Downgrade the android version cause error : <p>Developer, I am learning to develop xamarin.android application
I am just downgraded the my app android version from 7.0 to 4.3 to run the app on my mobile so it causes this error</p>

<p>also, refer some tutorials for beginners </p>

<p><a href="https://i.stack.imgur.com/KdCQx.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/KdCQx.png" alt="This is the actual screen shot of error"></a>
<a href="https://i.stack.imgur.com/iSLwp.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/iSLwp.png" alt="This is the full detail of error"></a></p>
