Calculated member for dimension

Anyone please suggest me how to define calculated member for Dimension attribute in SSAS

with member [Measures].[N1] as
[Measures].[Item Count] + 1

member [Measures].[N2] as
[Measures].[Item Count] + 2

MEMBER [Project].[Project Name].[N3]
 AS [Project].[Project Name].[Project Name]
 
Select {[Measures].[Item Count], [Measures].[N1], [Measures].[N2] } on columns,
[Project].[Project Name].[N3] on rows
from ABC

Here, N1 and N2 are working fine but N3 not. Please suggest me what's wrong with this script.

Neelam Gupta