DatePicker: [A]ASP.MobileDatePicker cannot be cast to [B]ASP.MobileDatePicker. Type A originates from 'App_Web_jj42miqr, Version=0.0.0.0, Culture=neutral, PublicKeyToken=null' in the context 'Default' at location 'C:\Windows\Microsoft.NET\Framework64\v4.0.30319\Temporary ASP.NET Files\root\7ff7bd17\ad887717\App_Web_jj42miqr.dll'. Type B originates from 'App_Web_twglb1bu, Version=0.0.0.0, Culture=neutral, PublicKeyToken=null' in the context 'Default' at location 'C:\Windows\Microsoft.NET\Framework64\v4.0.30319\Temporary ASP.NET Files\root\7ff7bd17\ad887717\App_Web_twglb1bu.dll'.