Oh, I see what’s wrong. You actually aren’t using dbc 1.0.2.
You can include this to see what version is running in the app:
print(dbc.__version__)
Also, if you are on the current version of dbc, then no_gutters=True doesn’t work. You need to set the gutters with the utility classes: className="g-0"
Here is a cheatsheet you might find helpful: https://dashcheatsheet.pythonanywhere.com/
You can find more info in this post: Dash Bootstrap Components Cheatsheet