Could anyone let me know why in VB.Net I’m getting this error on the third line of code below?


ERROR:

Option Strict On disallows implicit conversions from 'System.Object' to 'VBNET.HowTo.Address'.

CODE:
ReadOnly Property CurrentAddress() As Address
Get
Return AddressBook.Items(CurrentAddressIndex - 1)
End Get
End Property

I declare like this:
Public AddressBook As AddressBook
Private _currentAddressIndex As Integer

Thanks