Can't find opencv3.3.1.

[SteveRogan]

When I install dependencies,I run ./build_install_debians.sh.But it occurs errors.
So I run command in build_install_debians.sh step by step.
I found every pkg in debians can't find opencv.
For example,I run ./build_alvar.sh,it tells me "dpkg-checkbuilddeps: 错误: Unmet build dependencies: libopencv3.3.1 | ros-kinetic-opencv3 (>= 3.3.1-5)".All pkgs have this problem.Please how can I solve this problem?
My OS is Ubuntu20.04,it has installed ros noetic.

[Pedro-Roque]

Hi @SteveRogan ,

The installation of Opencv 3.3.1 is done in https://nasa.github.io/astrobee/v/develop/install-nonNASA.html during the command ./build_install_debians.sh. In particular, this command will call https://github.com/nasa/astrobee/blob/master/scripts/setup/debians/build_opencv.sh which takes care of the OpenCV build. Please double check if those steps went smoothly. If not, please post your issue in the nasa/astrobee github page.