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Power Bi update Power BI Desktop refresh error



I have been facing a problem with data refreshes which started after PBI desktop was updated to the September version. I have a Pbix file that connects to an Excel file located in a Sharepoint Site. Up until now, I had no problems updating the file whenever the source Excel file was updated


However, ever since the most recent release, when I attempt to update  the PBIX file, I get an eror saying "Failed to save modifications to the server. Error returned: 'An unexpected error occurred (file 'xlattrmap.cpp', line 396, function 'XLColInfoMapper::AddToAttrMapper')" . I have no idea what this means. I didn't have this problem previously. Anybody else facing a similar problem?


Thank you


Status: Needs Info
Frequent Visitor

Hi tamasys,


It is now working at my end. I think the AAS fix has been applied last weekend.


Many thanks,