SDKApplicationDelegate Use of unresolved identifier : <p>I have two pods installed for facebook login</p>

<pre><code>pod 'FacebookCore'
pod 'FacebookLogin'
</code></pre>

<p>than imported FacebookCore in appdelegate. still it shows use of unresolved identifier error.</p>

<p><a href="https://i.stack.imgur.com/eCxmf.png" rel="noreferrer"><img src="https://i.stack.imgur.com/eCxmf.png" alt="unresolved identifier error"></a></p>

<p>I have also implemented tags in info.plist</p>

<pre><code>&lt;array&gt;
&lt;string&gt;fb---------&lt;/string&gt;
&lt;/array&gt;
&lt;key&gt;FacebookAppID&lt;/key&gt;
&lt;string&gt;-----------&lt;/string&gt;
&lt;key&gt;FacebookDisplayName&lt;/key&gt;
&lt;string&gt;-----------&lt;/string&gt;
</code></pre>

<p>Still not able to get SDKApplicationDelegate.</p>

<pre><code>func application(_ app: UIApplication, open url: URL,
                 options: [UIApplication.OpenURLOptionsKey: Any]) -&gt; Bool {
    if SDKApplicationDelegate.shared.application(app, open: url, options: options) {
        return true
    }
    return false
}
</code></pre>
