Warning:cannot Find or open the PDB file

Visual Studio 2010 jumps out of a heap of warnings in the Output window after it runs normally

' Shaders.exe ': Loaded ' C:\Documents and Settings\User\My documents\visual Studio 2010\projects\shaders\win32\debug\shaders.exe ', SymbolsLoaded.' Shaders.exe ': Loaded ' C:\WINDOWS\system32\ntdll.dll ', CannotFind or open the PDB file' Shaders.exe ': Loaded ' C:\WINDOWS\system32\kernel32.dll ', CannotFind or open the PDB file' Shaders.exe ': Loaded ' C:\qt-everywhere-opensource-src-4.8.3\bin\QtCored4.dll ', SymbolsLoaded.' Shaders.exe ': Loaded ' C:\WINDOWS\system32\user32.dll ', CannotFind or open the PDB file' Shaders.exe ': Loaded ' C:\WINDOWS\system32\gdi32.dll ', CannotFind or open the PDB file' Shaders.exe ': Loaded ' C:\WINDOWS\system32\ole32.dll ', CannotFind or open the PDB file' Shaders.exe ': Loaded ' C:\WINDOWS\system32\advapi32.dll ', CannotFind or open the PDB file' Shaders.exe ': Loaded ' C:\WINDOWS\system32\rpcrt4.dll ', CannotFind or open the PDB file' Shaders.exe ': Loaded ' C:\WINDOWS\system32\secur32.dll ', CannotFind or open the PDB file' Shaders.exe ': Loaded ' C:\WINDOWS\system32\msvcrt.dll ', CannotFind or open the PDB file' Shaders.exe ': Loaded ' C:\WINDOWS\system32\ws2_32.dll ', CannotFind or open the PDB file' Shaders.exe ': Loaded ' C:\WINDOWS\system32\ws2help.dll ', CannotFind or open the PDB file' Shaders.exe ': Loaded ' C:\WINDOWS\system32\msvcp100d.dll ', SymbolsLoaded.' Shaders.exe ': Loaded ' C:\WINDOWS\system32\msvcr100d.dll ', SymbolsLoaded.' Shaders.exe ': Loaded ' C:\qt-everywhere-opensource-src-4.8.3\bin\QtGuid4.dll ', SymbolsLoaded.' Shaders.exe ': Loaded ' C:\WINDOWS\system32\comdlg32.dll ', CannotFind or open the PDB file' Shaders.exe ': Loaded ' C:\WINDOWS\system32\comctl32.dll ', CannotFind or open the PDB file' Shaders.exe ': Loaded ' C:\WINDOWS\system32\shell32.dll ', CannotFind or open the PDB file' Shaders.exe ': Loaded ' C:\WINDOWS\system32\shlwapi.dll ', CannotFind or open the PDB file' Shaders.exe ': Loaded ' C:\WINDOWS\system32\oleaut32.dll ', CannotFind or open the PDB file' Shaders.exe ': Loaded ' C:\WINDOWS\system32\imm32.dll ', CannotFind or open the PDB file' Shaders.exe ': Loaded ' C:\WINDOWS\system32\winmm.dll ', CannotFind or open the PDB file' Shaders.exe ': loaded  ' C:\WINDOWS\system32\winspool.drv ' , cannot Find or open the PDB file ' Shaders.exe ' : loaded ' C:\qt-everywhere-opensource-src-4.8.3\bin\QtOpenGLd4.dll ' ,  symbols Loaded The 
 PDB is the information file that Visual Studio uses for debug and belongs to the system's DLLs, so there are several workarounds: 
 
 (1) Turn off Debug module load Error prompt by opening Tools, Options, debugging, Output Window, Module Load Messages, Off 
 
 (2) Download the PDB file, open  Tools->options->deb Ugging->symbols    check box on Microsoft Symbol Servers 
 
 The first method is recommended, and each time you open project, you load a large number of PDB is still more intolerable.                

Warning:cannot Find or open the PDB file