Forum Discussion
Problems with PBIRS on-prem January 2025
Hi MHaggerty_DOL,
Thank you for reaching out to the Microsoft fabric community forum.
This error has been encountered by several users following the January 2025 update of Power BI Report Server.
Please ensure you are opening the report with the Jan 2025 Power BI Desktop Report Server edition, not the standard Power BI Desktop. The correct version can be downloaded from the official Microsoft site if required.
Within Power BI Desktop, navigate to Options > Data Load and clear the cache. After refreshing the report manually, use "Save As" to save it under a new name rather than overwriting the existing file.
Additionally, review your connectors or data source methods, as version updates can sometimes impact them.
If the issue persists, check the Report Server logs using the error’s Request ID for further details.
If this post was helpful, please consider marking Accept as solution to assist other members in finding it more easily. If you continue to face issues, feel free to reach out to us for further assistance.
Best Regards,
Harshitha.
I have installed the correct version. The log files have errors.
2025-06-26 00:00:09.6998|ERROR|152|Failed to publish model for 2d8ffe9e-79ee-4da2-b375-00ae4fe48097_926253845Microsoft.PowerBI.ReportServer.AsServer.AsConnectionException: Failed to publish model for 2d8ffe9e-79ee-4da2-b375-00ae4fe48097_926253845 ---> Microsoft.AnalysisServices.OperationException: M Engine error: 'Microsoft.Data.Mashup; The type initializer for 'Microsoft.Data.Mashup.MashupConnection' threw an exception.'.
#2:
2025-06-26 00:00:09.7154|ERROR|202|Error Processing Data Model Refresh: SessionId: 0a72e85d-5145-414c-8007-9583a5939064, Status: Error Failed Streaming model to Analysis Server, Exception System.AggregateException: One or more errors occurred. ---> Microsoft.PowerBI.ReportServer.AsServer.AsConnectionException: Failed to publish model for 2d8ffe9e-79ee-4da2-b375-00ae4fe48097_926253845 ---> Microsoft.AnalysisServices.OperationException: M Engine error: 'Microsoft.Data.Mashup; The type initializer for 'Microsoft.Data.Mashup.MashupConnection' threw an exception.'.