_iterator_debug_level value '0' doesn't match value '2'

Question

I've just moved over a Visual Studio (C++) solution over to another computer, setup all the directories and settings as far as I can see, and did a clean/rebuild on the solution. I get the error above on a bunch of .obj's on compile, not sure what to do about it.

Solution 1

It seems that you are mixing object files built with different settings. Try to do a full clean rebuild and check all project file settings to make sure that the _ITERATOR_DEBUG_LEVEL macro is the same (e.g., you are not mixing debug and release built objects).

Solution 2

In some cases, mixing the options in

Properties>Configuration Properties>C/C++>Code Generation>Runtime Library

Between included Library(ies) and currently working project can cause this problem.

Depending on usage set it as /MD or /MT or /MDd or /MTd uniformly across all projects.

Solution 3

Mixing binaries (object files) is one reason; another (which I encountered) is the false definition of the _DEBUG macro in the release build. _DEBUG is not a standard macro, but used by Microsoft.

After editing the .vcxproj-file in Emacs I mistyped _DEBUG instead of NDEBUG for the release, and encountered precisely the same build error.

Solution 4

I have been trying to solve this issue for five days. The Point Cloud Library (PCL) code builds successfully in debug mode but fails in release mode.

I have reconfigured my library several times but it didn't help. I found the problem was that the release version was inheriting _DEBUG so I unchecked it under project properties >> Preprocessor >> Processor Definitions and it was solved.

Solution 5

After trying to solve issue for several days in a debug version of my VS2019 project. Setting the Project >> Properties >> C/C++ >> Processor _HAS_ITERATOR_DEBUGGING=0 definition worked for me.

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Comments

[Gyuri]

For some reason one of my projects had _SECURE_SCL=1 defined in release mode and this caused the linker error.

[korbes]

Another possibility is some project/source file defining _HAS_ITERATOR_DEBUGGING

[Nima.S-H]

I have same problem with pcl, can you explain more about how to solve that? thanks