Android Question Google Maps

Sub btnNearest_Click
    Dim Lat As Double
    Dim Lon As Double
    Lat = -26.18586111
    Lon = 28.03805556
    Dim MarkerText As String = "Provincial Commissioner"
    Dim ExtraText As String = "16 Empire Rd. Parktown"
    gmap = MapFragment1.GetMap
    Dim m1 As Marker = gmap.AddMarker(Lat, Lon, MarkerText) <<---Error Here
   
    Dim CameraPosition1 As CameraPosition
    CameraPosition1.Initialize(Lat, Lon, 17)
    gmap.AnimateCamera(CameraPosition1)

    m1.Snippet = ExtraText
    pnlMap.Visible = True
End Sub

Map is not ready yet.
Error occurred on line: 314 (Main)
java.lang.RuntimeException: Object should first be initialized (GoogleMap).
    at anywheresoftware.b4a.AbsObjectWrapper.getObject(AbsObjectWrapper.java:50)
    at anywheresoftware.b4a.objects.MapFragmentWrapper$GoogleMapWrapper.AddMarker(MapFragmentWrapper.java:262)
    at java.lang.reflect.Method.invoke(Native Method)
    at anywheresoftware.b4a.shell.Shell.runMethod(Shell.java:708)
    at anywheresoftware.b4a.shell.Shell.raiseEventImpl(Shell.java:337)
    at anywheresoftware.b4a.shell.Shell.raiseEvent(Shell.java:247)
    at java.lang.reflect.Method.invoke(Native Method)
    at anywheresoftware.b4a.ShellBA.raiseEvent2(ShellBA.java:134)
    at anywheresoftware.b4a.BA.raiseEvent2(BA.java:157)
    at anywheresoftware.b4a.BA.raiseEvent(BA.java:153)
    at anywheresoftware.b4a.objects.ViewWrapper$1.onClick(ViewWrapper.java:78)
    at android.view.View.performClick(View.java:5210)
    at android.view.View$PerformClick.run(View.java:21183)
    at android.os.Handler.handleCallback(Handler.java:739)
    at android.os.Handler.dispatchMessage(Handler.java:95)
    at android.os.Looper.loop(Looper.java:148)
    at android.app.ActivityThread.main(ActivityThread.java:5452)
    at java.lang.reflect.Method.invoke(Native Method)
    at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:762)
    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:652)