Page_ClientValidate is not a function

Question

I have a client side code i'm running on localhost which works fine, but when i copy the same files to the server which runs the site, and try to do the same, the site fails to run the same code.

Specifically, this code:

var flag = window.Page_ClientValidate('vgPerosnal');

It works fine when i run it through localhost, but when i get to this line through the website, i get the next error in chrome debugger:

Uncaught TypeError: window.Page_ClientValidate is not a function

I checked to see if there function is really missing, but the file "WebUIValidation.js" which holds the function is copied as well.

I searched the web for hours for solutions with no luck. Please help me.

Answer 1

UPDATE: it turns out it was a bigger problem. the answer to it is here

OLD: *After hours of searching i didn't find the perfect answer, including trying to reinstall .NET framework, but i managed to overcome the problem. i copied this line to the code:

<script src="/Scripts/WebForms/WebUIValidation.js"></script>

and now it works.