Updated from 11.0.6 to 11.2.0 and namespace Avalonia.Browser can't be found in Browser project

[DonMatron]

The Problem

After migration to the newest version available I'm getting the following error when trying to build Browser project:

using Avalonia.Browser; <- The namespace does not exist in the namespace Avalonia.

Repro Steps

Created multiple projects using Avalonia Cross Platform Application template in Visual Studio. Default Avalonia version there now is 11.0.6, so I updated it to the latest available for today: 11.2.0.

Expected behavior

Web application would update to newest version. If other actions are necessary, it would be great to have the migration guide.

Browser.csproj

<Project Sdk="Microsoft.NET.Sdk">
  <PropertyGroup>
    <TargetFramework>net8.0</TargetFramework>
    <RuntimeIdentifier>browser-wasm</RuntimeIdentifier>
    <WasmMainJSPath>AppBundle\main.js</WasmMainJSPath>
    <OutputType>Exe</OutputType>
  </PropertyGroup>

  <ItemGroup>
    <WasmExtraFilesToDeploy Include="AppBundle\**" />
  </ItemGroup>

  <ItemGroup>
    <PackageReference Include="Avalonia.Browser" Version="$(AvaloniaVersion)" /> <!--11.2.0-->
  </ItemGroup>

</Project>

P.S.

The solution offered in #16634 doesn't work for me and I would like to use a more consistent approach to solving this problem.

[IanRawley]

Did you try this from the same thread?
#16634 (comment)

[DonMatron]

Yes, but it is rather a hack to build the project.

When built, app launches and "Powered by
Avalonia UI" is shown, but the following errors are in browser console.

blazor.boot.json:1

Failed to load resource: the server responded with a status of 404 ()

hook.js:608

MONO_WASM: Failed to load config file ./blazor.boot.json SyntaxError: Unexpected end of JSON input SyntaxError: Unexpected end of JSON input
    at https://localhost:5001/dotnet.js:3:25341
    at https://localhost:5001/dotnet.js:3:25769
    at async https://localhost:5001/dotnet.js:3:25042
    at async https://localhost:5001/dotnet.js:3:24902
    at async Object.create (https://localhost:5001/dotnet.js:3:34468)
    at async https://localhost:5001/main.js:6:23
Error: Failed to load config file ./blazor.boot.json SyntaxError: Unexpected end of JSON input SyntaxError: Unexpected end of JSON input
    at https://localhost:5001/dotnet.js:3:25341
    at https://localhost:5001/dotnet.js:3:25769
    at async https://localhost:5001/dotnet.js:3:25042
    at async https://localhost:5001/dotnet.js:3:24902
    at async Object.create (https://localhost:5001/dotnet.js:3:34468)
    at async https://localhost:5001/main.js:6:23
    at https://localhost:5001/dotnet.js:3:26573
    at async https://localhost:5001/dotnet.js:3:24902
    at async Object.create (https://localhost:5001/dotnet.js:3:34468)
    at async https://localhost:5001/main.js:6:23
overrideMethod @ hook.js:608

index.html:1

Uncaught Error: Failed to load config file ./blazor.boot.json SyntaxError: Unexpected end of JSON input SyntaxError: Unexpected end of JSON input
    at config.ts:300:63
    at config.ts:286:44
    at async config.ts:223:28
    at async run.ts:479:28
    at async Object.create (run.ts:361:72)
    at async main.js:6:23
    at config.ts:300:63
    at config.ts:286:44
    at async config.ts:223:28
    at async run.ts:479:28
    at async Object.create (run.ts:361:72)
    at async main.js:6:23
    at config.ts:255:22
    at async run.ts:479:28
    at async Object.create (run.ts:361:72)
    at async main.js:6:23

promise-controller.ts:30

Uncaught (in promise) Error: Failed to load config file ./blazor.boot.json SyntaxError: Unexpected end of JSON input SyntaxError: Unexpected end of JSON input
    at config.ts:300:63
    at config.ts:286:44
    at async config.ts:223:28
    at async run.ts:479:28
    at async Object.create (run.ts:361:72)
    at async main.js:6:23
    at config.ts:300:63
    at config.ts:286:44
    at async config.ts:223:28
    at async run.ts:479:28
    at async Object.create (run.ts:361:72)
    at async main.js:6:23
    at config.ts:255:22
    at async run.ts:479:28
    at async Object.create (run.ts:361:72)
    at async main.js:6:23

[maxkatz6]

net8.0

It should be net8.0-browser