在facebook的文档中：
这里： https://developers.facebook.com/docs/ios/getting-started
这里： https://developers.facebook.com/docs/ios/getting-started
这是写的,我们可以使用：
pod \'Facebook-iOS-SDK\'
在我们的项目中安装pod.但是我将其添加到第10行的pod文件中,并尝试运行pod install,在终端上显示以下错误：
[!] Oh no,an error occurred. It appears to have originated from your Podfile at line 10. Search for existing github issues similar to yours: https://github.com/CocoaPods/CocoaPods/search?q=%2FUsers%2Fprajeetshrestha%2FDesktop%2FHotRents%2FPodfile%3A10%3A+Syntax+error%2C+unexpected+%24undefined%0A++++pod+%5C%27%2FUsers%2Fprajeetshrestha%2FDeskt...%0A+++++++++%5E%0A%2FUsers%2Fprajeetshrestha%2FDesktop%2FHotRents%2FPodfile%3A13%3A+Syntax+error%2C+unexpected+tCONSTANT%2C+expecting+keyword_end%0Atarget+%27HotRentsTests%27+do%0A+++++++++++++++++++++%5E%0A%2FUsers%2Fprajeetshrestha%2FDesktop%2FHotRents%2FPodfile%3A13%3A+unterminated+string+meets+end+of+file%0A%2FUsers%2Fprajeetshrestha%2FDesktop%2FHotRents%2FPodfile%3A13%3A+Syntax+error%2C+unexpected+end-of-input%2C+expecting+keyword_end&type=Issues If none exists,create a ticket,with the template displayed above,on: https://github.com/CocoaPods/CocoaPods/issues/new
解决方法
Facebook-iOS-SDK已被弃用(请参阅使用pod安装时可以提供的信息Cocapods).
根据Facebook你应该使用：
pod "FBSDKCoreKit"; pod "FBSDKLoginKit"; pod "FBSDKShareKit"; pod "FBSDKMessengerShareKit";
