[dotnet-sdk-9.0.100-preview.3.24175.24] CS1646 error when building Hawaso #10186
Description
Application Name: Hawaso
OS: Windows 10 22H2
CPU: X64
.NET Build Number: dotnet-sdk-9.0.100-preview.3.24175.24
App Source Location Checking at:
https://devdiv.visualstudio.com/DevDiv/_workitems/edit/2012415
Github Link:
https://github.com/VisualAcademy/Hawaso
Verify Scenarios:
- Windows10 21h2 x64 + dotnet-sdk-9.0.100-preview.3.24175.24: Fail
- Windows10 21h2 x64 + dotnet-sdk-9.0.100-preview.2.24129.7: Pass
- Windows10 21h2 x64 + dotnet-sdk-8.0.202: Pass
Description:
CS1646 error shows when we build Hawaso\Hawaso project with dotnet-sdk-9.0.100-preview.3.24175.24
Minimal Repro steps (Demo attached):
Demo.zip
The machine has dotnet-sdk-9.0.100-preview.3.24175.24 installed.
- Create default 8.0 ASP .NET Core Web App(Razor Pages).
- Create class MyTagHelper.cs:
using Microsoft.AspNetCore.Razor.TagHelpers;
using System;
namespace Demo
{
[HtmlTargetElement("mytag", Attributes = "myattr")]
public class MyTagHelper:TagHelper
{
[HtmlAttributeName("myattr")]
public int MyAttr { get; set; }
}
}
- Import taghelper in _ViewImports.cshtml:
@using Demo
@namespace Demo.Pages
@addTagHelper *, Microsoft.AspNetCore.Mvc.TagHelpers
@addTagHelper *, Demo
- Add the following code in Index.cshtml:
@page
@model IndexModel
@{
ViewData["Title"] = "Home page";
int count = 0;
}
<div>
<mytag myattr='Convert.ToInt32(@count)'></mytag>
</div>
7.Build the app with 9.0.100-preview.3.24175.24 SDK
Expected Result: Build successfully.
Actual Result:
Build failed with error: CS1646 Keyword, identifier, or string expected after verbatim specifier: @.
dotnet info:
.NET SDK:
Version: 9.0.100-preview.3.24175.24
Commit: 09d6f381e6
Workload version: 9.0.100-manifests.77bb7ba9
MSBuild version: 17.10.0-preview-24175-03+89b42a486
Runtime Environment:
OS Name: Windows
OS Version: 10.0.19045
OS Platform: Windows
RID: win-x64
Base Path: C:\Program Files\dotnet\sdk\9.0.100-preview.3.24175.24\
.NET workloads installed:
There are no installed workloads to display.
Host:
Version: 9.0.0-preview.3.24172.9
Architecture: x64
Commit: 9e6ba1f68c
.NET SDKs installed:
9.0.100-preview.3.24175.24 [C:\Program Files\dotnet\sdk]
.NET runtimes installed:
Microsoft.AspNetCore.App 9.0.0-preview.3.24172.13 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
Microsoft.NETCore.App 9.0.0-preview.3.24172.9 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
Microsoft.WindowsDesktop.App 9.0.0-preview.3.24175.3 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]
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