"Field not found: 'Microsoft.AspNetCore.Components.RenderTree.RenderTreeFrame.FrameType'."

[RonSijm]

Hey there. I just found this library and I was trying to use it on my Blazor project.

However on initializing var component = RenderComponent<Markdown>(); I'm getting this exception:

System.MissingFieldException: 'Field not found:     
'Microsoft.AspNetCore.Components.RenderTree.RenderTreeFrame.FrameType'.'

Stacktrace:

at Bunit.Rendering.TestRenderer.GetComponent[TComponent](Int32 rootComponentId)
at Bunit.Rendering.TestRenderer.FindComponent[TComponent](Int32 parentComponentId)
at Bunit.Rendering.TestRenderer.RenderComponent[TComponent](IEnumerable`1 parameters)
at Bunit.TestContext.RenderComponent[TComponent](ComponentParameter[] parameters)
at RonSijm.Screens.TestWithBunit.<TestDownloadRendering>d__0.MoveNext() in 

Version info:

• Library version: 1.0.0-beta-11-g43328f7f34
• .NET Core/Blazor version: 5.0.0 (Latest stable)

I googled the issue, and I assume that it's related to this issue:
dotnet/aspnetcore#25727

I tried it with a couple really small components, and I get the same exception with all of them. So I started assuming its a library issue

[egil]

Hi @RonSijm

Try changing you bunit version to just beta-11. You are using a early nightly release of beta 11 that didn't have support for .NET5.

[RonSijm]

Ah thanks for the quick response. I got that version from the nuget-ui installing preview packages, so figured it would be the lastest, hehe.

I don't have that error anymore, though now I'm getting a NullReferenceException somewhere during

Bunit.Rendering.TestRenderer.ProcessPendingRender()	C#
Microsoft.AspNetCore.Components.RenderTree.Renderer.AddToRenderQueue(componentId = 0, renderFragment = {Method = {System.Reflection.RuntimeMethodInfo}})	Unknown
Microsoft.AspNetCore.Components.RenderHandle.Render(renderFragment = {Method = {System.Reflection.RuntimeMethodInfo}})	Unknown
Bunit.Rendering.WrapperComponent.Render()	C#
Bunit.Rendering.TestRenderer.Render.AnonymousMethod__0()	C#

I'll try running bunit for source to see if I can figure out why.. hehe

[egil]

OK, ill close this issue for now then :)