When I'm running an app on Android Studio the "Choose device" box doesn't show
<p>I'm trying to run a simple code on my phone (Genymotion doesn't work, so I had to run it on my phone directly) and it tells me that "External task execution finished" but Choose device box doesn't pop up when I press "Run". I installed:</p>

<ol>
<li>ADB driver.</li>
<li>My phone is Xperia Sp, so I change MTP to MSC (There's no PTP).</li>
<li>USB debugging is on.</li>
</ol>

<p>Furthermore, the Android Device Monitor is showing my device, so there's no problem with identifying my phone.</p>