After installing the Oct release (64bit), I am not able to connect to/refresh data sources any more (SQL / SSAS). The data sets refresh just fine when uploading a revised report/dataset to the service (using gateway), but fails when a refresh is initiated from the Desktop client. Reports and datasets were created in July release (32bit).
Error message:
Failed to save modifications to the server. Error returned: 'The provider 'Microsoft.PowerBI.OleDb' is not registered. The following system error occured: Class not registered. A connection could not be made to the data source with the Name of xxxxxxxxxxxxxxxxxxxxxxxxxxxx.
Any ideas on what has gone wrong?