Xcode 8 Extension disabled
<p>I tried to create new  <code>Xcode 8</code> <code>Source Editor Extension</code>, but for some reason basic examples are always <code>disabled</code><em>(screenshot)</em> for me and I am not sure whether it is some bug with beta version or I am missing something.</p>

<p>So I created almost basic extension like from WWDC video and sample tutorials, and for some reason this menu item is always disabled.</p>

<p>I ran sudo /usr/libexec/xpccachectl in Terminal and reboot the Mac. I am using 10.11.5 Mac OS.</p>

<p>Also I tested working examples from github like <a href="https://github.com/cyanzhong/xTextHandler" rel="noreferrer">this</a> <em>(Screenshot 2)</em> or <a href="https://github.com/BalestraPatrick/CleanClosureXcode" rel="noreferrer">this</a> but they are also disabled. </p>

<p>** </p>

<p><em>So my questions is</em>: Is that some sort of bug as Xcode 8 is still in beta or some configuration is missing from my side to make extension work?</p>

<p><a href="https://i.stack.imgur.com/COXAu.png" rel="noreferrer"><img src="https://i.stack.imgur.com/COXAu.png" alt="enter image description here"></a></p>

<p><a href="https://i.stack.imgur.com/ewslC.png" rel="noreferrer"><img src="https://i.stack.imgur.com/ewslC.png" alt="enter image description here"></a></p>