React/RCTEventEmitter.h file not found : <p>I am trying to implement PushNotificationIOS with a detached Expo app. I am running SDK 21.0.0 (React Native 0.48).</p>

<p>I am getting <code>React/RCTEventEmitter file not found</code> </p>

<p>I have completed the following steps:</p>

<ul>
<li>Open my <code>.xcworkspace</code> project</li>
<li>Drag the <code>RCTPushNotification.xcodeproj</code> into my Libraries folder</li>
<li>Added <code>libRCTPushNotification.a</code> into <code>App &gt; Build Phases &gt; Link Binary With Libraries</code></li>
<li>Added <code>$(SRCROOT)/../node_modules/react-native/Libraries</code> under Header Search Paths - I also tried without the <code>/../</code>. I have a bunch of Pods in the Header Search Paths list too.</li>
</ul>

<p>I then added the following into <code>AppDelegate.m</code> but when I click through to the file (⌘ + click), I get a question mark.</p>

<pre><code>#import &lt;React/RCTPushNotificationManager.h&gt;
</code></pre>

<p>If I change it to the below, it works, I can click through</p>

<pre><code>#import "RCTPushNotificationManager.h"
</code></pre>

<p><strong>However, this is my problem</strong></p>

<p>When I clean and build my project, I get the below error in <code>RCTPushNotificationManager.h</code> to say:</p>

<pre><code>'React/RCTEventEmitter.h' file not found
</code></pre>
