MvxBind:Error - View type not found - fragment

MvxBind:Error - View type not found - fragment

I'm trying to add map as a part of my activity. Unfortunately when I put
fragment among other control I got the following error:
<fragment
android:id="@+id/map"
android:layout_width="fill_parent"
android:layout_height="250.0dp"
class="com.google.android.gms.maps.SupportMapFragment" />
MvxBind:Error: 26.04 View type not found - fragment
I'm trying to start it with Android 2.3 device using:
MonoDroid
googleplayservicesfroyo12-12.0.0 - GooglePlayServicesFroyoLib.dll
Mono.Android.Support.v4.dll
What could be the issue here? TIA!