[!] Unable to satisfy the following requirements: - `AFNetworking (~> 2.6.1)` required by `Podfile`

错误描述

控制台出现 如此错误：

$ pod update
Update all pods
Updating local specs repositories
Analyzing dependencies
[!] Unable to satisfy the following requirements:

- `AFNetworking (~> 2.6.1)` required by `Podfile`

[!] CocoaPods was not able to update the `master` repo. If this is an unexpected issue and persists you can inspect it running `pod repo update --verbose`

意思大概说你运行一下“$ pod repo update –verbose”检查一下，我运行完一堆语句，我又不懂是什么鬼。

解决错误-solve

$ pod search afnetworking

结果出来显示最新版本为2.5.2，所以改pod文件。即 pod ‘AFNetworking’, ‘~> 2.5.2’

-> AFNetworking (2.5.2)
A delightful iOS and OS X networking framework.
pod 'AFNetworking', '~> 2.5.2'
- Homepage: https://github.com/AFNetworking/AFNetworking - Source:   https://github.com/AFNetworking/AFNetworking.git - Versions: 2.5.2, 2.5.1, 2.5.0, 2.4.1, 2.4.0, 2.3.1, 2.3.0, 2.2.4, 2.2.3,
2.2.2, 2.2.1, 2.2.0, 2.1.0, 2.0.3, 2.0.2, 2.0.1, 2.0.0, 2.0.0-RC3, 2.0.0-RC2,
2.0.0-RC1, 1.3.4, 1.3.3, 1.3.2, 1.3.1, 1.3.0, 1.2.1, 1.2.0, 1.1.0, 1.0.1,
1.0, 1.0RC3, 1.0RC2, 1.0RC1, 0.10.1, 0.10.0, 0.9.2, 0.9.1, 0.9.0, 0.7.0,
0.5.1 [master repo]
- Subspecs:
- AFNetworking/Serialization (2.5.2)
- AFNetworking/Security (2.5.2)
- AFNetworking/Reachability (2.5.2)
- AFNetworking/NSURLConnection (2.5.2)
- AFNetworking/NSURLSession (2.5.2)
- AFNetworking/UIKit (2.5.2)

反思错误

- 以后出现问题一步一步查问题

- 检查Podfile文件 检查 # platform :ios, ‘6.0’ 有没有指定版本


- 检查 库的版本。例子：前同事前两天问我Podfile里面这么写的，结果报错：

# platform :ios, '7.0'
pod 'Alamofire'

后来 我在控制台输入

$ pod search Alamofire

运行结果

Elegant HTTP Networking in Swift
pod 'Alamofire', '~> 1.1.4'
- Homepage: https://github.com/Alamofire/Alamofire - Source:   https://github.com/Alamofire/Alamofire.git - Versions: 1.1.4, 1.1.3 [master repo]

似乎看不出来什么，去官网https://github.com/Alamofire/Alamofire看看，不出所料



over！