unable to access CUDA and DNN from opencv2 liberary - c++

Question

im trying to set up my vs and vsc to run opencv with cuda but im getting this error when i try to include it in my program
[build] Starting build
[proc] Executing command: "C:\Program Files\CMake\bin\cmake.EXE" --build "c:/Users/hamoz/Documents/OCV C++ VSC/build" --config Release --target opencvgputest -j 14 --
[build] MSBuild version 17.4.1+9a89d02ff for .NET Framework
[build] main.cpp
[build] C:\Users\hamoz\Documents\OCV C++ VSC\main.cpp(8,21): error C2871: 'Cuda': a namespace with this name does not exist [C:\Users\hamoz\Documents\OCV C++ VSC\build\opencvgputest.vcxproj]
[build] C:\Users\hamoz\Documents\OCV C++ VSC\main.cpp(9,20): error C2871: 'dnn': a namespace with this name does not exist [C:\Users\hamoz\Documents\OCV C++ VSC\build\opencvgputest.vcxproj]
[build] C:\Users\hamoz\Documents\OCV C++ VSC\main.cpp(13,5): error C3861: 'printCudaDeviceInfo': identifier not found [C:\Users\hamoz\Documents\OCV C++ VSC\build\opencvgputest.vcxproj]
[proc] The command: "C:\Program Files\CMake\bin\cmake.EXE" --build "c:/Users/hamoz/Documents/OCV C++ VSC/build" --config Release --target opencvgputest -j 14 -- exited with code: 1
[build] Build finished with exit code 1
[main] Failed to prepare executable target with name "undefined"
both cuda and dnn are in the bin file for opencv and WITH_CUDA and WITH_CUDNN are on on cmake config
i tried checking the directories tried modifying my CMakeLists.txt file but no use