I am trying to set up a subscriber and publisher in ros noetic on ubuntu 20.04 following this video https://www.youtube.com/watch?v=GBtKo_pXrJQ&t=290s.
Where I am stuck is at 4:48 where instead of seeing the hello worlds, I see the error in the title. I have tried some of the solutions from here /usr/bin/env: ‘python’: No such file or directory but have been unable to fix the error.
Thank you
python
means Py2. Since then Py2 has been discontinues, and Ubuntu 20.04 uses Python3 instead.python3
means Py3.