OpenCV library stdlib.h missing in colcon build of kobuki sim

[mwwoodm]

I'm following the getting-started-with-ubuntu course of the AWS RoboMaker tutorial available at https://github.com/aws-robotics/aws-r... and am following the below sequence of commands to setup the turtlebot and bobuki simulators:

  cd ~/ros_workspace/src
  git clone https://github.com/turtlebot/turtlebot 
  git clone https://github.com/yujinrobot/kobuki 
  cd .. 
  rosdep install --from-paths src --ignore-src -r -y 
  colcon build

However during the colcon build command, there seems to be an issue with stdlib.h in OpenCV when building the Kobuki Desktop. The error message follows:

--- stderr: OpenCV In file included from /usr/include/c++/7/bits/stl_algo.h:59:0, from /usr/include/c++/7/algorithm:62, from /home/mwwoodm/ros_workspace/src/kobuki_desktop/opencv-3.1.0/modules/core/include/opencv2/core/base.hpp:53, from /home/mwwoodm/ros_workspace/src/kobuki_desktop/opencv-3.1.0/modules/core/include/opencv2/core.hpp:54, from /home/mwwoodm/ros_workspace/src/kobuki_desktop/opencv-3.1.0/modules/core/include/opencv2/core/utility.hpp:52, from /home/mwwoodm/ros_workspace/build/OpenCV/modules/core/precomp.hpp:49: /usr/include/c++/7/cstdlib:75:15: fatal error: stdlib.h: No such file or directory #include_next ^~~~~~ compilation terminated. make[2]: [modules/core/precomp.hpp.gch/opencv_core_Release.gch] Error 1 make[1]: [modules/core/CMakeFiles/pch_Generate_opencv_core.dir/all] Error 2

make: * [all] Error 2 Failed <<< OpenCV [26.1s, exited with code 2] Aborted <<< kobuki_node [1min 6s]

I'd appreciate thoughts on steps that I could take to fix this error. I've tried installing OpenCV via apt:

  sudo apt-get update
  sudo apt install python3-opencv
  cd ros_workspace
  colcon build

But this did not fix the issue with stdlib.h

Thanks in advance!