https://www.telerik.com/forums/add-new-report-item-template-missing
Add new report item template missing in Reporting | Telerik Forums
This is for a .net core 2.2 razor page. I've tried rerunning the vsix for vs2019, but nothing seems to work. How to get "The HTML5 Report Viewer item templat...
add new reportitem templatemissingreportingtelerik