error LNK2038 mismatch detected for ITERATOR DEBUG LEVEL value 0 doesn t match value 2 in main obj

Question

I have read a lot of solutions to my problem but none helped  I tried clean  rebuild  Reinstalled visual 2010 and change from professional to ultimate  But still I dont know why I have this error   My project look like this  1 Exe Solution to test my static library  1 Dll Solution static library  Code which is converted to dll is using function from 1 lib called ClassificationFramework  I provided this lib as headers and cpp so basically source code  In Exe solution I linked my generated library   some other libs to run it   ClassificationFramework dll  Everything works fine when I use Release but when I change to Debug  because I want to debug some stuff  I am tired of skipping debugger in release mode  I get this       2 gt Link      2 gt   ClassificationFramework lib SampleClass obj    MSIL  netmodule or module compiled with  GL found  restarting link with  LTCG  add  LTCG to the link command line to improve linker performance     2 gt ClassificationFramework lib SampleClass obj    error LNK2038  mismatch detected for   ITERATOR DEBUG LEVEL   value  0  doesn t match value  2  in main obj     2 gt ClassificationFramework lib SampleNamesSet obj    error LNK2038  mismatch detected for   ITERATOR DEBUG LEVEL   value  0  doesn t match value  2  in main obj     2 gt ClassificationFramework lib SampleSet obj    error LNK2038  mismatch detected for   ITERATOR DEBUG LEVEL   value  0  doesn t match value  2  in main obj     2 gt ClassificationFramework lib DirectoryReader obj    error LNK2038  mismatch detected for   ITERATOR DEBUG LEVEL   value  0  doesn t match value  2  in main obj     2 gt LINK   warning LNK4098  defaultlib  MSVCRT  conflicts with use of other libs  use  NODEFAULTLIB library     2 gt C  Documents and Settings Administrator My Documents Visual Studio 2010 Projects Transformer Debug Tester exe   fatal error LNK1319  4 mismatches detected   When I build in Release I also got these warnings       1 gt Link      1 gt   Generating code     1 gt c  program files  x86  microsoft visual studio 10 0 vc include utility 101   warning C4748   GS can not protect parameters and local variables from local buffer overrun because ptimizations are disabled in function     1 gt c  users kasia documents visual studio 2010 projects classificationframework classificationframework directoryreader cpp 30   warning C4748   GS can not protect parameters and local variables from local buffer overrun because optimizations are disabled in function     1 gt c  program files  x86  microsoft visual studio 10 0 vc include xstring 1589   warning C4748   GS can not protect parameters and local variables from local buffer overrun because optimizations are disabled in function     1 gt c  users kasia documents visual studio 2010 projects classificationframework classificationframework samplenamesset cpp 226   warning C4748   GS can not protect parameters and local variables from local buffer overrun because optimizations are disabled in function     1 gt c  users kasia documents visual studio 2010 projects classificationframework classificationframework directoryreader cpp 60   warning C4748   GS can not protect parameters and local variables from local buffer overrun because optimizations are disabled in function     1 gt c  users kasia documents visual studio 2010 projects classificationframework classificationframework samplenamesset cpp 199   warning C4748   GS can not protect parameters and local variables from local buffer overrun because optimizations are disabled in function     1 gt c  users kasia documents visual studio 2010 projects classificationframework classificationframework sampleset cpp 27   warning C4748   GS can not protect parameters and local variables from local buffer overrun because optimizations are disabled in function     1 gt c  users kasia documents visual studio 2010 projects classificationframework classificationframework samplenamesset cpp 59   warning C4748   GS can not protect parameters and local variables from local buffer overrun because optimizations are disabled in function     1 gt   Finished generating code     1 gt ClassificationFramework lib SampleSet obj    warning LNK4099  PDB  vc100 pdb  was not found with  ClassificationFramework lib SampleSet obj   or at  C  Documents and Settings Administrator My Documents Visual Studio 2010 Projects