title: What are C2471,C1083 errors related to a VC2008 project and how to correct them
body: <p>I had a VC2008 project very complicated.Inorder to understand it's inner workings I tried to simplify it and now I am getting 289 errors of the following type for most of the files:</p>
  
  <p>Error   5   error C2471: cannot update program database 'c:\users\ryan\documents\visual studio 2008\projects\vc\myinfo\cli\debug\vc90.pdb'  c:\users\ryan\documents\visual studio 2008\projects\vc\myinfo\cli\mediainfo\file__analyze_buffer_minimizesize.cpp   1   CLI</p>
  
  <p>Error   6   fatal error C1083: Cannot open program database file: 'c:\users\ryan\documents\visual studio 2008\projects\vc\myinfo\cli\debug\vc90.pdb': No such file or directory c:\users\ryan\documents\visual studio 2008\projects\vc\myinfo\cli\mediainfo\file__analyze_buffer_minimizesize.cpp   1   CLI</p>
  
  <p>My system : win7/VS2008</p>