.NET 8 Blazor - Error: There are multiple .NET runtimes present

[Sushma58]

.NET 8 Blazor - Error: There are multiple .NET runtimes present

[limonte]

No idea, sorry

[Sushma58]

The library is struggling with .NET 8 Blazor interactive mode setup, please see below error which was reported with LightWeightCharts nuget. This is exactly similar issue I am getting.

mr-azazael/LightweightCharts.Blazor#7

[Sushma58]

This is the suggestion from Microsoft end.

You have multiple runtimes running on the page, server and webassembly. Your library is using the global DotNet on window to invoke methods on .NET (probably static methods). That pattern is incompatible with scenarios where server and runtime are running on the same page (as the global DotNet object would not know if the call needs to go to the server runtime or to the webassembly runtime).

In this situation the recommendation is that as the library boots, it creates from .NET a dotnet object reference and sends that to JS so that JS can call back into the right .net runtime.