Joining Multiple facts to the multiple Dimension tables

Hi All,
We have multiple fact tables which are Joined to common Dimension tables. We join them in physical layer and maintain Left outer join in the BMM. I do not get any consistency errors. But when I run report I get error.
"could not find level detailed enough for group by clause" any suggestion on the same.
The join Strucutre is as follows.
Facts - F1, F2, F3
Dim - D1, D2, D3
F1 --> D1, D2, D3
F2--> D1, D2,
F3--> D1, D2, D3
We cannot combine F2, F3 into F1 using multiple Logical Table Source.
What is the best way to achieve the above mentioned functionality.
Please advice.
Regards,
Narendra Shetty.

Check this
OBI Error While Running Query
Update us back with solution, if helps pls mark
Edited by: Srini VEERAVALLI on Dec 20, 2012 7:13 AM

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