Transformer Release vc100 pdb   linking object as if no debug info     1 gt ClassificationFramework lib SampleNamesSet obj    warning LNK4099  PDB  vc100 pdb  was not found with  ClassificationFramework lib SampleNamesSet obj   or at  C  Documents and Settings Administrator My Documents Visual Studio 2010 Projects Transformer Release vc100 pdb   linking object as if no debug info     1 gt ClassificationFramework lib SampleClass obj    warning LNK4099  PDB  vc100 pdb  was not found with  ClassificationFramework lib SampleClass obj   or at  C  Documents and Settings Administrator My Documents Visual Studio 2010 Projects Transformer Release vc100 pdb   linking object as if no debug info     1 gt ClassificationFramework lib DirectoryReader obj    warning LNK4099  PDB  vc100 pdb  was not found with  ClassificationFramework lib DirectoryReader obj   or at  C  Documents and Settings Administrator My Documents Visual Studio 2010 Projects Transformer Release vc100 pdb   linking object as if no debug info     1 gt   Tester vcxproj - gt  C  Documents and Settings Administrator My Documents Visual Studio 2010 Projects Transformer Release Tester exe     I found that Debugger skips because of wrong path to pdb files    Tester exe   Loaded  C  Documents and Settings Administrator My Documents Visual Studio 2010 Projects Work Release Tester exe   Symbols loaded   Tester exe   Loaded  C  WINDOWS SysWOW64 kernel32 dll   Cannot find or open the PDB file  Tester exe   Unloaded  C  WINDOWS SysWOW64 kernel32 dll   Tester exe   Loaded  C  WINDOWS SysWOW64 ntdll dll   Cannot find or open the PDB file  Tester exe   Loaded  C  WINDOWS SysWOW64 kernel32 dll   Cannot find or open the PDB file  Tester exe   Loaded  C  OpenCV2 2 bin opencv core220 dll   Binary was not built with debug information   Tester exe   Loaded  C  WINDOWS SysWOW64 msvcp100 dll   Symbols loaded   Tester exe   Loaded  C  WINDOWS SysWOW64 msvcr100 dll   Symbols loaded   Tester exe   Loaded  C  OpenCV2 2 bin opencv highgui220 dll   Binary was not built with debug information   Tester exe   Loaded  C  WINDOWS SysWOW64 user32 dll   Cannot find or open the PDB file  Tester exe   Loaded  C  WINDOWS SysWOW64 gdi32 dll   Cannot find or open the PDB file  Tester exe   Loaded  C  WINDOWS SysWOW64 advapi32 dll   Cannot find or open the PDB file  Tester exe   Loaded  C  WINDOWS SysWOW64 rpcrt4 dll   Cannot find or open the PDB file  Tester exe   Loaded  C  WINDOWS SysWOW64 secur32 dll   Cannot find or open the PDB file  Tester exe   Loaded  C  WINDOWS SysWOW64 ole32 dll   Cannot find or open the PDB file  Tester exe   Loaded  C  WINDOWS SysWOW64 msvcrt dll   Cannot find or open the PDB file  Tester exe   Loaded  C  WINDOWS WinSxS x86 Microsoft Windows Common-Controls 6595b64144ccf1df 5 82 3790 4770 x-ww A689AB02 comctl32 dll   Cannot find or open the PDB file  Tester exe   Loaded  C  WINDOWS SysWOW64 avifil32 dll   Cannot find or open the PDB file  Tester exe   Loaded  C  WINDOWS SysWOW64 winmm dll   Cannot find or open the PDB file  Tester exe   Loaded  C  WINDOWS SysWOW64 msacm32 dll   Cannot find or open the PDB file  Tester exe   Loaded  C  WINDOWS SysWOW64 msvfw32 dll   Cannot find or open the PDB file  Tester exe   Loaded  C  WINDOWS SysWOW64 shell32 dll   Cannot find or open the PDB file  Tester exe   Loaded  C  WINDOWS SysWOW64 shlwapi dll   Cannot find or open the PDB file  Tester exe   Loaded  C  WINDOWS SysWOW64 avicap32 dll   Cannot find or open the PDB file  Tester exe   Loaded  C  WINDOWS SysWOW64 version dll   Cannot find or open the PDB file  Tester exe   Loaded  C  OpenCV2 2 bin opencv imgproc220 dll   Binary was not built with debug information   Tester exe   Loaded  C  WINDOWS SysWOW64 imm32 dll   Cannot find or open the PDB file  Tester exe   Loaded  C  WINDOWS SysWOW64 lpk dll   Cannot find or open the PDB file  Tester exe   Loaded  C  WINDOWS SysWOW64 usp10 dll   Cannot find or open the PDB file  Tester exe   Loaded  C  WINDOWS WinSxS wow64 Microsoft Windows Common-        Controls 6595b64144ccf1df 6 0 3790 4770 x-ww 8D2E3180 comctl32 dll   Cannot find or open the PDB file The program   4984  Tester exe  Native  has exited with code 0  0x0     When i go to Debug- Windows- Modules i see that he cannot find those pdb files or something  How i can say him that those files are here here and here  I tried to run MSvisual as administrator but that too didnt help  I used microsoft server to load pdb files but also didnt help

