Avalonia.Browser cannot run correctly

[292390450]

Describe the bug

I used the command dotnet new avalonia.xplatto create a project that included Browser , Run Browser Project, The webpage cannot be opened normally

To Reproduce

1. dotnet new avalonia.xplat
2. cd the Browser project
3. dotnet run
   
   4.Hold down Ctrl and click http://localhost:5235/

Expected behavior

I am executing dotnet serve -p 5000 command in the published folder

Open address http://localhost:5000
Still lacking many files

Avalonia version

11.1.0

OS

Windows

Additional context

No response

[maxkatz6]

Make sure you have latest .NET SDK and workloads installed.

[maxkatz6]

PS E:\Work\Projects> mkdir browsertest
PS E:\Work\Projects> cd .\browsertest\
PS E:\Work\Projects\browsertest> dotnet new avalonia.xplat
The template "Avalonia Cross Platform Application" was created successfully.
PS E:\Work\Projects\browsertest> cd .\browsertest.Browser\
PS E:\Work\Projects\browsertest\browsertest.Browser> dotnet run
WasmAppHost --use-staticwebassets --runtime-config E:\Work\Projects\browsertest\browsertest.Browser\bin\Debug\net8.0-browser\browsertest.Browser.runtimeconfig.json

App url: http://localhost:5235/
App url: https://localhost:7169/
Debug at url: http://localhost:5235/_framework/debug
Debug at url: https://localhost:7169/_framework/debug

[maxkatz6]

And

PS E:\Work\Projects\browsertest\browsertest.Browser> dotnet publish
Restore complete (0.4s)
You are using a preview version of .NET. See: https://aka.ms/dotnet-support-policy
  browsertest succeeded (0.6s) → E:\Work\Projects\browsertest\browsertest\bin\Release\net8.0\browsertest.dll
  browsertest succeeded (0.1s) → E:\Work\Projects\browsertest\browsertest\bin\Release\net8.0\browsertest.dll
  browsertest.Browser succeeded with 5 warning(s) (18.6s) → bin\Release\net8.0-browser\publish\
Build succeeded with 5 warning(s) in 36.5s
PS E:\Work\Projects\browsertest\browsertest.Browser> cd .\bin\Release\net8.0-browser\publish\wwwroot\

    Directory: E:\Work\Projects\browsertest\browsertest.Browser\bin\Release\net8.0-browser\publish\wwwroot

Mode                 LastWriteTime         Length Name
----                 -------------         ------ ----
d-----         7/25/2024   6:26 PM                _framework
-a----         7/25/2024   6:21 PM           1069 app.css
-a----         7/25/2024   6:21 PM         176111 favicon.ico
-a----         7/25/2024   6:21 PM          11135 index.html
-a----         7/25/2024   6:21 PM            436 main.js
PS E:\Work\Projects\browsertest\browsertest.Browser\bin\Release\net8.0-browser\publish\wwwroot> dotnet serve -p
 5000
Starting server, serving .
Listening on:
  http://localhost:5000

[maxkatz6]

I am executing dotnet serve -p 5000 command in the published folder

"avalonia.js" file should be inside of "_framework" folder. You either have old templates version, or your old installation .NET 8.0.100 had some kind of a bug - please make sure that both are latest.

[292390450]

I created the project using the latest template 11.1.0, and the .net SDK is also the latest

😔😔

[maxkatz6]

Run dotnet workload update.

[psulek]

I can confirm, for me dotnet workload update helps for me.

[cbordeman]

This doesn't work for me. I have the latest templates, latest .net 9 SDK, installed the wasm workload and and I've done dotnet workload update. Then I regenerated the entire solution from scratch using the latest templates. It's unchanged and yet that avalonia.js is not copied in.

WTH!!

[nref]

This happened to me on macOS Rider from the template after I had just installed .NET 9 and updated the Avalonia templates with dotnet new install Avalonia.Templates but had not updated the workloads. sudo dotnet workload install wasm-tools fixed it for me. Didn't have to generate a new project or even restart Rider. The next build used the new workload and the launched page worked.