WebForms UnobtrusiveValidationMode requires a ScriptResourceMapping for 'jquery'. Please add a ScriptResourceMapping named jquery(case-sensitive).
If you've received that error while trying to run a Microsoft ASP.NET webform, then you can easily fix the problem. Add the following snippet in your web.config file.
<appSettings>
<add key="ValidationSettings:UnobtrusiveValidationMode" value="None" />
</appSettings>
After you add the key to your web app, everything should work fine.