User · Answer

I make a little update on this issue  as I just had the same error today on an application which is linking against a static lib  after I migrated the old Visual 6 project to Visual Studio 2012   In my case the error was that I mistakenly compiled the Release version of the static lib with  MDd instead of  MD  whereas the application is  MD in release  Setting the correct  MD in the static lib project solved the issue   This is done in Project properties   Select Configuration Properties   C C     Code Generation in the tree and the option Runtime Library set to the same on all your dependencies projects and application

User · Answer

I had similar problem  but the wrong setting was in the extern  lib file from which I did not have sources  If you do not have the source files  the simplest workaround is to just change the content of the  lib file   Open the  lib file in an editor  I used PSPad  bud Windows notepad is also possible  and replace all occurences of  ITERATOR DEBUG LEVEL 2 to  ITERATOR DEBUG LEVEL 0

User · Answer

If you would like to purposely link your project A in Release against another project B in Debug  say to keep the overall performance benefits of your application while debugging  then you will likely hit this error  You can fix this by temporarily modifying the preprocessor flags of project B to disable iterator debugging  and make it match project A    In Project B s  Debug  properties  Configuration Properties -  C C   -  Preprocessor  add the following to Preprocessor Definitions    HAS ITERATOR DEBUGGING 0  ITERATOR DEBUG LEVEL 0   Rebuild project B in Debug  then build project A in Release and it should link correctly

User · Answer

I had the same issue between debug and release libraries  The mistake was in the solution properties   Configurations properties   Configurations   The projects configurations did not match the main configuration   platform

User · Answer

I had a mismatch between projects  one with multi-byte character set  the other with Unicode   Correcting these to agree on Unicode corrected the problem

User · Answer

I also had this issue and it arose because I re-made the project and then forgot to re-link it by reference in a dependent project     Thus it was linking by reference to the old project instead of the new one     It is important to know that there is a bug in re-adding a previously linked project by reference  You ve got to manually delete the reference in the vcxproj and only then can you re-add it   This is a known issue in Visual studio according to msdn

User · Answer

Try change  DEBUG to NDEBUG macro definition in C   project properties  for Release configuration  Configuration Properties -  C C   -  Preprocessor -  Preprocessor Definitions

User · Answer

I had this problem as well   My problem was that I had copy pasted the library include directories from my debug configurations   So project  Indep  was including static library  Dep lib  from     Debug   even in release   The fix was to change the library directory to     Release  so I caught the release-built library rather than the previously-built debug library

