I have very simple xamarin classic app with following .axml file

```
<?xml version="1.0" encoding="utf-8"?>
<android.support.constraint.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent">
   <TextView
           android:layout_width="wrap_content"
           android:layout_height="wrap_content"
           android:text="Hello World!"/>
</android.support.constraint.ConstraintLayout>

```

and following .cs file

```
[Activity(Label = "sa", MainLauncher = true, Icon = "@mipmap/icon")]
public class MainActivity : Activity
{
    protected override void OnCreate(Bundle savedInstanceState)
    {
        base.OnCreate(savedInstanceState);
        SetContentView(Resource.Layout.Main);//error throws here
    }
}

```

I found next code for .gradle to enable constraint layout

```
dependencies {
              compile 'com.android.support.constraint:constraint-layout:1.0.2'
           }

```

But, of course, it doesn't work in Xamarin.Android. I tried to install 
[Xamarin Android Constraint Layout 1.0.0-beta5](https://www.nuget.org/packages/Xamarin.Android.Support.Constraint.Layout/)

but it doesn't work for Mono.Android 6.0.

How I can solve my issue? Any guesses?