Googlemap in VS2012

[JulieBiju]

Dear Friends,

I am using googlemap inside ESRI application with the help of the following link
http://rexdotnet.blogspot.com/2010/0...lverlight.html

Everything was working fine with VS2010 without any issues.
Now I upgraded my web application from VS2010 to VS2012, I m getting errors in the following lines.Customlayers not found errror is getting.Where could be the problem?Please help me

xmlns:customLayers="clr-namespace:ESRI_V_10_SIL4"


<esri:Map.Layers>
                <customLayers:MercatorSchemaTiledLayer Visible="False" />
                <customLayers:GoogleStaticMapLayer ID="roadmap" Visible="True"/>
                <customLayers:GoogleStaticMapLayerSatellite ID="satelite" Visible="False"/>
                <customLayers:GoogleStaticMapLayerTerrain ID="terrain" Visible="False"/>
                <customLayers:GoogleStaticMapLayerHybrid ID="hybrid" Visible="False"/>
                <esri:ArcGISDynamicMapServiceLayer ID="OperationalLayer" Opacity="0.7" Url="http://sampleserver1.arcgisonline.com/ArcGIS/rest/services/PublicSafety/PublicSafetyOperationalLayer..." />
                <esri:GraphicsLayer ID="MyGraphicsLayer" />
            </esri:Map.Layers>

[HyrumErnstrom]

Make sure you know the terms for using Google Map Tiles outside of the Google Maps environment.