JavaScript Runtime error 'ko' is undefined

knockout-3.0, knockout.js

Solution

The error should become from the included javascript. May be they aren't available on the server. The follow snippet works.

<html>
<head>
    <meta charset="utf-8" />
    <title>App1</title>
    <script src="http://knockoutjs.com/downloads/knockout-3.0.0.debug.js" type="text/javascript"></script>
</head>
<body>
    <p>Hello, <span data-bind="text:name"></span>!</p>
    <script>
        ko.applyBindings({name:ko.observable('World')});  
    </script>
</body>
</html>

Problem

I am new to KnockOut js.When I tried a simple Hello World Example in Visual Studio 2012 ,I am getting an runtime exception saying "Javascript Run time error:ko is undefined".Please help me this is my code ``` <!DOCTYPE html> <html> <head> <meta charset="utf-8" /> <title>App1</title> <!-- WinJS references --> <link href="//Microsoft.WinJS.1.0/css/ui-dark.css" rel="stylesheet" /> <script src="//Microsoft.WinJS.1.0/js/base.js"></script> <script src="//Microsoft.WinJS.1.0/js/ui.js"></script> <!-- App1 references --> <link href="/css/default.css" rel="stylesheet" /> <script src="/js/default.js"></script> <script src="/js/knockout-3.0.0.js" type="text/javascript"></script> <script src="/js/jquery.min.js" type="text/javascript"></script> </head> <body> <p>Hello, <span data-bind="text:name"></span>!</p> <script> ko.applyBindings({name:ko.observable('World')}); </script> </body> </html> ```

Original source