my version is opencv-4.9.0,so is the opencv_contrib;build in VS2022，Qt version is 5.14.0;
It will build failed when I both check “Build_opencv_world” and “Build_opencv_cvv”。the compiler give link errors inthe picture;
is that the Qt version for MSVC, or for MinGW?
Qt version is for MSVC,2017_64
that’s the source tree for cvv: History for modules/cvv - opencv/opencv_contrib · GitHub
it’s on terminal life support. expect it to not work at all. if it does, you’re lucky.
anyway, “unresolved external” is a common error when trying to compile and link C++ programs.
it’s not even complaining about Qt itself, but about “qtutil”, which seems to be part of cvv.
check the cmake variables. cmake-gui helps with that. make sure your build actually found the Qt libraries.
browse the issues too: GitHub · Where software is built
if you don’t need cvv, just disable it from cmake-gui. look for variables containing cvv and see what you can uncheck.
I have checked cmake variables and that Qt path can be found.
It occurs when I both check “Build_opencv_world” and “Build_opencv_cvv” in cmake-gui.
Seems like that the link don’t have similar issue i have,Thanks a lot!!!