title: Getting invalid attributes error when playing sound with MediaPlayer
body: <p>suddenly my app doesnt play a sound when I call <code>mediaPlayer.start()</code>.</p>
  
  <p>I get following error in log:</p>
  
  <pre><code>2020-05-29 20:43:57.165 4719-1953/? E/AudioSystem: invalid attributes { Content type: AUDIO_CONTENT_TYPE_UNKNOWN Usage: AUDIO_USAGE_UNKNOWN Source: -1 Flags: 0x800 Tags:  } when converting to stream
  </code></pre>
  
  <p>I am doing this one when the app starts:</p>
  
  <pre><code>mMediaPlayer = MediaPlayer.create(context, R.raw.restaurant_order_received)
  </code></pre>
  
  <p>Thanks for help</p>