Forum Discussion
reporting issues
- 6 months ago
Hi,
This issue is caused by a version mismatch between Power BI Desktop and the Microsoft Edge WebView2 Runtime. Power BI Desktop (November 2025 release) relies on newer WebView2 APIs that are not supported by the installed runtime version (90.0.818.66), resulting in a System.NotImplementedException.
So as a solution, Update or repair the Microsoft Edge WebView2 Evergreen Runtime (x64).
Ensure Microsoft Edge is updated to the latest version and restart the system after updating
Note : This issue is environment-related and not connected to the report, data model, or DAX. If updating the WebView2 Runtime is not immediately possible, temporarily disabling Power BI preview features can be used as a short-term workaround.
Hope this helps.
Thanks!
Inogic
Hi,
This issue is caused by a version mismatch between Power BI Desktop and the Microsoft Edge WebView2 Runtime. Power BI Desktop (November 2025 release) relies on newer WebView2 APIs that are not supported by the installed runtime version (90.0.818.66), resulting in a System.NotImplementedException.
So as a solution, Update or repair the Microsoft Edge WebView2 Evergreen Runtime (x64).
Ensure Microsoft Edge is updated to the latest version and restart the system after updating
Note : This issue is environment-related and not connected to the report, data model, or DAX. If updating the WebView2 Runtime is not immediately possible, temporarily disabling Power BI preview features can be used as a short-term workaround.
Hope this helps.
Thanks!
Inogic