我使用 Blazor 构建服务器端应用程序,我尝试将 https://github.com/Blazored/Toast 添加到项目中,这确实有效,但由于某种原因,我突然开始收到此错误消息:
fail: Microsoft.AspNetCore.Components.Server.Circuits.CircuitHost[111]
Unhandled exception in circuit '_uHkRPxSSxkesQYflYcmwBUPkOEPFVb3cJpYUrXjDgA'.
System.AggregateException: One or more errors occurred. (TypeError: Cannot read properties of null (reading 'removeChild'))
---> System.InvalidOperationException: TypeError: Cannot read properties of null (reading 'removeChild')
at Microsoft.AspNetCore.Components.RenderTree.Renderer.InvokeRenderCompletedCallsAfterUpdateDisplayTask(Task updateDisplayTask, Int32[] updatedComponents)
--- End of inner exception stack trace ---
我检查了我的 git 更改,但没有看到任何异常情况
我的_布局如下所示:
@using Microsoft.AspNetCore.Components.Web
@namespace VTSSupportApp.Pages
@addTagHelper *, Microsoft.AspNetCore.Mvc.TagHelpers
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<base href="~/" />
<link href="https://cdn.jsdelivr.net/npm/[email protected]/dist/css/bootstrap.min.css" rel="stylesheet" integrity="sha384-T3c6CoIi6uLrA9TneNEoa7RxnatzjcDSCmG1MXxSR1GAsXEV/Dwwykc2MPK8M2HN" crossorigin="anonymous">
<link href="https://cdn.jsdelivr.net/npm/[email protected]/font/bootstrap-icons.min.css" rel="stylesheet" />
<link href="_content/Blazor.Bootstrap/blazor.bootstrap.css" rel="stylesheet" />
@* <link rel="stylesheet" href="css/bootstrap/bootstrap.min.css" /> *@
<link href="css/site.css" rel="stylesheet" />
<link href="VTSSupportApp.styles.css" rel="stylesheet" />
<component type="typeof(HeadOutlet)" render-mode="ServerPrerendered" />
</head>
<body>
@RenderBody()
<div id="blazor-error-ui">
<environment include="Staging,Production">
An error has occurred. This application may no longer respond until reloaded.
</environment>
<environment include="Development">
An unhandled exception has occurred. See browser dev tools for details.
</environment>
<a href="" class="reload">Reload</a>
<a class="dismiss">🗙</a>
</div>
<script src="_framework/blazor.server.js"></script>
<script src="_framework/blazor.server.js"></script>
<script src="https://cdn.jsdelivr.net/npm/[email protected]/dist/js/bootstrap.bundle.min.js" integrity="sha384-C6RzsynM9kWDrMNeT87bh95OGNyZPhcTNXj1NW7RuBCsyN/o0jlpcV8Qyq46cDfL" crossorigin="anonymous"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/Chart.js/4.0.1/chart.umd.js" integrity="sha512-gQhCDsnnnUfaRzD8k1L5llCCV6O9HN09zClIzzeJ8OJ9MpGmIlCxm+pdCkqTwqJ4JcjbojFr79rl2F1mzcoLMQ==" crossorigin="anonymous" referrerpolicy="no-referrer"></script> <!-- Add chart.js reference if Chart components are used in the application. -->
</body>
</html>
我的浏览器显示如下:
我觉得奇怪的是,有时当我开始调试时,我没有看到错误,但我无法使用菜单切换页面,其他时候,如果不更改代码,它就会显示错误消息....