Google Play App Review doesn't show App Version code or name
<p>I have released an app on play store, and have received some reviews. In google play developer console, I could not see the version of app in few of the reviews. This is what I found under the APPLICATION heading.</p>

<p><code>Version code — Version name —</code></p>

<p>I tried searching around, but could not find any explanation for these to be absent. What may be the possible reasons?</p>