# Revision history [back]

It looks like it should be in /opt/ros/noetic/share but it's not. It's also not in /opt/ros/noetic/bin. I did, however, find it in /usr/share and /usr/bin. In /usr/share it is colored blue and in /usr/bin it is colored green. What does that mean?

From what you describe, just as in your previous question (ie: #q356392), you appear to be mixing Noetic packages with wiki/UpstreamPackages.

That will not work, as you've found out.

You'll have to fix this before roscore (and probably other parts of ROS) will start working again.

I added both to my .bachrc file and restarted my terminal but no effect.

This will not affect anything.