title: How build apk file in android studio?
body: <p>I'm new in android studio . I wrote an application and this run on gent motion successfully , gent motion android version is 4.1., then I want to get apk file , but this don't work . I go <code>build&gt;generate...</code> then keystore is build but apk file don't. </p>
  
  <p>And I go <code>build&gt;buildbundles&gt;apks...</code> but too don't build apk file. I find one apk file in my project folder in: </p>
  
  <p><code>project&gt;res&gt;apk &gt;apk_realese.apk</code></p>
  
  <p>and send this to my phone but don't install. </p>
  
  <p>My phone android version is 7.1, and my project android version is 4. 
  I don't know what do. </p>
  
  <p>Please help.</p>