when I change Pods file I get this error after command pod install
/Users/mac/Documents/Projects/Test/Podfile:1: syntax error, unexpected tINTEGER, expecting '('
platform :ios, ‘7.0’
^. Updating CocoaPods might fix the issue.
So how I can update it?
Replace the 'curly quotes' around the platform with single quotes:
platform :ios, '7.0'
Assuming that's the issue and you have installed cocoapods via gem:
gem update --system
updates gem itself
gem update cocoapods
updates cocoapods.
Just had and then resolved this issue. Using TextEdit on Mac the quotes are 'smart quotes' (as the other answers note.). However, I resolved this issue not by just turning off smart quotes, but by changing the document type from Rich Text to Plaintext, then deleting the original file and rebuilding it from scratch.
$ pod install worked fine for me after that.
Always open podfile in xcode, Otherwise quotes will changed.
platform :ios, '7.0'
After many variations, i simply tried:
platform :ios, "7.1"
and my particular cocoapods troubles went away.
Smart quotes options is by default on in TextEditor. Open podfile in vi and just place single quote before and after pod spec, it would work.
来源：https://stackoverflow.com/questions/19789937/cocoa-pods-issue-after-modify-pods-file