A User Interface Package Template for ROS Melodic based on Qt5 Widgets

Create WS

mkdir -p <workspace_name>/src
cd <workspace_name>
catkin init
catkin config --merge-devel # Necessary for catkin_tools >= 0.4.
catkin config --extend /opt/ros/$ROS_VERSION
catkin config --cmake-args -DCMAKE_BUILD_TYPE=Release

Install dependencies

Qt 5 independent of ROS:

sudo apt-get install qtbase5-dev

wstool init
wstool merge nav/nav_ui/dependencies.rosinstall
wstool update