C2W3 assignment - __init__() got an unexpected keyword argument 'instance_name'

Please refresh your workspace and see if the first step looks like this:

# Use ImportSchemaGen to put the curated schema to ML Metadata
user_schema_importer = None

Your notebook contains this:

# Use an ImporterNode to put the curated schema to ML Metadata
user_schema_importer =

There’s no instance_name argument in ImporterNode.__init__