Here’s something I found out a few weeks ago, just before I went on holiday: installing SP1 for SSAS 2008R2 breaks a PowerPivot installation on the same machine. After I’d installed SP1 on my laptop I found I got an “Unable to open file” error message in PowerPivot whenever I tried to import data, at which point PowerPivot crashed. For me the fix was easy – reinstall PowerPivot and it worked again – but I’m glad I found this out before I needed to use PowerPivot in front of a customer.
I’ve just found out that reinstall the old version of PowerPivot doesn’t solve the problem. I have to download the latest version of PowerPivot (version 10.50.2500.0, matched to SP1 build number) and reinstall with it.
Same here for me. Went to the latest version to get working again.
I ran into the exact same thing – reinstalling the newest version of PowerPivot (as George pointed out in the previous comment) solved it for me as well.
I’m certainly glad I read this – I was about to do the exact same thing. Is this documented in MSDN or TechNet anywhere?
No, it’s not documented anywhere as far as I know.
Your are lucky Chris!
Thanks for the “heads up”, Chris!
I had to re-download and install too. I presume this is some issue with a change in the MSOLAP OLEDB provider in the SP.