Error Message Cannot find or open the PDB file

Question

I tried running sample programs provided at NVIDIA s official site  Most of the programs ran smoothly except few where I get similar error messages  How can I fix that  Here s a sample of error message I got after running a program named  MatrixMul     Note  I have installed both x32 and x64 NVIDIA CUDA Toolkit v5 0 on my Window7x64 OS    matrixMul exe   Loaded  C  ProgramData NVIDIA Corporation CUDA Samples v5 0 bin win32 Debug matrixMul exe   Symbols loaded   matrixMul exe   Loaded  C  Windows SysWOW64 ntdll dll   Cannot find or open the PDB file  matrixMul exe   Loaded  C  Windows SysWOW64 kernel32 dll   Cannot find or open the PDB file  matrixMul exe   Loaded  C  Windows SysWOW64 KernelBase dll   Cannot find or open the PDB file  matrixMul exe   Loaded  C  Program Files  x86  NVIDIA GPU Computing Toolkit CUDA v5 0 bin cudart32 50 35 dll   Binary was not built with debug information   matrixMul exe   Loaded  C  Windows SysWOW64 apphelp dll   Cannot find or open the PDB file  matrixMul exe   Loaded  C  Windows AppPatch AcLayers dll   Cannot find or open the PDB file  matrixMul exe   Loaded  C  Windows SysWOW64 sspicli dll   Cannot find or open the PDB file  matrixMul exe   Loaded  C  Windows SysWOW64 msvcrt dll   Cannot find or open the PDB file  matrixMul exe   Loaded  C  Windows SysWOW64 rpcrt4 dll   Cannot find or open the PDB file  matrixMul exe   Loaded  C  Windows SysWOW64 cryptbase dll   Cannot find or open the PDB file  matrixMul exe   Loaded  C  Windows SysWOW64 sechost dll   Cannot find or open the PDB file  matrixMul exe   Loaded  C  Windows SysWOW64 user32 dll   Cannot find or open the PDB file  matrixMul exe   Loaded  C  Windows SysWOW64 gdi32 dll   Cannot find or open the PDB file  matrixMul exe   Loaded  C  Windows SysWOW64 lpk dll   Cannot find or open the PDB file  matrixMul exe   Loaded  C  Windows SysWOW64 usp10 dll   Cannot find or open the PDB file  matrixMul exe   Loaded  C  Windows SysWOW64 advapi32 dll   Cannot find or open the PDB file  matrixMul exe   Loaded  C  Windows SysWOW64 shell32 dll   Cannot find or open the PDB file  matrixMul exe   Loaded  C  Windows SysWOW64 shlwapi dll   Cannot find or open the PDB file  matrixMul exe   Loaded  C  Windows SysWOW64 ole32 dll   Cannot find or open the PDB file  matrixMul exe   Loaded  C  Windows SysWOW64 oleaut32 dll   Cannot find or open the PDB file  matrixMul exe   Loaded  C  Windows SysWOW64 userenv dll   Cannot find or open the PDB file  matrixMul exe   Loaded  C  Windows SysWOW64 profapi dll   Cannot find or open the PDB file  matrixMul exe   Loaded  C  Windows SysWOW64 winspool drv   Cannot find or open the PDB file  matrixMul exe   Loaded  C  Windows SysWOW64 mpr dll   Cannot find or open the PDB file  matrixMul exe   Loaded  C  Windows SysWOW64 imm32 dll   Cannot find or open the PDB file  matrixMul exe   Loaded  C  Windows SysWOW64 msctf dll   Cannot find or open the PDB file  matrixMul exe   Loaded  C  Windows SysWOW64 nvinit dll   Cannot find or open the PDB file  matrixMul exe   Loaded  C  Windows SysWOW64 nvcuda dll   Binary was not built with debug information   matrixMul exe   Loaded  C  Windows SysWOW64 setupapi dll   Cannot find or open the PDB file  matrixMul exe   Loaded  C  Windows SysWOW64 cfgmgr32 dll   Cannot find or open the PDB file  matrixMul exe   Loaded  C  Windows SysWOW64 devobj dll   Cannot find or open the PDB file  matrixMul exe   Loaded  C  Windows SysWOW64 dwmapi dll   Cannot find or open the PDB file  matrixMul exe   Unloaded  C  Windows SysWOW64 dwmapi dll   matrixMul exe   Loaded  C  Windows SysWOW64 nvapi dll   Cannot find or open the PDB file  matrixMul exe   Loaded  C  Windows SysWOW64 version dll   Cannot find or open the PDB file  matrixMul exe   Loaded  C  Windows SysWOW64 wintrust dll   Cannot find or open the PDB file  matrixMul exe   Loaded  C  Windows SysWOW64 crypt32 dll   Cannot find or open the PDB file  matrixMul exe   Loaded  C  Windows SysWOW64 msasn1 dll   Cannot find or open the PDB file The thread  Win32 Thread   0x12fc  has exited with code 0  0x0   The thread  Win32 Thread   0x18a0  has exited with code 0  0x0   The program   3104  matrixMul exe  Native  has exited with code 0  0x0

User · Answer

If this happens in visual studio then clean your project and run it again   Build --  Clean Solution  Run  or F5

User · Answer

If that message is bother you  You need run Visual Studio with administrative rights to apply this direction on Visual Studio     Tools-  Options-  Debugging-  Symbols and select check in a box  Microsoft Symbol Servers   mark load all modules then click Load all Symbols    Everything else Visual Studio will do it for you  and you will have this message under Debug in Output window  Native  has exited with code 0  0x0

User · Answer

The PDB file is a Visual Studio specific file that has the debugging symbols for your project  You can ignore those messages  unless you re hoping to step into the code for those dlls with the debugger  which is doubtful  as those are system dlls   In other words  you can and should ignore them  as you won t have the PDB files for any of those dlls  by default at least  it turns out you can actually obtain them when debugging via the Microsoft Symbol Server   All it means is that when you set a breakpoint and are stepping through the code  you won t be able to step into any of those dlls  which you wouldn t want to do anyways     Just for completeness  here s the official PDB description from MSDN      A program database  PDB  file holds debugging and project state information that allows incremental linking of a Debug configuration of your program  A PDB file is created when you compile a C C   program with  ZI or  Zi    Also for future reference  if you want to have PDB files for your own code  you would would have to build your project with either the  ZI or  Zi options enabled  you can set them via project properties --  C C   --  General  then set the field for  Debug Information Format    Not relevant to your situation  but I figured it might be useful in the future

User · Answer

Please check if the setting Generate Debug Info is Yes which under Project Propeties   Configuration Properties   Linker   Debugging tab  If not  try to change it to Yes  Those perticular pdb s   for ntdll dll  mscoree dll  kernel32 dll  etc   are for the windows API and shouldn t be needed for simple apps  However  if you cannot find pdb s for your own compiled projects  I suggest making sure the Project Properties   Configuration Properties   Debugging   Working Directory uses the value from Project Properties   Configuration Properties   General   Output Directory   You need to run Visual c   in  Run as Administrator  mode Right click on the executable and click  Run as Administrator

User · Answer

Working with VS 2013  Try the following Tools -  Options -  Debugging -  Output Window -  Module Load Messages -  Off It will disable the display of modules loaded

User · Answer

I m also a newbie to CUDA Visual studio and encountered the same problem with a couple of the samples   If you run DEBUG-  Start Debugging  then repeatedly step over  F10  you ll see the output window appear and get populated   Normal execution returns nomal completion status 0x0  as you observed  and the output window is closed

[visual-studio-2010] Error Message : Cannot find or open the PDB file

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