CRM 2011 “$ is undefined”

Question

I have created following code, and I have included this as web resource on the CRM 2011 form to be called on field onchange event of lookup field. Everything is working fine

Answer 1

The entity form on which you are working. Go to Form customization->Form properties. You can see the Files(.js) already included for that form.

Click on 'Add'(left top)..and add the JQuery file(like JQuery1.4.4 or higher version) if JQuery file is added in your CRM Webresources, if not then you need to add this file in CRM webresources first.