Showing results for 
Search instead for 
Did you mean: 
New Member

Error Error Processing Data Model Refresh : Unspecified error

Hi all,


I am struggling with the following error:


2018-11-25 01:06:08.5786|ERROR|60|Error Processing Data Model Refresh: SessionId: 5f88c235-56fa-4ae1-85bf-fa34aa0d67be, Status: Error Failed to refresh the model, Exception Microsoft.AnalysisServices.OperationException: Failed to save modifications to the server. Error returned: 'Unspecified error. The exception was raised by the IDbCommand interface.
   at Microsoft.AnalysisServices.Tabular.Model.SaveChanges(SaveOptions saveOptions)
   at Microsoft.PowerBI.ReportServer.AsServer.TOMWrapper.RefreshModel(Database database)
   at Microsoft.PowerBI.ReportServer.AsServer.AnalysisServicesServer.RefreshDatabase(String databaseName, IEnumerable`1 dataSources, String clientSessionId)
   at Microsoft.PowerBI.ReportServer.WebHost.EventHandler.AnalysisServicesDataRefresh.RefreshDatabase(AsDatabaseInfo asDatabaseInfo)
   at Microsoft.PowerBI.ReportServer.WebHost.EventHandler.DataRefreshScope.<>c__DisplayClass9.<ExecuteActionWithLogging>b__7()
   at Microsoft.PowerBI.ReportServer.WebHost.EventHandler.DataRefreshScope.<ExecuteFuncWithLogging>d__3`1.MoveNext()


This error is occurring when trying to do a scheduled refresh on an Access DB on Power BI Report server. I have been able to connect to the DB from Report server as a data source so it should be anything to do with OLEDB driver. 


Please help as this is an urgent problem for a client. I can find lots of refresjh errors on here but not found anyone reporting this unspecified error.




Helpful resources

May 2023 update

Power BI May 2023 Update

Find out more about the May 2023 update.

Submit your Data Story

Data Stories Gallery

Share your Data Story with the Community in the Data Stories Gallery.