Mdx query Range help please?

Hi Experts,

I was trying to find sum(Range) with the below query it is giving me error as :-

Executing the query ...
Query (32, 6) The : function expects a member expression for the 1 argument. A level expression was used.

Execution complete

My mdx query is somthing like this:-

SELECT
	Sum([Start Date Time].[Week].[Year]:[Start Date Time].[Week].[Year].parent.lastchild
		,[Measures].[Measure-Name])
		ON COLUMNS,
	[Measures].[Measure-Name] ON ROWS
FROM
	[My Cube]

Help please?

Thanks

Kumar

Please do let us know your feedback. Thank You - KG, MCTS