Can't get interactive graph in Jupyter notebook

I’m a jupyter/plotly newbie. I tried executing the following snippet (found in a Medium article) in my notebook:

%matplotlib notebook
import plotly.graph_objects as go
fig = go.Figure(
data=[go.Bar(y=[2, 1, 3])],
layout_title_text=“A Figure Displayed with the ‘svg’ Renderer”

However, when I run it the graph doesn’t render. What am I doing wrong?

Also, no errors are generated. Just no graph renders…

Actually, after a while, I did get the following error message:

For some reason was unable to communicate with the
local orca server process, even though the server process seems to be running.

Please review the process and connection information below:

orca status

state: running
executable: //anaconda3/bin/orca
version: 1.2.1
port: 60394
pid: 63912
command: ['//anaconda3/bin/orca', 'serve', '-p', '60394', '--plotly', '//anaconda3/lib/python3.7/site-packages/plotly/package_data/plotly.min.js', '--graph-only', '--mathjax', '']