the project created is not as expected

### URL

https://dotnet.microsoft.com/en-us/learn/aspnet/blazor-tutorial/intro

### Operating system

macos

### More information about your system

intel , macpro, tahoe 26.2

### Description

in https://dotnet.microsoft.com/en-us/learn/aspnet/blazor-tutorial/create , create project, select of .sln in vscode, but the project generated is always .slnx

I can't perform next step, debug and run, error.

### dotnet --info

.NET SDK:
Version: 10.0.102
Commit: 4452502459
Workload version: 10.0.102
MSBuild version: 18.0.7+445250245

Runtime Environment:
OS Name: Mac OS X
OS Version: 26.2
OS Platform: Darwin
RID: osx-x64
Base Path: /usr/local/share/dotnet/sdk/10.0.102/

.NET workloads installed:
There are no installed workloads to display.
Configured to use workload sets when installing new manifests.

Host:
Version: 10.0.2
Architecture: x64
Commit: 4452502459

.NET SDKs installed:
5.0.100 [/usr/local/share/dotnet/sdk]
6.0.200 [/usr/local/share/dotnet/sdk]
10.0.102 [/usr/local/share/dotnet/sdk]

.NET runtimes installed:
Microsoft.AspNetCore.App 5.0.0 [/usr/local/share/dotnet/shared/Microsoft.AspNetCore.App]
Microsoft.AspNetCore.App 6.0.2 [/usr/local/share/dotnet/shared/Microsoft.AspNetCore.App]
Microsoft.AspNetCore.App 10.0.2 [/usr/local/share/dotnet/shared/Microsoft.AspNetCore.App]
Microsoft.NETCore.App 5.0.0 [/usr/local/share/dotnet/shared/Microsoft.NETCore.App]
Microsoft.NETCore.App 6.0.2 [/usr/local/share/dotnet/shared/Microsoft.NETCore.App]
Microsoft.NETCore.App 10.0.2 [/usr/local/share/dotnet/shared/Microsoft.NETCore.App]

Other architectures found:
None

Environment variables:
Not set

global.json file:
Not found

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