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 | 1 | initial version |
Did you remember to first source /opt/ros/melodic/setup.bash before trying to run roscore?
| | 2 | No.2 Revision |
Did you remember to first source /opt/ros/melodic/setup.bash before trying to run roscore?
Edit:
There isn't roscore in
/home/my name/opt/ros/melodic/bin, does it mean i didn't install successfully?
I would not expect it to be located in $HOME, but in opt/ros/melodic/bin.
Did you use apt to install ROS? As the tutorial you linked instructed you to?
What is the output of ls -al /opt/ros/melodic/bin/roscore? Do not change the path, just run that command.
| | 3 | No.3 Revision |
Did you remember to first source /opt/ros/melodic/setup.bash before trying to run roscore?
Edit:
sudo apt install ros-melodic-desktop-fullThere isn't roscore in
/home/my name/opt/ros/melodic/bin, does it mean i didn't install successfully?http://wiki.ros.org/cn/melodic/Installation/Ubuntu
I would not expect it to be located in $HOME, but in opt/ros/melodic/bin.
Did you use apt to install ROS? As the tutorial you linked instructed you to?
What is the output of ls -al /opt/ros/melodic/bin/roscore? Do not change the path, just run that command.
| | 4 | No.4 Revision |
Did you remember to first source /opt/ros/melodic/setup.bash before trying to run roscore?
Edit:
sudo apt install ros-melodic-desktop-fullThere isn't roscore in
/home/my name/opt/ros/melodic/bin, does it mean i didn't install successfully?http://wiki.ros.org/cn/melodic/Installation/Ubuntu
I would not expect it to be located in $HOME, but in opt/ros/melodic/bin.
What is the output of ls -al /opt/ros/melodic/bin/roscore? Do not change the path, just run that command.
Assuming you ran ls -al /opt/ros/melodic/bin/roscore and it tells you there is no such file or directory, it would seem for some reason you're missing the roscore binary.
You could try reinstalling it using:
sudo apt install --reinstall ros-melodic-roslaunch
Pay close attention to the output of apt. Perhaps it tells you why it can't / couldn't install the roslaunch package successfully.
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