Hot reload error [JSInvokableAttribute("ApplyHotReloadDeltas")]

[jacksonsfaria]

Is there an existing issue for this?

• I have searched the existing issues

Describe the bug

Description:

I'm facing an issue with the Hot Reload feature in ASP.NET Core. Changes made to .razor components are not being reflected in the application during development, even with the Hot Reload option enabled and active.

dotnet watch ⌚ Updating diagnostics in the browser.
dotnet watch ⌚ [GrupoSPO.WebApp (net9.0)] Using capabilities based on target framework: '9.0'.
dotnet watch 🕵️ [6fbd4ac4-0007-42d3-86f7-d039cd7a3a1c] ResponseLoggingLevel = Verbose
info: Microsoft.AspNetCore.Hosting.Diagnostics[1]
      Request starting HTTP/2 POST https://[::1]:5001/_framework/blazor-hotreload - application/json 52031
info: Microsoft.AspNetCore.Hosting.Diagnostics[1]
      Request starting HTTP/2 GET https://[::1]:5001/home - - -
info: Microsoft.AspNetCore.Routing.EndpointMiddleware[0]
      Executing endpoint '/home (/home)'
info: Microsoft.AspNetCore.Hosting.Diagnostics[2]
      Request finished HTTP/2 POST https://[::1]:5001/_framework/blazor-hotreload - 200 0 - 1.4785ms
dotnet watch ❌ [Browser #1] The assembly 'Microsoft.AspNetCore.Components.WebAssembly' does not contain a public invokable method with [JSInvokableAttribute("ApplyHotReloadDeltas")].
   at Microsoft.JSInterop.Infrastructure.DotNetDispatcher.GetCachedMethodInfo(AssemblyKey assemblyKey, String methodIdentifier)
   at Microsoft.JSInterop.Infrastructure.DotNetDispatcher.InvokeSynchronously(JSRuntime jsRuntime, DotNetInvocationInfo& callInfo, IDotNetObjectReference objectReference, String argsJson)
   at Microsoft.JSInterop.Infrastructure.DotNetDispatcher.Invoke(JSRuntime jsRuntime, DotNetInvocationInfo& invocationInfo, String argsJson)
   at Microsoft.AspNetCore.Components.WebAssembly.Services.DefaultWebAssemblyJSRuntime.InvokeDotNet(String assemblyName, String methodIdentifier, Int64 dotNetObjectId, String argsJson)
   at Microsoft.AspNetCore.Components.WebAssembly.Services.DefaultWebAssemblyJSRuntime.__Wrapper_InvokeDotNet_999282461(JSMarshalerArgument* __arguments_buffer)
ManagedError@https://[::1]:5001/_framework/dotnet.runtime.cymp1amu5g.js:3:31033
sn@https://[::1]:5001/_framework/dotnet.runtime.cymp1amu5g.js:3:26894
gn@https://[::1]:5001/_framework/dotnet.runtime.cymp1amu5g.js:3:28882
gr/<@https://[::1]:5001/_framework/dotnet.runtime.cymp1amu5g.js:3:38412
invokeDotNetFromJS@https://[::1]:5001/_framework/blazor.web.js:1:157655
invokeDotNetMethod@https://[::1]:5001/_framework/blazor.web.js:1:3507
invokeDotNetStaticMethod@https://[::1]:5001/_framework/blazor.web.js:1:3263
Hr/wt._internal.applyHotReloadDeltas@https://[::1]:5001/_framework/blazor.web.js:1:163016
applyBlazorDeltas@https://[::1]:5001/_framework/aspnetcore-browser-refresh.js:234:15
BlazorHotReloadDeltav3@https://[::1]:5001/_framework/aspnetcore-browser-refresh.js:49:58
connection.onmessage@https://[::1]:5001/_framework/aspnetcore-browser-refresh.js:57:29

info: Microsoft.AspNetCore.Routing.EndpointMiddleware[1]
      Executed endpoint '/home (/home)'
info: Microsoft.AspNetCore.Hosting.Diagnostics[2]
      Request finished HTTP/2 GET https://[::1]:5001/home - 200 - text/html;+charset=utf-8 12.0396ms
dotnet watch 🕵️ [GrupoSPO.WebApp (net9.0)] Applying delta to module 86296d76-d934-4d93-99a2-f1fe2c7d5ccc.
dotnet watch 🕵️ [GrupoSPO.WebApp (net9.0)] Invoking metadata update handlers.
dotnet watch 🕵️ [GrupoSPO.WebApp (net9.0)] Deltas applied.

Browser console:

Error: The assembly 'Microsoft.AspNetCore.Components.WebAssembly' does not contain a public invokable method with [JSInvokableAttribute("ApplyHotReloadDeltas")].
[aspnetcore-browser-refresh.js:240:15](https://[::1]:5001/_framework/aspnetcore-browser-refresh.js)
Error: The assembly 'Microsoft.AspNetCore.Components.WebAssembly' does not contain a public invokable method with [JSInvokableAttribute("ApplyHotReloadDeltas")].
[aspnetcore-browser-refresh.js:240:15](https://[::1]:5001/_framework/aspnetcore-browser-refresh.js)

Expected Behavior

Update the page!?

Steps To Reproduce

Open project.
Change any file .razor and save.

Exceptions (if any)

No response

.NET Version

9.0.203

Anything else?

dotnet --info

.NET SDK:
 Version:           9.0.203
 Commit:            dc7acfa194
 Workload version:  9.0.200-manifests.12d79ccf
 MSBuild version:   17.13.20+a4ef1e90f

Ambiente de runtime:
 OS Name:     Windows
 OS Version:  10.0.26100
 OS Platform: Windows
 RID:         win-x64
 Base Path:   C:\Program Files\dotnet\sdk\9.0.203\

VS 17.13.35931.197

[javiercn]

@jacksonsfaria thanks for contacting us.

@tmat can you take a look?

[salaros]

Same issue for .NET 9.0, ASP.NET Core-hosted WASM application

VS Microsoft Visual Studio Professional 2022
VisualStudio.17.Release/17.13.6+35931.197