bundle, skipping
unable to convert "\xCA" from ASCII-8BIT to UTF-8 for bigdecimal.bundle, skipping
unable to convert "\xCA" from ASCII-8BIT to UTF-8 for bigdecimal.o, skipping
Installing ri documentation for bigdecimal-1.2.7
Installing darkfish documentation for bigdecimal-1.2.7
Parsing documentation for bigdecimal-1.2.7
unable to convert "\xCA" from ASCII-8BIT to UTF-8 for /Library/Ruby/Gems/2.0.0/extensions/universal-darwin-15/2.0.0/bigdecimal-1.2.7/bigdecimal.bundle, skipping
unable to convert "\xCA" from ASCII-8BIT to UTF-8 for bigdecimal.bundle, skipping
unable to convert "\xCA" from ASCII-8BIT to UTF-8 for bigdecimal.o, skipping
Updating claide
Fetching: claide-1.0.1.gem (100%)
Successfully installed claide-1.0.1
Installing darkfish documentation for CFPropertyList-2.3.3
Parsing documentation for CFPropertyList-2.3.3
Updating activesupport
Fetching: concurrent-ruby-1.0.2.gem (100%)
Successfully installed concurrent-ruby-1.0.2
Fetching: activesupport-5.0.0.1.gem (100%)
ERROR:? Error installing activesupport:
activesupport requires Ruby version >= 2.2.2.//Ruby version的版本較低， 最低需要2.2.2版本
Updating bigdecimal
Fetching: bigdecimal-1.2.7.gem (100%)
Building native extensions.? This could take a while...
Successfully installed bigdecimal-1.2.7
Parsing documentation for bigdecimal-1.2.7
unable to convert "\xCA" from ASCII-8BIT to UTF-8 for /Library/Ruby/Gems/2.0.0/extensions/universal-darwin-15/2.0.0/bigdecimal-1.2.7/bigdecimal.bundle, skipping
unable to convert "\xCA" from ASCII-8BIT to UTF-8 for bigdecimal.bundle, skipping
unable to convert "\xCA" from ASCII-8BIT to UTF-8 for bigdecimal.o, skipping
Installing ri documentation for bigdecimal-1.2.7
Installing darkfish documentation for bigdecimal-1.2.7
Parsing documentation for bigdecimal-1.2.7
unable to convert "\xCA" from ASCII-8BIT to UTF-8 for /Library/Ruby/Gems/2.0.0/extensions/universal-darwin-15/2.0.0/bigdecimal-1.2.7/bigdecimal.bundle, skipping
unable to convert "\xCA" from ASCII-8BIT to UTF-8 for bigdecimal.bundle, skipping
unable to convert "\xCA" from ASCII-8BIT to UTF-8 for bigdecimal.o, skipping
Updating claide
Fetching: claide-1.0.1.gem (100%)
……………...
ERROR:? While executing gem ... (Errno::EPERM)
Operation not permitted - /usr/bin/xcodeproj//意思是gem更新失敗了糕篇，出現(xiàn)了錯誤啄育，究其原因就是Ruby version的版本較低導(dǎo)致。
注：這種情況是不正常的拌消，說明更新失敗挑豌，其它可以忽略：失敗原因就在畫線的兩行ERROR里面。
2.我自動忽略了以上報錯繼續(xù)進(jìn)行下面的操作：
gem sources -l
sudo gem install cocoapods
很顯然注定是要失敗的，一直報錯：
ERROR:? While executing gem ... (Errno::EPERM)
Operation not permitted - /usr/bin/xcodeproj
最后一步pod setup
繼續(xù)報錯：[!] The `master` repo requires CocoaPods 1.0.0 -? (currently using 0.39.0)
所以什么用也沒有Ｃビⅰ：蠲恪！Ｂ敛壳鹤！
《正確的解決步驟
從網(wǎng)上搜索解決方案，經(jīng)過實(shí)踐總結(jié)正確的步驟饰迹。（幫助文章鏈接：http://blog.csdn.net/yangyangzhang1990/article/details/52252146）
很明顯從上面的問題中找到了最根本的原因是Ruby的版本較低芳誓。
第一步：首先檢測各種版本是否合格：
rvm-v ?:ram相當(dāng)于一個ruby倉庫，管理ruby不同版本啊鸭。（我的當(dāng)前版本是1.26.11锹淌，可以，當(dāng)然最好更新到1.27.0）
如果低于1.26.11需要安裝一下：source ~/.rvm/scripts/rvm
