"String value of a cell" error - can't reference paragraph
I am working on chapter 5 (Designing Forms), topic: Displaying Read Only Form.
For the activity you are supposed to add a paragraph control that references the paragraph SampleParagraph in class Org1-Reservelt-Work-BookAHotel.
When added it appears fine in Design Studio. However, when I go to save I get the error:
String value of a cell: SampleParagraph does not exist for use by this record (Validation).
I am adding the paragraph on the section ConfirmBooking in the class Org1-Reservelt-Work-BookAHotel.
How do I resolve this error?