title: Cannot find or open the PDB file - PDB not built with DLL
body: <p>My Visual Studio 2013 ASP.NET webform application has 3 DLL assemblies.  When debugging, DLLs and PDBs are created in the same Temporary ASP.NET Files directory for only two of the three DLLs (the Project/VB module and a C# module.  The third DLL is also a C# module, and the PDB is not being generated to the same directory as the DLL.</p>
  
  <p>The symbols for that last problem module are not being found.  When I attempt to load the symbol files manually selecting a PDB that was created on the same Date/Time as the DLL, I get the error "A matching symbol file was not found in this folder."</p>
  
  <p>Why would PDBs be built in the DLL's directory for two modules and not for the third module?  I've tried a variety of options on the Symbol Settings dialog, changing the Symbol file locations and cashe directory, cleaning and rebuilding the solution, and the results are not changed.</p>