安裝成功提示是：rvm 1.27.0 (latest) by Wayne E. Seguin <wayneeseguin@gmail.com>, Michal Papis <mpapis@gmail.com> [https://rvm.io/]
版本為：1.27.0
第二步：將Ruby的版本升級到2.2.2赠制，（建議不要安裝 最新版的 2.3.0）
rvm install ruby 2.2.2
安裝成功提示是：ruby 2.2.2p95 (2015-04-13 revision 50295) [x86_64-darwin14]
我的提示是：Warning, new version of rvm available '1.27.0', you are using older version '1.26.11'.j警告版本低于最新版赂摆，暫時不影響。
ruby -v:看一下當(dāng)前版本
安裝成功提示是：ruby 2.2.2p95 (2015-04-13 revision 50295) [x86_64-darwin15]
如果還沒有安裝成功钟些，提示你 home－brew 沒有安裝烟号，那你需要安裝home－brew
第三步：安裝home-brew
/usr/bin/ruby -e "$(curl -fsSLhttps://raw.githubusercontent.com/Homebrew/install/master/install)"
詳細(xì)安裝 步驟 可查看博客地址：http://blog.csdn.net/yangyangzhang1990/article/details/51578565
第四步：安裝cocoaPods
安裝home－brew 成功后，執(zhí)行? brew install ruby 2.2.2?? 政恍。
首先? ruby －v??? 查看你的ruby 版本
接著? rvm －v???? 查看你的rvm? 版本
接著gem－v查看你的gem版本
接著? brew －v?? 查看你的brew 版本
gem source－l查看你的鏡像源汪拥。這里推薦使用 騰訊云 鏡像。
gem sources --remove老得鏡像源地址
gem sources -a新的鏡像源地址
gem sources -l查看當(dāng)前最新的鏡像源地址
具體操作提示：
czhdeiMac:kuihuajingyingwang czh$gem sources -l
*** CURRENT SOURCES ***
czhdeiMac:kuihuajingyingwang czh$gem sources --removehttps://ruby.taobao.org
https://ruby.taobao.orgremoved from sources
czhdeiMac:kuihuajingyingwang czh$gem sources -ahttp://gems.ruby-china.org/
http://gems.ruby-china.org/added to sources
czhdeiMac:kuihuajingyingwang czh$sudo gem? install -n /usr/local/bin?cocoa pods ? ? //這個地方不能用之前舊的更新方法：sudo gem install cocoapods
Password:
Fetching: i18n-0.7.0.gem (100%)
Successfully installed i18n-0.7.0
如果這樣執(zhí)行 pod install的時候還出現(xiàn)
The dependency ``isnotusedinany concrete target
The dependency `AFNetworking`isnotusedinany concrete target
官網(wǎng)是這樣給推薦的：
在創(chuàng)建Podfile的時候篙耗，用這種格式使用迫筑，
platform:ios,'8.0'
#use_frameworks!個別需要用到它，比如reactiveCocoa
target?'MyApp' do
pod'AFNetworking','~> 2.6'
pod'ORStackView','~> 3.0'
pod'SwiftyJSON','~> 2.3'
end
里面的MyApp記得替換為自己攻城里面的target宗弯。這樣就基本OK了脯燃，執(zhí)行pod install / pod update 就都可以了。（use_frameworks! 這個是個別需要的蒙保，這里修改一下辕棚，可以把我上面的代碼中的這一行【刪除】）
Successfully installed claide-1.0.1
[!] Pods written in Swift can only be integrated as frameworks; add `use_frameworks!` to your Podfile
正確的寫法Swift：
platform :ios, ‘8.0’
target ‘TestObjectTwo’do
pod ‘Alamofire’, ‘~>4.0’
pod ‘SnapKit’, ‘~>3.0.2’
use_frameworks!
end
在安裝CocoaPods出現(xiàn)了以下問題:
ERROR: SSL verification error at depth 1: unable to get local issuer certificate (20)
ERROR: You must add /C=IL/O=StartCom Ltd./OU=Secure Digital Certificate Signing/CN=StartCom Certification Authority to your local trusted store
ERROR: SSL verification error at depth 2: self signed certificate in certificate chain (19)
ERROR: Root certificate is not trusted (/C=US/O=GeoTrust Inc./CN=GeoTrust Global CA)
出現(xiàn)這個問題的原因主要是Ruby環(huán)境需要2.2版本以上，所以要更新Ruby環(huán)境邓厕。
更新Ruby環(huán)境
0.首先要安裝 Homebrew 終端輸入這條命令即可 /usr/bin/ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)"
1.安裝rvm $ curl -L get.rvm.io | bash -s stable
2.裝載rvm $ source ~/.rvm/scripts/rvm
3.安裝2.3.0版本ruby $ rvm install 2.3.0
4.將2.3.0設(shè)為默認(rèn) $ rvm use 2.3.0 --default
