如何解决“未找到视图"问题? asp.net核心mvc项目中的异常 [英] How do I solve a "view not found" exception in asp.net core mvc project

问题描述

我正在尝试创建一个使用VS Code在OSX上运行的ASP.NET Core MVC测试应用程序. 访问默认的首页/索引(或我尝试过的任何其他视图)时，出现未找到视图"异常.

I'm trying to create a ASP.NET Core MVC test app running on OSX using VS Code. I'm getting a 'view not found' exception when accessing the default Home/index (or any other views I tried).

这是启动配置

    public void Configure(IApplicationBuilder app) {

        // use for development
        app.UseDeveloperExceptionPage();
        app.UseDefaultFiles();
        app.UseStaticFiles();

        app.UseMvc( routes => {
            routes.MapRoute(
                name: "default",
                template: "{controller=Home}/{action=Index}"
            );
        });
    }

我在Views/Home/index.cshtml中定义了视图，并且project.json中包含以下软件包

And I have the view defined in Views/Home/index.cshtml, and I have the following packages included on project.json

"dependencies": {
"Microsoft.NETCore.App": {
  "version": "1.0.0-rc2-3002702",
  "type": "platform"
},
"Microsoft.AspNetCore.Razor.Tools" : "1.0.0-preview1-final",
"Microsoft.AspNetCore.Diagnostics": "1.0.0-rc2-final",
"Microsoft.AspNetCore.Mvc": "1.0.0-rc2-final",
"Microsoft.AspNetCore.Server.IISIntegration": "1.0.0-rc2-final",
"Microsoft.AspNetCore.Server.Kestrel": "1.0.0-rc2-final",
"Microsoft.AspNetCore.StaticFiles": "1.0.0-rc2-final",
"Microsoft.AspNetCore.Routing": "1.0.0-rc2-final"
},

最后，这是我得到的例外.

And finally, this is the exception I get.

System.InvalidOperationException: The view 'Index' was not found. The following locations were searched:
    /Views/Home/Index.cshtml
    /Views/Shared/Index.cshtml
    at Microsoft.AspNetCore.Mvc.ViewEngines.ViewEngineResult.EnsureSuccessful(IEnumerable`1 originalLocations)
    at Microsoft.AspNetCore.Mvc.ViewResult.<ExecuteResultAsync>d__26.MoveNext()
    --- End of stack trace from previous location where exception was thrown --- ...

关于我可能会缺少的任何建议吗?

Any suggestions of what I might be missing ?

推荐答案

我发现了这条缺失的部分.我最终在VS2015中创建了一个ASP.NET Core项目，然后比较了差异.事实证明我在主WebHostBuilder中缺少.UseContentRoot(Directory.GetCurrentDirectory()).

I found this missing piece. I ended up creating a ASP.NET Core project in VS2015 and then compare for differences. It turns out I was missing .UseContentRoot(Directory.GetCurrentDirectory()) from WebHostBuilder in main.

添加此内容后:

public static void Main(string[] args)
{
    new WebHostBuilder()
        .UseKestrel()
        .UseContentRoot(Directory.GetCurrentDirectory())
        .UseStartup<Startup>()
        .Build()
        .Run();
}

然后我得到了有关缺少preserveCompilationContext的异常.一旦添加到project.json中，我的视图就会显示正确.

I then got an exception regarding missing preserveCompilationContext. Once added in project.json my view shows correct.

"buildOptions": {
    "preserveCompilationContext": true,
    "emitEntryPoint": true
},

这篇关于如何解决“未找到视图"问题? asp.net核心mvc项目中的异常的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！