title: react native app icon problem. App icon is not changing in app menu
body: <p>I am using react native version 0.58.</p>
  
  <p>I replaced my app icons with default ic_launcher.png in all mipmap folders.But app icon is still default android icon.I am sure that my png sizes are right for corresponding mipmap folder.</p>
  
  <p>thanks</p>
  
  <pre><code>&lt;manifest xmlns:android="http://schemas.android.com/apk/res/android"
        xmlns:tools="http://schemas.android.com/tools"
  package="com.cekilissepeti"&gt;
  
  &lt;uses-permission android:name="android.permission.INTERNET" /&gt;
  &lt;uses-permission android:name="android.permission.SYSTEM_ALERT_WINDOW"/&gt;
  &lt;uses-permission tools:node="remove" android:name="android.permission.READ_PHONE_STATE" /&gt;
  
  &lt;application
    android:name=".MainApplication"
    android:label="@string/app_name"
    android:icon="@mipmap/ic_launcher"
    android:roundIcon="@mipmap/ic_launcher_round"
    android:allowBackup="false"
    android:theme="@style/AppTheme"&gt;
    &lt;activity
      android:name=".MainActivity"
      android:label="@string/app_name"
      android:screenOrientation="portrait"
      android:configChanges="keyboard|keyboardHidden|orientation|screenSize"
      android:windowSoftInputMode="adjustResize"&gt;
      &lt;intent-filter&gt;
          &lt;action android:name="android.intent.action.MAIN" /&gt;
          &lt;category android:name="android.intent.category.LAUNCHER" /&gt;
      &lt;/intent-filter&gt;
    &lt;/activity&gt;
    &lt;activity android:name="com.facebook.react.devsupport.DevSettingsActivity" /&gt;
  &lt;/application&gt;
  </code></pre>
  
  <p></p>