Hi Praveena,
Thank you for sending us your issue with the details.
As I can see, Visual Studio mentioned incompatible. It looks like your extension didn’t update automatically. Especially since Visual Studio 2026 is a more modern version compared to Visual Studio 2019, a lot of extensions and components have different versions. They are not backward compatible and cannot be shared between versions.
For troubleshooting, please check the components below. They are required in your project (.rptproj). There are three extensions and one component. You can search for them using the keyword “Microsoft Report Service.” Please make sure you install the version for 2022+.

Next, please open Visual Studio Installer, click Modify > Individual components, and search for SSDT. Check if SQL Server Data Tools has been installed. If not, please tick the box and select Modify to install it. After that, close Visual Studio and reopen the solution to see if it works normally.

Hope this helps! If my answer was helpful, please consider marking it so others with the same issue can benefit as well. You can follow this guidance if needed.
If my solution doesn’t work, please let me know in the comments. I look forward to hearing from you soon.