[VS2012] Unable to find or open PDB file

Http://www.cnblogs.com/southernduck/archive/2012/11/23/2784966.html

When debugging a console program with VS2012, a prompt message appears:

"Wrt2txt.exe" (Win32): "F:\Users\Young\Documents\visual Studio 2012\projects\wrt2txt\debug\wrt2txt.exe" has been loaded. The symbol is loaded.
"Wrt2txt.exe" (Win32): "C:\Windows\System32\ntdll.dll" is loaded. Unable to find or open PDB file.
"Wrt2txt.exe" (Win32): "C:\Windows\System32\kernel32.dll" is loaded. Unable to find or open PDB file.
"Wrt2txt.exe" (Win32): "C:\Windows\System32\KernelBase.dll" is loaded. Unable to find or open PDB file.

Workaround:

Options > Debugging > General: Tick "Enable source server support"

Options > Debug > Symbols: Tick the symbol file, usually tick "Microsoft symbol server", preferably manually set the symbol cache path

[VS2012] Unable to find or open PDB file