SSAS dimensions hierarchies: A duplicate attribute key has been found when processing - ssas

Question

I am completely new to SSAS an I am trying to deploy a simple cube with only one dimention comprised of multiples attributes. What I did already was to create a DSV from my data source and then I created a dimension from my fact table. It seams that no matter what happens, I get the following error message:
Errors in the OLAP storage engine: A duplicate attribute key has been found when processing: Table: 'dbo_Fact_Statistics', Column: 'Team', value: 'ANA'. The attribute is 'Team'.
This is my hierarchy: Id (SK) -> Player id -> Team -> Player Name -> Salary
I don't understand, obviously the problem is not that the value is null, like I've seen in other threads, telling me to set NullProcessing under KeyColumns to something else than automatic, but this is not the problem in this context.
Any help would be greatly appreciated.

Answer 1

Probably you have Team ANA listed under multiple Player Names and/or Salary values.
This is a really tricky area of SSAS. The quickest way forward is probably to install BIDS Helper and use the "Dimension Health Check" function:
http://bidshelper.codeplex.com/wikipage?title=Dimension%20Health%20Check&referringTitle=Documentation
It will show you all the issues in your data (not just the first one which you have discovered so far) and give you some info on how to proceed.
Personally I've gone off building attribute relationships due to the difficulty of debugging and fixing these issues. I tend to build dimensions now where every attribute relates directly to the key attribute. You never see these errors and performance seems very similar. You can still present the users with hierarchies.
If that is not an option for you, then you could try adding the columns for the higher-level attributes to the Key property of all the lower levels. Technically this will work but it is awkward to set up and maintain.

Answer 2

This approach solved my problem:
Instead of having the attributes following chained relationships, I simply leave the relationships as they were by default.
Player id (SK) -> Conference
Player id (SK) -> Division
Player id (SK) -> Team
Player id (SK) -> Player Name
Player id (SK) -> Salary

Answer 3

run this in sql find your douplicate for example ID... used it as my dimension key
Select id,count(*) as how_many
from [RC_Dailer_WH].[dbo].[RC_call_logs]
group by id
having count(*) > 1
(3647 row(s) affected) of which there are more than 50k records in my DB
removed duplicates then my cube processed proper

Answer 4

go for that dimension on which it is showing error.
and right click
go for view code
and search for the below line in that code:
ReportAndStop
delete that XML tag
and save
and reprocess it will works

Answer 5

Go to dimension for which it is showing Error. and give right click - go to view code -
CTRL+F - sarch for Connection - find
ReportAndStop
connection String.
Delete the above Command from the Code – and Save.
Process it again.
It will work.