Autogenerated code can't compile in VS preview version. #35554
Description
This issue has been moved from a ticket on Developer Community.
[severity:I'm unable to use this version]
Hello,
I use Visual Studio Community 2019 Preview 16.11.0 Preview 4.0
ASP.NET MVC Core 3.1 project
I receive error message for file _PageLayout.cshtml.g.cs
Error CS8400 Feature 'target-typed object creation' is not available in C# 8.0. Please use language version 9.0 or greater. YYY xxx\obj\Debug\netcoreapp3.1\Razor\Areas\Clubs\Views\Shared_PageLayout.cshtml.g.cs 289 Active
[Microsoft.AspNetCore.Razor.TagHelpers.HtmlTargetElementAttribute("vc:clubs-nav-bar")]
public class __Generated__ClubsNavBarViewComponentTagHelper : Microsoft.AspNetCore.Razor.TagHelpers.TagHelper
{
private readonly global::Microsoft.AspNetCore.Mvc.IViewComponentHelper __helper = null;
public __Generated__ClubsNavBarViewComponentTagHelper(global::Microsoft.AspNetCore.Mvc.IViewComponentHelper helper)
{
__helper = helper;
}
[Microsoft.AspNetCore.Razor.TagHelpers.HtmlAttributeNotBoundAttribute, global::Microsoft.AspNetCore.Mvc.ViewFeatures.ViewContextAttribute]
public global::Microsoft.AspNetCore.Mvc.Rendering.ViewContext ViewContext { get; set; }
public override async global::System.Threading.Tasks.Task ProcessAsync(Microsoft.AspNetCore.Razor.TagHelpers.TagHelperContext __context, Microsoft.AspNetCore.Razor.TagHelpers.TagHelperOutput __output)
{
(__helper as global::Microsoft.AspNetCore.Mvc.ViewFeatures.IViewContextAware)?. Contextualize(ViewContext);
var __helperContent = await __helper. InvokeAsync("ClubsNavBar", ProcessInvokeAsyncArgs(__context));
__output. TagName = null;
__output. Content.SetHtmlContent(__helperContent);
}
private Dictionary<string, object> ProcessInvokeAsyncArgs(Microsoft.AspNetCore.Razor.TagHelpers.TagHelperContext __context)
{
Dictionary<string, object> args = new();<---289
return args;
}
}
When I try to use not preview version project compiled well.
Best regards Alex
Original Comments
Alex Nek on 8/14/2021, 00:53 PM:
The same part generated with Microsoft Visual Studio Community 2019 Version 16.11.0
[Microsoft.AspNetCore.Razor.TagHelpers.HtmlTargetElementAttribute("vc:clubs-nav-bar")]
public class __Generated__ClubsNavBarViewComponentTagHelper : Microsoft.AspNetCore.Razor.TagHelpers.TagHelper
{
private readonly global::Microsoft.AspNetCore.Mvc.IViewComponentHelper __helper = null;
public __Generated__ClubsNavBarViewComponentTagHelper(global::Microsoft.AspNetCore.Mvc.IViewComponentHelper helper)
{
__helper = helper;
}
[Microsoft.AspNetCore.Razor.TagHelpers.HtmlAttributeNotBoundAttribute, global::Microsoft.AspNetCore.Mvc.ViewFeatures.ViewContextAttribute]
public global::Microsoft.AspNetCore.Mvc.Rendering.ViewContext ViewContext { get; set; }
public override async global::System.Threading.Tasks.Task ProcessAsync(Microsoft.AspNetCore.Razor.TagHelpers.TagHelperContext __context, Microsoft.AspNetCore.Razor.TagHelpers.TagHelperOutput __output)
{
(__helper as global::Microsoft.AspNetCore.Mvc.ViewFeatures.IViewContextAware)?.Contextualize(ViewContext);
var __helperContent = await __helper.InvokeAsync("ClubsNavBar", new { });
__output.TagName = null;
__output.Content.SetHtmlContent(__helperContent);
}
}
Alex Nek on 8/14/2021, 01:04 PM:
The same error into
“Microsoft Visual Studio Community 2022 Preview (64-bit)
Version 17.0.0 Preview 3.0”
Feedback Bot on 8/15/2021, 07:08 PM:
We have directed your feedback to the appropriate engineering team for further evaluation. The team will review the feedback and notify you about the next steps.
Original Solutions
(no solutions)