/Library/Ruby/Site/2.3.0/rubygems/core_ext/kernel_require.rb:135:in `require': cannot load such file -- active_support/core_ext/string/strip (LoadError)
from /Library/Ruby/Site/2.3.0/rubygems/core_ext/kernel_require.rb:135:in `rescue in require'
from /Library/Ruby/Site/2.3.0/rubygems/core_ext/kernel_require.rb:39:in `require'
from /Library/Ruby/Gems/2.3.0/gems/cocoapods-1.5.3/lib/cocoapods.rb:7:in `<top (required)>'
from /Library/Ruby/Site/2.3.0/rubygems/core_ext/kernel_require.rb:59:in `require'
from /Library/Ruby/Site/2.3.0/rubygems/core_ext/kernel_require.rb:59:in `require'
from /Library/Ruby/Gems/2.3.0/gems/cocoapods-1.5.3/bin/pod:36:in `<top (required)>'
from /usr/local/bin/pod:23:in `load'
from /usr/local/bin/pod:23:in `<main>'
ruby版本2.3+的時(shí)候報(bào)這個(gè)錯(cuò)。
我做了的事情：卸載cocoapods，安裝2.2版本的ruby，重新安裝cocoapods。
你可能會(huì)遇到的問題：在安裝2.2ruby的時(shí)候，會(huì)發(fā)現(xiàn)這個(gè)版本不存在，這個(gè)時(shí)候終端會(huì)顯示：updating system:
接下來(lái)就是漫長(zhǎng)的等待（如果你的網(wǎng)絡(luò)不好，就找網(wǎng)絡(luò)好的地方再試，因?yàn)檫@個(gè)步驟我在公司一直卡死，一度懷疑自己的操作，晚上回家同樣的步驟，就可以了）
由于項(xiàng)目時(shí)間緊張，我也忘記截圖保存了，也沒有時(shí)間再仔細(xì)研究，就記錄一下我遇到的這個(gè)情況吧，希望對(duì)你有用
