error LNK2001: unresolved external symbol, c++ project compilation

Asked Nov 26 '18 at 11:45

Active Nov 26 '18 at 11:57

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I want to build a project having the following structure:

Capture(main project)
    +subproject1
    +subproject2
    +subproject3
     ....
     ....

etc My projects links with opencv libraries. Although all subprojects build with no errors, when i build my main project(Capture) i got the following errors:

Severity    Code    Description Project File    Line    Suppression State
Error   LNK2001 unresolved external symbol "public: __cdecl cv::detail::CameraParams::CameraParams(struct cv::detail::CameraParams const &)" (??0CameraParams@detail@cv@@$$FQEAA@AEBU012@@Z)    Capture D:\Performance_capt\source\Capture\CapturingForm.obj    1

Any idea of what is going on?

edited Nov 26 '18 at 11:57

asked Nov 26 '18 at 11:45

alphonse

You used static libraries for opencv? and your subprojects? – Matthieu Brucher Nov 26 '18 at 11:51
I have just updated my error. Previous error was fixed by excluding the library i was talking about from dependencies. Now i get this – alphonse Nov 26 '18 at 11:57
Have you lined against the required library for this symbol? – Matthieu Brucher Nov 26 '18 at 11:58
@MatthieuBrucher, yes the only thing i could find is that it is a struct in opencv. It is contained in camera.hpp header file. – alphonse Nov 26 '18 at 12:15
That's not the missing bit, its CameraParams constructor that is missing. – Matthieu Brucher Nov 26 '18 at 12:17
@MatthieuBrucher any idea to guide me? – alphonse Nov 26 '18 at 12:19
Nope, I don't have opencv on my box. But you have. – Matthieu Brucher Nov 26 '18 at 12:20

error LNK2001: unresolved external symbol, c++ project compilation

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