Migration Dart Plugins

Your app is not using AndroidX

GoTo Flutter_Project -> android -> gradle.properties file. Open the gradle.properties file in any Text editor.

Add below lines in this file and Save the file.

<pre class="EnlighterJSRAW" data-enlighter-group="" data-enlighter-highlight="" data-enlighter-language="ini" data-enlighter-linenumbers="" data-enlighter-lineoffset="" data-enlighter-theme="" data-enlighter-title="">android.useAndroidX=true
android.enableJetifier=true

Open your Flutter Project Root directory in Command Prompt or Terminal and execute

<pre class="EnlighterJSRAW" data-enlighter-group="" data-enlighter-highlight="" data-enlighter-language="generic" data-enlighter-linenumbers="" data-enlighter-lineoffset="" data-enlighter-theme="" data-enlighter-title="">flutter clean