I installed Anaconda 3.7 on Ubuntu 18.04 (Bionic Beaver). Installation was successful. When I tried to start Jupyter Notebook from navigator it throws the following err
For anyone interested in open jupyterlab or jupyter notebook in chrome : install it in the terminal with
sudo apt-get install google-chrome-stable
It didn't work for me by using chromium. And, as mentionned paugier, in Ubuntu 20.04, chromium is installed with snap (even when using the command sudo apt install chromium-browser), so chromium can't open the html file used by Jupyter. So if you install chrome by using the terminal it works.