Error with installing additional package
Hi all )))
Sorry, if my question have been repeated but I haven't found the solution( I was trying to install gmapping package but the error was.
I wrote this
sudo apt-get install ros-melodic-gmapping
and I got this
Reading package lists... Done
Building dependency tree
Reading state information... Done
E: Unable to locate package ros-melodic-gmappin
Why did the package not be installed?
Thank you very much))))