Out of the box Light Switch HTML app has a null error in IE9?


I am trying LightSwitch for the first time, and after making a new HTML C# App - I tried to run it just to see what it looks like. IE9 freezes immediately and I get this error from Visual Studio 2013:

Unhandled exception at line 5, column 19701 in http://localhost:49609/HTMLClient/Scripts/msls-2.5.1.min.js

0x800a138f - Microsoft JScript runtime error: Unable to get value of the property 'cultures': object is null or undefined

Does anyone know whats going on? Thank you!

asked on Stack Overflow Mar 6, 2015 by Lin M • edited May 25, 2015 by Hossein Narimani Rad

2 Answers


I found the issue - I am running Lightswitch in an offline environment and these two scripts were 404'ing:

http://ajax.aspnetcdn.com/ajax/4.0/1/MicrosoftAjax.js http://ajax.aspnetcdn.com/ajax/globalize/0.1.1/globalize.min.js

Once saved in the solution I loaded fine.

answered on Stack Overflow Mar 6, 2015 by Lin M

This impacted me on VS 2015 all browsers. I think this is because of a closed environment for the server.

Lin M is basically correct: Download the two files into the Scripts folder: http://ajax.aspnetcdn.com/ajax/4.0/1/MicrosoftAjax.js http://ajax.aspnetcdn.com/ajax/globalize/0.1.1/globalize.min.js

Next: In default.htm change:

<script type="text/javascript" src="//ajax.aspnetcdn.com/ajax/4.0/1/MicrosoftAjax.js"></script>
<script type="text/javascript" src="//ajax.aspnetcdn.com/ajax/globalize/0.1.1/globalize.min.js"></script>


<script type="text/javascript" src="Scripts/MicrosoftAjax.js"></script>
<script type="text/javascript" src="Scripts/globalize.min.js"></script>
answered on Stack Overflow Jul 3, 2017 by jlo-gmail

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