Get struct field 'Columns' not selectable

[dyb5785]

IYH Hello

Beginner question, free AIP Developer Tier

I am stuck in course “Speedrun: Your First AIP Workflow”

I am at Section Transforming the Data - Get Entities. Course docs says

1. Search for and add a Get struct field transform block
2. Set the response column as the struct to process
3. Set entities as the property to extract into a new column called “entities”
4. Click Apply
   
   

Step 2 is not possible (Columns is browned out)

Appreciate your time.

[redboyben]

Hi! Have you tried following the step 2, "Set the response column as the struct to process? The field is grayed out because there is no column that have the right type (struct).