在浏览器中运行ionic项目js报错

wanjueming

请教一下，运行项目ng-cordova.js一直报如下错误，请高手解答，先谢谢了
TypeError: $window.cordova is undefined

	[url=]$window.cordova.plugins.notification.local.registerPermission(function (result) [/url]

js是这么导入的

  <!-- ng cordova js -->
  <script src="lib/ngCordova/dist/ng-cordova.js"></script>

  <!-- cordova script (this will be a 404 during development) -->
  <script src="cordova.js"></script>