title: Generate and upload key to sign flutter app on Intellij?
body: <p>I'm using Intellij IDE to work on a flutter app.</p>
  <p>I need to sign my app.</p>
  <p>Everyone give example on how to do so on Android Studio.</p>
  <p>How to do it without IDE ? On Intellij IDE ?</p>
  <p>Context:</p>
  <p><code>flutter build appbundle --debug</code>-&gt; success <code>Built build/app/outputs/bundle/debug/app-debug.aab.</code></p>
  <p><code>flutter build appbundle</code> -&gt; crash</p>
  <pre><code>* What went wrong:
  Execution failed for task ':app:signReleaseBundle'.
  &gt; A failure occurred while executing com.android.build.gradle.internal.tasks.FinalizeBundleTask$BundleToolRunnable
     &gt; kotlin.KotlinNullPointerException (no error message)
  
  </code></pre>