Dependecies failed to install

[Chiwingum11]

"Additional ROS packages have to be installed for the NMEA and GPSFix messages.
sudo apt install ros-$ROS_DISTRO-nmea-msgs ros-$ROS_DISTRO-gps-msgs"

This does not work and my DISTRO is Galactic and using ros2.

Error I gotten is
"E: Unable to locate package ros-galactic-nmea-msgs
E: Unable to locate package ros-galactic-gps-msgs"

I followed all the steps and cloned it already. What should I do?

[thomasemter]

Hi there,

these packages are definitely available for ROS Galactic, see here. I also checked that they are available via apt right now.

How did you install ROS Galactic? Are you able to install standard packages like ros-galactic-tf2? Please make sure that the sources are setup correctly.