The dependency `AFNetworking (~> 2.5)` is not used in any concrete target
<p>I want to install AFNetworking but I have a problem, how can I fix and install? I used <a href="https://github.com/AFNetworking/AFNetworking/wiki/Getting-Started-with-AFNetworking" rel="noreferrer">Getting Started with AFNetworking</a> :</p>

<p>1. Download CocoaPods</p>

<pre><code>sudo gem install cocoapods
pod setup
</code></pre>

<p>2.a. Create a Podfile</p>

<pre><code>touch Podfile
open -a Xcode Podfile
</code></pre>

<p>2.b. And copy-paste this:</p>

<pre><code>source 'https://github.com/CocoaPods/Specs.git'
platform :ios, '7.0'
pod 'AFNetworking', '~&gt; 2.5'
</code></pre>