ReferenceError in Dynamics 365 Webresource - dynamics-crm

Question

I am using web resource in CRM of Dynamics 365. Recently, such an error occurred, and I didn't know why it happened and I asked a question.
Error log content:
ReferenceError: $ is not defined
I'll attach the part where the error log appears.
function setSerialnoinfo(){
var serialno = Xrm.Page.data.entity.attributes.get("skr_serialno");
if(Xrm.Page.getAttribute("skr_serialno").getValue() != null){
var serialnoid = serialno.getValue()[0].id;
var query = "/skr_installationSet(guid'"+serialnoid+"')";
$.ajax({
type: "GET",
async : false,
contentType: "application/json; charset=utf-8",
datatype: "json",
url: "/XRMServices/2011/OrganizationData.svc"+query,
beforeSend: function (XMLHttpRequest) {
XMLHttpRequest.setRequestHeader("Accept", "application/json");
},
success: function(data, textStatus, XmlHttpRequest) {
var result = data.d;
var skr_productid = result.skr_product.Id;
var skr_productname = result.skr_product.Name;
var skr_productentity = result.skr_product.LogicalName;
if (!(skr_productid == null || skr_productid == "")){
Xrm.Page.data.entity.attributes.get("skr_product").setValue([{id: skr_productid, name: skr_productname, entityType: skr_productentity}]);
}
//var skr_salestype = result.skr_salestype.Value;
var skr_warrantytype = result.skr_warrantytype.Value;
if(skr_warrantytype == 1){
skr_warrantytype = 0;
}
Xrm.Page.data.entity.attributes.get("skr_servicefeetype").setValue(skr_warrantytype);
var skr_servicecontracttype = result.skr_servicecontracttype.Value;
Xrm.Page.data.entity.attributes.get("skr_servicecontracttype").setValue(skr_servicecontracttype);
var skr_modelid = result.skr_model.Id;
var skr_modelname = result.skr_model.Name;
var skr_modelentity = result.skr_model.LogicalName;
if (!(skr_modelid == null || skr_modelid == "")){
Xrm.Page.data.entity.attributes.get("skr_setname").setValue([{id: skr_modelid, name: skr_modelname, entityType: skr_modelentity}]);
setsetname();
setErrorModel();
}
Xrm.Page.getAttribute("skr_product").setSubmitMode("always");
Xrm.Page.getAttribute("skr_servicefeetype").setSubmitMode("always");
Xrm.Page.getAttribute("skr_setname").setSubmitMode("always");
Xrm.Page.getAttribute("skr_servicecontracttype").setSubmitMode("always");
Xrm.Page.getAttribute("skr_productseries").setSubmitMode("always");
},
error: function (XMLHttpRequest, textStatus, errorThrown) {
var userlcid = Xrm.Page.context.getUserLcid();
if(userlcid == "1042"){
alert("오류가 발생 했습니다. 다시 시도해 주세요.");
}else if(userlcid == "1033"){
alert("Unknown Error: Try again.");
}
}
});
}
}
This is an error in testing with the user's new UI version before Microsoft's 10 update.
I also want to know if the grammar of web resource changes a little after the update.

Answer 1

You are using jQuery library in your web resource, somehow the link is broken or conflict happening.
Validate you are adding/loading jquery.js or jquery.min.js in your HTML. Check entity form before this function residing library being referred - this is unsupported for this very same broken behavior
Otherwise if you are relying on native library reference, rather add your own library reference like above & use jQuery.noConflict(). Read more
Stick with XMLHttpRequest for supported scope & most important Xrm.Page is deprecated, pls start using the ExecutionContext.getFormContext