title: How to change Android minSdkVersion in flutter project
body: <p>I was trying to start a flutter project for an App using bluetooth to communicate. For that, I was using <a href="https://github.com/pauldemarco/flutter_blue" rel="noreferrer">flutter blue</a>.</p>
  
  <p>Unfortunately, when trying to run (on an Android device) the first example I created I was met with the following error:</p>
  
  <pre><code>FAILURE: Build failed with an exception.
  
    * What went wrong:
    Execution failed for task ':app:processDebugManifest'.
    &gt; Manifest merger failed : uses-sdk:minSdkVersion 16 cannot be smaller than version 19 declared in library [:flutter_blue] /home/maldus/Projects/flutter/polmac/build/flutter_blue/intermediates/manifests/full/debug/AndroidManifest.xml as the library might be using APIs not available in 16
      Suggestion: use a compatible library with a minSdk of at most 16,
              or increase this project's minSdk version to at least 19,
              or use tools:overrideLibrary="com.pauldemarco.flutterblue" to force usage (may lead to runtime failures)
  </code></pre>
  
  <p>If I were on Android Studio, I'd know how to bump up the Android minSdkVersion, but on a flutter project (using VSCode) I was a little lost.</p>
  
  <p>Is it possible to increase the minSdkVersion with flutter, and how?</p>