Thread:Talk:Jetson/Installing OpenCV/how to avoid conflicts?

I have installed 2x nvidia opencv however when I try to install libhighgui-dev, dependencies include: libopencv-core-dev libopencv-core2.4 libopencv-highgui-dev libopencv-highgui2.4 libopencv-imgproc-dev libopencv-imgproc2.4

its not clear to me: how to proceed?

ie are these already installed, but not found? or what?

Might it be helpful to add something more general around this type of issue? ie to clarify what type of issues to watch out for. and what is included... https://devtalk.nvidia.com/default/topic/778637/embedded-systems/libhighgui-dev-opencv-dependency-/