在升級mac系統(tǒng)到macOS Sierra 10.12.1后，發(fā)現(xiàn)之前安裝的cocoapods不見了.

結(jié)合之前的經(jīng)驗(yàn)和網(wǎng)上的教程重現(xiàn)安裝了一遍:
==> 表示Terminal輸出
gem source -l ==> https://ruby.taobao.org/
看到網(wǎng)上說淘寶的鏡像不再維護(hù)，應(yīng)更換鏡像:https://gems.ruby-china.org/
gem sources --remove https://ruby.taobao.org/
gem sources -a https://gems.ruby-china.org/
gem source -l ==>https://gems.ruby-china.org/
更換完成
sudo gem install cocoapods
報(bào)錯:

==>
ERROR:  While executing gem ... (Gem::DependencyError)
    Unable to resolve dependencies: cocoapods requires cocoapods-core (= 1.1.1), claide (< 2.0, >= 1.0.1), cocoapods-downloader (< 2.0, >= 1.1.2), cocoapods-trunk (< 2.0, >= 1.1.1), xcodeproj (< 2.0, >= 1.3.3), fourflusher (~> 2.0.1)

錯誤信息提示缺少一些依賴項(xiàng),于是就手動安裝各個(gè)依賴項(xiàng)，反正不幾個(gè)
sudo gem install cocoapods-core
sudo gem install claide
sudo gem install cocoapods-downloader
sudo gem install cocoapods-trunk
sudo gem install xcodeproj
sudo gem install fourflusher
比較順利
再次:
sudo gem install cocoapods

==>
Fetching: cocoapods-deintegrate-1.0.1.gem (100%)
Successfully installed cocoapods-deintegrate-1.0.1
Fetching: cocoapods-plugins-1.0.0.gem (100%)
Successfully installed cocoapods-plugins-1.0.0
Fetching: cocoapods-search-1.0.0.gem (100%)
Successfully installed cocoapods-search-1.0.0
Fetching: cocoapods-stats-1.0.0.gem (100%)
Successfully installed cocoapods-stats-1.0.0
Fetching: cocoapods-try-1.1.0.gem (100%)
Successfully installed cocoapods-try-1.1.0
Fetching: molinillo-0.5.1.gem (100%)
Successfully installed molinillo-0.5.1
Fetching: gh_inspector-1.0.2.gem (100%)
Successfully installed gh_inspector-1.0.2
Fetching: cocoapods-1.1.1.gem (100%)
Successfully installed cocoapods-1.1.1
Parsing documentation for cocoapods-deintegrate-1.0.1
Installing ri documentation for cocoapods-deintegrate-1.0.1
Parsing documentation for cocoapods-plugins-1.0.0
Installing ri documentation for cocoapods-plugins-1.0.0
Parsing documentation for cocoapods-search-1.0.0
Installing ri documentation for cocoapods-search-1.0.0
Parsing documentation for cocoapods-stats-1.0.0
Installing ri documentation for cocoapods-stats-1.0.0
Parsing documentation for cocoapods-try-1.1.0
Installing ri documentation for cocoapods-try-1.1.0
Parsing documentation for molinillo-0.5.1
Installing ri documentation for molinillo-0.5.1
Parsing documentation for gh_inspector-1.0.2
Installing ri documentation for gh_inspector-1.0.2
Parsing documentation for cocoapods-1.1.1
Installing ri documentation for cocoapods-1.1.1
8 gems installed

比較順利,最后：
pod setup
等待約40分鐘??！安裝完成