singing in to Pro through Notebooks trouble

[WoodyUmstead]

After trying to run cell 3 I get this error message. 

" property 'basemap' of 'Map' object has no setter "

I have logged out and logged back in and still get the message. I am wondering if on cell 2 I am not actually signed in?

This is run on my desktop and my version is 3.5

[WoodyUmstead]

Here is another screenshot for more context of the steps I am working through within 'Performing Analysis Using ArcGIS API for Python' course. 

First screenshot is of my error message, second is the steps leading up to it.

[Clubdebambos]

The course is outdated and is for ArcGIS API for Python 2.3 and older. Since 2.4 the WebMap class has been replaced with the Map class. The Map class has a property called basemap which is a BasemapManager object, which in turn has a basemap property to set the basemap for a Map.

So it would look like this...

map1.basemap.basemap = "streets"