objective-c - cocoa pods error! undefined local variable or method

Question

我在使用cocoa pods 的时候，出现下面的错误
[!] Invalid Podfile file: undefined local variable or method `afnetworking' for #<Pod::Podfile:0x007fa6c11591f8>. Updating CocoaPods might fix the issue.

关键是我不管导入什么第三方库都会出现这个，一直都导不进去

profile里面我只是写了
pod ‘sdwebimage’

也没有用到afnetworking，ruby环境重新装，cocoa pods 更新什么的都试过了，连mac的系统都更新了，还是不行，，就是不行！！！
求个大神帮我看看怎么回事

Answer 1

The problem is not very clear. You can try to check your Podfile. The correct way is this:

pod 'AFNetworking', '~> 2.5'

Many people write their quotation marks like this

pod ‘AFNetworking’, ‘~> 2.5′ 

It’s best to use vim when editing files, give it a try. Be sure to follow the official format. For example:

platform :ios, '9.0'

Many people will add an extra space after:, which will also cause an error.

Answer 2

No, no matter what I enter, I get an error
[!] Invalid Podfile file: undefined local variable or method `afnetworking' for #<Pod::Podfile:0x007fa6c11591f8>. Updating CocoaPods might fix the issue.

The key point is that no matter whether I import any framework or not, I always get an error saying that afnetworking is not found. When I import other frameworks, such as sdwebimage, I always get an error saying that afnetworking is not found.

The afnetworking framework is not used, why do I always get an error and cannot find afnetworking?