User · Answer

Try this  Goto project property -  C C   -  Code generation -  Runtime Library Select from combobox value   Multi-threaded DLL   MD  It work for me

User · Answer

Like all the other answers  I checked my Configuration Properties - gt  C C   - gt  Preprocessor directives  In my case I had the NDEBUG correctly defined in Release  but I also had   SECURE SCL 1   Removing that one fixed the issue

User · Answer

In my case the NDEBUG macro definition in the  Preprocessor Definitions  needed to be changed to  DEBUG   I am building a static library for use in a  exe which was complaining about the very same error listed in the question   Go to Configuration Properties   Project  menu   Properties  menu item  and then click the C C    section  then the Preprocessor section under that  and then edit your Preprocessor Definitions so that NDEBUG is changed to  DEBUG  to match the setting in the exe

User · Answer

In VS2010 iterator debug level defaults to 2 in debug and is disabled in release  One of the dlls you are using probably has iterator debugging turned off in debug either because it was built in an older version of visual studio or they explicitly added the defines to the project   Search for  ITERATOR DEBUG LEVEL and  SECURE SCL remove them or set them appropriately in all projects and sources and rebuild everything    ITERATOR DEBUG LEVEL   0    disabled  for release builds   ITERATOR DEBUG LEVEL   1    enabled  if  SECURE SCL is defined   ITERATOR DEBUG LEVEL   2    enabled  for debug builds    In short you are probably mixing release and debug dlls  Don t linked release dlls in debug or vice versa

User · Answer

The error can be caused by mixing together debug builds and release builds in same executable or dll    in the vs configuration manager  are some of your projects in debug mode and some in release mode  is one of your release projects has the preprocessor symbol DEBUG or  DEBUG defined  is one of your debug projects has the preprocessor symbol NDEBUG defined

User · Answer

In my case  for both Debug and Release  the solution was to clean then rebuild entire solution    Edit  true in my case also  VS2017  step1  clean the project  step2  change configuration mode from debug to release or vice versa   step3  clean the project  step4  build in the required configuration mode    PS  to change config mode  find config settings under build menu

User · Answer

Last chance  if other ways don t work   define  ALLOW ITERATOR DEBUG LEVEL MISMATCH macro in all projects  It will disable   pragma detect mismatch  feature which is used in CRT headers

User · Answer

Small addition to the help above  I got the mismatch error after adding a static libto an older VST solution using VST 2017   VST now generates  stdfax h  for precompiled headers containing these 2 lines      Turn off iterator debugging as it makes the compiler very slow on large methods in debug builds  define  HAS ITERATOR DEBUGGING 0

User · Answer

I had the same problem today  VS2010   I built Release   Win32  then tried to build Debug   Win32  and got this message   I tried cleaning Debug   Win32 but the error still persisted  I then cleaned Release   Win32  then cleaned Debug   Win32  and then it built fine

User · Answer

opencv core245 lib dxt obj    error LNK2038  mismatch detected for   ITERATOR DEBUG LEVEL   value  0  doesn t match value  2  in test obj   I got error like this  I have opencv core245 lib and opencv core245d lib in Linker- Input- Additional dependenc  Since this two were confilicting I removed first one opencv core245 lib  Error gone

User · Answer

I resolved my trouble in correcting the  Additional Library Directory   this one was wrong in indicating    SolutionDir  Release   I changed it in    SolutionDir    IntDir    To correct it  open your project properties -  Configuration Properties -  Linker -  General -  Additional Library Directory  I hope this will help some poeples with the same trouble

User · Answer

I managed to get rid of this error  in my case using Ogre3D   Bullet  by changing the dependency libraries to the debug versions in Project Properties -  Linker -  Input -  Additional Dependencies  VC10    I changed BulletCollision lib to BulletCollision debug lib  for debug configuration  and it compiled

[c++] error LNK2038: mismatch detected for '_ITERATOR_DEBUG_LEVEL': value '0' doesn't match value '2' in main.obj

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