Cannot connect to specific Cube through BI Semantic Model for Power View in SharePoint 2013

Question

I'm trying to create a connection to an Analysis Services Cube through a BI Semantic Model connection in SharePoint 2013 to create a Power View report. I'm able to connect to other cubes on the same server, and I have SQL Server 2012 SP1 Update 9 installed
so it's not a versioning issue.
I've captured a log of two different connection attempts to show this in action. I can't post links, but just send me a message if you need it, just in case there's any interest in it. The first is a successful connection to an alternate cube
on the same server, and the second is an unsuccessful attempt that produces and error with "Internal error: An unexpected exception occurred.".
On the SharePoint side, the error is reported as:
Internal error: An unexpected exception occurred. ---> Microsoft.ReportingServices.DataExtensions.AdomdTestConnectionException: Internal error: An unexpected exception
occurred.
This cube was working the previous day, but it has since been edited and it no longer works now but there's no clear reason why. It can still be queried directly through SSMS with MDX queries, and produces no errors.
Any help is much appreciated,
Ryan

Answer 1

Hi Ryan Myers,
According to your description, when you tried to connect to an Analysis Services Cube in SharePoint 2013 through BI Semantic Model, you get the error message: Internal error: An unexpected exception occurred. But the MDX queries works fine in SSMS.
It's hard to give you the exact reason that cause this issue based on the limited information, please validate if the connection string is correct. Besides, we can troubleshoot this issue by using the Windows Event logs and msmdsrv.log.
We can access Windows Event logs via "Administrative Tools" --> "Event Viewer".  SSAS error messages will appear in the application log.
The msmdsrv.log file for the SSAS instance that can be found in \log folder of the instance. (C:\Program Files\Microsoft SQL Server\MSAS11.MSSQLSERVER\OLAP\Log)
Reference:
Data collection for troubleshooting Analysis Services issues
Data Connection For a Power View Report
If you have any more questions, please feel free to ask.
Thanks,
Wendy Fu
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