title: using Oracle.DataAccess.Client; not found after download and install OPD.NET
body: <p>I have visual studio 2012 and Oracle 11g and want to connect oracle database using OPD.NET
  .I downloaded the </p>
  
  <p>ODAC112040Xcopy_32bit zip file and un zip the file and click the intall.bat and configure.bat then I Open the visual studio 2012 and add refrence</p>
  
  <p>ODAC112040Xcopy_32bit\odp.net4\odp.net\bin\4<br>
  Oracle.DataAccess.DLL</p>
  
  <p>and add in DAL.CS file
  using Oracle.DataAccess.Client;</p>
  
  <p>but the type or namespace oracle could not found.Please guide me How I solve this problem</p>