7 Answers, 1 is accepted
Yup, not going to get very far with this one:
InvalidOperationException: The type 'Telerik.Blazor.Components.RootComponent.TelerikRootComponent' declares a parameter matching the name 'ChildContent' that is not public. Parameters must be public.
We just shipped the 1.7.0 release that is compatible with Preview 9 (less than a business day after the framework release dropped).
Please upgrade to it and things should work :) If not, send me a message. If you are using the CDN for our JS Interop file, don't forget to update its URL too.