WebMap.add_table(new_table) fails with AttributeError("'NoneType' object has no attribute 'json'",)

[cleanlines]

Using ArcGIS Pro 2.6.0

When creating a new Table feature and adding it to a webmap I get an error:

AttributeError("'NoneType' object has no attribute 'json'",)

using something like

new_table = Table(new_table_url) wm.add_table(new_table)

in the add_table function in C:\ArcGIS\Pro\bin\Python\envs\arcgispro-py3\Lib\site-packages\arcgis\mapping\ _types.py we have

if not isinstance(table, arcgis.features.Table): raise Exception("Type of object passed in must of type 'Table'") self.add_layer(table, options)

in def add_layer(self, layer, options=None):

the first check is

if options is None: options = {} if isinstance(layer, arcgis.features.FeatureLayer) and
'renderer' not in options: options['renderer'] = json.loads(layer.renderer.json)

which throws the error because tables don't have renderers.

If you do this

isinstance(table, arcgis.features.Table) True isinstance(table, arcgis.features.FeatureLayer) True