open CV error

after successful build

running this command yields error while loading shared libraries: libopencv_dnn.so.4.4: 

./main --input-dir ../../input_image/ --model-file ../../model/yolov5s_torchscript_B1-C3-H640-W640_torch1-6-0_cuda10-2_cpu.pt 

I am not sure what am I doing wrong 