noetic-multi-jackal-tutorials
I am using Ubuntu 20.04 on Oracle VM, I have installed ROS noetic. After that, I tried to run multi Jackal robotic tutorial and when I tried to execute the [sudo apt-get install ros-noetic-multi-jackal-tutorials , I got the following messages:
Reading package lists... Done
Building dependency tree
Reading state information... Done
N: Ignoring file 'clearpath-latest.listsudo' in directory '/etc/apt/sources.list.d/' as it has an invalid filename extension
E: Unable to locate package ros-noetic-multi-jackal-tutorials