Cannot upload PBIX with embedded data to Report Server

[cyclist007]

Hi, 

I installed the October release of PBIRS and attempted to save a report on the Report server using embedded data but I get the following error: "There was an error uploading your .pbix file. Verify that the file has not been corrupted and that the file extension matches the format of the file."

I did not have SSRS installed prior to this on this server and I am using SQL 2017 if that matters.

Would be glad if anyone can help.

Thanks,

MB