It seem to be a small fault in Exercise 2.8: Creating an ArrayCollection of value objects
In the paragraph named "Create value object instances" it is typed:
1. Return to Flash Builder and within the Package Explorer view, from the components package, open the ex2_08_starter.mxml file
It seems to me that "component package" has to be changed to "default package."
In the paragraph "Create value object instances" there are two errors:
employee.hireData = emp.hireData; shoud be employee.hireDate = emp.hireDate; (date, not data)
postalCode is not in the value object
Thank you. We will test and correct the instructions.