There is this example from MS documentation:

Code:
Dim queryResults = From cust In customers
                   Group Join ord In orders On
                     cust.CustomerID Equals ord.CustomerID
                     Into CustomerOrders = Group,
                          OrderTotal = Sum(ord.Amount)
                   Select cust.CompanyName, cust.CustomerID,
                          CustomerOrders, OrderTotal
A simple little example, but for me, the Into keyword is always an error. I have tried a very simple example such as this:

Code:
                Dim store1 As IEnumerable(Of Guid)
		Dim store2 As IEnumerable(Of Guid)

		Dim res=From gd In store1 Join gd2 In store2 On gd Equals gd2 into
which is as simple as possible, but 'into' is underlined with the error End of Statement Expected. Normally, this means that I overlooked something, but I sure can't see what it would be.

What am I missing?