I am using React native with Android. How can I update version number in the app? As I am getting this error.

I am generating file as per this url
<https://facebook.github.io/react-native/docs/signed-apk-android.html>

I have tried modifying AndroidManifest.xml file, but after I build it, that file gets automatically modified back.

```
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.facebook.react"
    android:versionCode="1"
    android:versionName="1.0" >

```

Here, I modified the XML:

```
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.facebook.react"
    android:versionCode="2"
    android:versionName="1.1" >

```

After, build file automatically changes back.

[![enter image description here](https://i.stack.imgur.com/bhOmm.png)](https://i.stack.imgur.com/bhOmm.png)