I rebuilt everything looked through the build logs in the Anaconda prompt. Except I got this error during build.
E:\Users\amade\opencvGPU\opencv\modules\dnn\src\cuda4dnn\csl\cudnn/recurrent.hpp(122,1): error C3861: 'cudnnSetRNNDescr
iptor_v6': identifier not found (compiling source file E:\Users\amade\opencvGPU\opencv\modules\dnn\src\layers\recurrent
_layers.cpp) [E:\Users\amade\opencvGPU\build\modules\world\opencv_world.vcxproj]