I am trying to upload a .js file (my suite script) on to NetSuite but am getting the following error.

Fail to evaluate script: {"type":"error.SuiteScriptModuleLoaderError","name":"UNEXPECTED_ERROR","message":"missing ; before statement (SS_SCRIPT_FOR_METADATA#15)","stack":[]}

The Script in question:

/**
 * @NApiVersion 2.x
 * @NScriptType UserEventScript
 */

    define([  N/record  ],function(record) {
        function afterSubmit(context) {
            
            // Load the record.
            var rec = record.load({
                type: record.Type.INVENTORY_ITEM,
                id: 4918
            });
    
            let pricing_group = rec.getValue({
                fieldId:  pricinggroup 
            });
    
            if (part_group ==   ) return;
    
            let current_desc = rec.getValue({
                fieldId:  salesdescription 
            });
    
            rec.setValue({
                fieldId:  salesdescription ,
                value: pricing_group +   |   + current_desc,
                ignoreFieldChange: true,
                forceSyncSourcing: true
            });
     
            // Save the record.
            try {
                var recId = rec.save();
    
                log.debug({
                    title:  Record updated successfully ,
                    details:  Id:   + recId
                });
    
            } catch (e) {
                    log.error({
                        title: e.name,
                        details: e.message
                    });
            }
        }
        return {
            afterSubmit: afterSubmit
        };
    });

The syntax is correct running it on a syntax validator so I m not sure where ; is missing.