Cannot find or open the PDB file

edit

I used windows 8 64bit machine & opencv 2.4.8 & vs2012express

I have error like this

Please give me a immediate response to this matter

'FaceDetection3.exe' (Win32): Loaded 'C:\Users\Samith\Documents\Visual Studio 2012\Projects\FaceDetection3\x64\Debug\FaceDetection3.exe'. Symbols loaded. 'FaceDetection3.exe' (Win32): Loaded 'C:\Windows\System32\ntdll.dll'. Symbols loaded. 'FaceDetection3.exe' (Win32): Loaded 'C:\Program Files\AVAST Software\Avast\snxhk64.dll'. Cannot find or open the PDB file. 'FaceDetection3.exe' (Win32): Loaded 'C:\Windows\System32\kernel32.dll'. Symbols loaded. 'FaceDetection3.exe' (Win32): Loaded 'C:\Windows\System32\KernelBase.dll'. Symbols loaded. 'FaceDetection3.exe' (Win32): Loaded 'C:\OpenCV\opencv2.4.8\build\x64\vc11\bin\opencv_core248.dll'. Cannot find or open the PDB file. 'FaceDetection3.exe' (Win32): Loaded 'C:\OpenCV\opencv2.4.8\build\x64\vc11\bin\opencv_imgproc248.dll'. Cannot find or open the PDB file. 'FaceDetection3.exe' (Win32): Loaded 'C:\OpenCV\opencv2.4.8\build\x64\vc11\bin\opencv_highgui248.dll'. Cannot find or open the PDB file. 'FaceDetection3.exe' (Win32): Loaded 'C:\OpenCV\opencv2.4.8\build\x64\vc11\bin\opencv_features2d248.dll'. Cannot find or open the PDB file. 'FaceDetection3.exe' (Win32): Loaded 'C:\OpenCV\opencv2.4.8\build\x64\vc11\bin\opencv_calib3d248.dll'. Cannot find or open the PDB file. 'FaceDetection3.exe' (Win32): Loaded 'C:\Windows\System32\msvcp110d.dll'. Symbols loaded. 'FaceDetection3.exe' (Win32): Loaded 'C:\Windows\System32\msvcr110d.dll'. Symbols loaded. 'FaceDetection3.exe' (Win32): Loaded 'C:\Windows\System32\msvcp110.dll'. Cannot find or open the PDB file. 'FaceDetection3.exe' (Win32): Loaded 'C:\Windows\System32\msvcr110.dll'. Cannot find or open the PDB file. 'FaceDetection3.exe' (Win32): Loaded 'C:\Windows\System32\user32.dll'. Symbols loaded. 'FaceDetection3.exe' (Win32): Loaded 'C:\Windows\System32\gdi32.dll'. Symbols loaded. 'FaceDetection3.exe' (Win32): Loaded 'C:\Windows\System32\ole32.dll'. Symbols loaded. 'FaceDetection3.exe' (Win32): Loaded 'C:\Windows\System32\oleaut32.dll'. Symbols loaded. 'FaceDetection3.exe' (Win32): Loaded 'C:\Windows\System32\advapi32.dll'. Symbols loaded. 'FaceDetection3.exe' (Win32): Loaded 'C:\Windows\System32\comctl32.dll'. Symbols loaded. 'FaceDetection3.exe' (Win32): Loaded 'C:\Windows\System32\msvfw32.dll'. Symbols loaded. 'FaceDetection3.exe' (Win32): Loaded 'C:\Windows\System32\avifil32.dll'. Symbols loaded. 'FaceDetection3.exe' (Win32): Loaded 'C:\Windows\System32\avicap32.dll'. Symbols loaded. 'FaceDetection3.exe' (Win32): Loaded 'C:\OpenCV\opencv2.4.8\build\x64\vc11\bin\opencv_flann248.dll'. Cannot find or open the PDB file. 'FaceDetection3.exe' (Win32): Loaded 'C:\Windows\System32\combase.dll'. Symbols loaded. 'FaceDetection3.exe' (Win32): Loaded 'C:\Windows\System32\msvcrt.dll'. Symbols loaded. 'FaceDetection3.exe' (Win32): Loaded 'C:\Windows\System32\rpcrt4.dll'. Symbols loaded. 'FaceDetection3.exe' (Win32): Loaded 'C:\Windows\System32\sechost.dll'. Symbols loaded. 'FaceDetection3.exe' (Win32): Loaded 'C:\Windows\System32\winmm.dll'. Symbols loaded. 'FaceDetection3.exe' (Win32): Loaded 'C:\Windows\System32\shell32.dll'. Symbols loaded. 'FaceDetection3.exe' (Win32): Loaded 'C:\Windows\System32\msacm32.dll'. Symbols loaded. 'FaceDetection3.exe' (Win32): Loaded 'C:\Windows\System32\version.dll'. Symbols loaded. 'FaceDetection3.exe' (Win32): Loaded 'C:\Windows\System32\winmmbase.dll'. Symbols loaded. 'FaceDetection3.exe' (Win32): Loaded 'C:\Windows\System32\shlwapi.dll'. Symbols loaded. 'FaceDetection3.exe' (Win32): Loaded 'C:\Windows\System32\imm32.dll ... (more)