Error connecting to Azure Analysis Services after PowerBI October 2020 upgrade

Hi iamsordz 

Thank for your patience.  

We have found a mitigation for some customers that are experiencing this issue in the October release. Let me know if the following works for you:

Copy the following libraries from the bin directory of PowerBI Desktop for RS into PowerBI Report Server's PowerBI directory

1. For Desktop for RS, copy the following files from C:\Program Files\Microsoft Power BI Desktop RS\bin (adjusting for your base installation directory)
   1. Microsoft.AnalysisServices.AzureClient.dll
   2. Microsoft.AnalysisServices.AzureClient.dll.manifest
   3. msolap.dll
2. Copy the files to Power BI Report server C:\Program Files\Microsoft Power BI Report Server\PBIRS\PowerBI (adjusting for your base installation directory)

Thanks,

Gabe

gsprague 

Foudn a workaround and similar to your advice. Copied the same 3 files to the C:\Program Files\Microsoft Power BI Report Server\PBIRS\ASEngine

Thanks.