flutter build apk create old version app : <p>I am a new flutter programmer and  i am trying to build my release app in flutter  and when i run  </p>

<p><code>flutter run</code></p>

<p>everything work fine in debug and test mode.
 but when i was trying to build a release app with   </p>

<p><code>flutter build apk</code>  </p>

<p>it create a old first release app of mine . that i created before and i try to reset computer reset android and everything but not work what can i do to reset it and clear the cache?
im trying almost delete and reset everything but they dont work. 
what command that i have to run to fix it and create new version realease apk</p>
