pod

解决Could not find ‘CFPropertyList’ (>= 2.3.3, < 4.0) among 92 total gem(s) (Gem::MissingSpecError)

在pod install时报错 [crayon-6ab6b16b0a605774030727/] 重点在这句：Could not find 'CFPropertyList' (>= 2.3.3, < 4.0) among...