将ngRoute作为依赖引入后AngularJS代码无法运行，恳请协助排查问题

Hey there, let's work through why your AngularJS app isn't running after adding ngRoute as a dependency. Looking over your code, I’ve spotted a few key issues that are likely causing the problem:

1. Typo in Angular Material CSS File Path #

Your link to the Angular Material stylesheet has a typo in the file extension:

<link href="vendor/angular/angular-material.min.cs" rel="stylesheet" media="all">

The extension should be .css (you missed the final "s"). This will cause a 404 error when the browser tries to load the stylesheet, which can disrupt Angular's initialization flow and break your app.

2. Missing Route Configuration #

While you’ve injected ngRoute into your module, you haven’t set up any route rules. The <data-ng-view> directive won’t render anything without defined routes, and while this alone might not crash the app, combined with the stylesheet error it can lead to unexpected behavior.

Fixed Code Example #

Here’s your code with these issues resolved, plus a basic route configuration to get ng-view working:

<!DOCTYPE html>
<html lang="en" ng-app="myApp">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<meta http-equiv="X-UA-Compatible" content="ie=edge">
<title>Document</title>
<!-- Angular Material style sheet (fixed extension) -->
<link href="vendor/angular/angular-material.min.css" rel="stylesheet" media="all">
<!-- Angular Material requires Angular.js Libraries -->
<script src='vendor/angular/angular.min.js'></script>
<script src='vendor/angular/angular-route.min.js'></script>
<script src='vendor/angular/angular-aria.min.js'></script>
<script src='vendor/angular/angular-messages.min.js'></script>
<script src='vendor/angular/angular-animate.min.js'></script>
<!-- Angular Material Library -->
<script src='vendor/angular/angular-material.min.js'></script>
</head>
<body>
<h3>HELLO!!! {{2+2}}</h3>
<data-ng-view></data-ng-view>
<script>
var app = angular.module('myApp', ['ngRoute']);

// Basic route configuration
app.config(function($routeProvider) {
  $routeProvider
    .when('/', {
      template: '<p>Welcome to the default route!</p>'
    })
    .otherwise({
      redirectTo: '/'
    });
});
</script>
</body>
</html>

Additional Troubleshooting Steps #

• Check Browser Console: Press F12 to open developer tools, then go to the Console tab. Look for 404 errors (indicating missing files) or Angular-specific errors like Module not available (which would mean angular-route.min.js isn’t loading correctly).
• Verify Library Versions: Make sure your AngularJS core version matches the version of ngRoute, angular-material, and other related libraries. Mismatched versions often cause compatibility issues.
• Confirm File Paths: Double-check that all your JS and CSS files exist at the paths you’ve specified. If you’re using a project structure where vendor is in a different location, adjust the paths accordingly.

内容的提问来源于stack exchange，提问作者Abdul_MZaidu