Help im having trouble with ember cli ActiveModelAdapter

for some reason im getting this error message

compiling it i got this error

embersite/adapters/application.js: line 31, col 18, 'get' is not defined.
embersite/adapters/application.js: line 36, col 9, 'result' is not defined.
embersite/adapters/application.js: line 38, col 16, 'result' is not defined.
embersite/adapters/application.js: line 72, col 17, 'forEach' is not defined.
embersite/adapters/application.js: line 78, col 24, 'InvalidError' is not define
embersite/adapters/application.js: line 43, col 22, 'root' is defined but never

Uncaught ReferenceError: forEach is not defined

for this:

I already inserted this

import Ember from “ember”; import DS from ‘ember-data’;

 ajaxError: function(jqXHR) {
    var error = this._super(jqXHR);

    if (jqXHR && jqXHR.status === 501) {

        var response = Ember.$.parseJSON(jqXHR.responseText),
            errors = {};

        if (response.errors !== undefined) {
            var jsonErrors = response.errors;
            //errors = jsonErrors
             *

forEach(Ember.keys(jsonErrors), function(key) { errors[Ember.String.camelize(key)] = jsonErrors[key]; });

  •       }
    
          return new InvalidError(errors);
      } else {
          return error;
      }
    
    },

what should i add ? im stuck

embersite/adapters/application.js: line 31, col 18, 'get' is not defined.
embersite/adapters/application.js: line 36, col 9, 'result' is not defined.
embersite/adapters/application.js: line 38, col 16, 'result' is not defined.
embersite/adapters/application.js: line 72, col 17, 'forEach' is not defined.
embersite/adapters/application.js: line 78, col 24, 'InvalidError' is not define
embersite/adapters/application.js: line 43, col 22, 'root' is defined but never

6 errors

===== 1 JSHint Error


Build successful - 21397ms.

this is my code

//import DS from ‘ember-data’; // //var ApplicationAdapter = DS.FixtureAdapter.extend({}); // //export default ApplicationAdapter;

 import Ember from "ember";
    import DS from 'ember-data';
    
    var get = Ember.get;
    var forEach = Ember.ArrayPolyfills.forEach;
    
    var ApplicationAdapter = DS.ActiveModelAdapter.extend({
    
        namespace:'api',
        host: 'http://localhost/saleserp',
        corsWithCredentials: true,
    
        pathForType: function (type) {
            var decamelized = Ember.String.decamelize(type);
            return Ember.String.pluralize(decamelized);
        },
    
        createRecord: function (store, type, record) {
    
    
            var url = this.getCorrectPostUrl(record, this.buildURL(type.typeKey));
            var data = store.serializerFor(type.typeKey).serialize(record);
    
            return this.ajax(url, "POST", { data: data });
        },
    
        updateRecord: function (store, type, record) {
    
            var data = store.serializerFor(type.typeKey).serialize(record);
            console.log(record);
            var id = get(record, 'id'); //todo find pk (not alw

ays id) return this.ajax(this.buildURL(type.typeKey, id), “PUT”, { data: data }); }, find: function (store, type, id) {

        result = this.ajax(this.buildURL(type.typeKey, id), 'GET');

        return result;
    },

    findMany: function (store, type, ids, parent) {

        var adapter, root, url, endpoint, attribute;
        adapter = this;
        if (parent) {


            attribute = this.getHasManyAttributeName(type, parent, ids);
            endpoint = store.serializerFor(type.typeKey).keyForAttribute(attribute);
            url = this.buildFindManyUrlWithParent(type, parent, endpoint);
        } else {
            Ember.assert("You need to add belongsTo for type (" + type.typeKey + "). No Parent for this record was found");
        }
        return this.ajax(url, "GET");
    },

    buildURL: function (type, id) {
        return this._super(type, id) + '.json';
    },

    ajaxError: function(jqXHR) {
        var error = this._super(jqXHR);

        if (jqXHR && jqXHR.status === 501) {

            var response = Ember.$.parseJSON(jqXHR.responseText),
                errors = {};

            if (response.errors !== undefined) {
                var jsonErrors = response.errors;

                forEach(Ember.keys(jsonErrors), function(key) {

                    errors[Ember.String.camelize(key)] = jsonErrors[key];
                });
            }

            return new DS.InvalidError(errors);
        } else {
            return error;
        }
    },

    getBelongsTo: function (record) {

        var totalParents = [];
        record.eachRelationship(function (name, relationship) {
            if (relationship.kind === 'belongsTo') {
                totalParents.push(name);
            }
        }, this);
        return totalParents;
    },

    getNonEmptyRelationships: function (record, totalParents) {

        var totalHydrated = [];
        totalParents.forEach(function (item) {
            if (record.get(item) !== null) {
                totalHydrated.push(item);
            }
        }, this);
        return totalHydrated;
    },

    getCorrectPostUrl: function (record, url) {

        var totalParents = this.getBelongsTo(record);

        var totalHydrated = this.getNonEmptyRelationships(record, totalParents);

        if (totalParents.length < 1 && totalHydrated.length <= 1) {

            return this.buildUrlWithParentWhenAvailable(record, url, totalHydrated);
        }

        if (totalParents.length === 1 && totalHydrated.length === 1) {
            //console.log(4324);
            var parent_value = record.get(totalParents[0]).get('id'); //todo find pk (not always id)
            var parent_plural = Ember.String.pluralize(totalParents[0]);
            var endpoint = url.split('/').reverse()[1];
            console.log(endpoint, parent_plural + "/" + parent_value + "/" + endpoint);
            return url.replace(parent_plural + "/" + parent_value + "/" + endpoint);
        }

        return url;
    },

    buildUrlWithParentWhenAvailable: function (record, url, totalHydrated) {

        if (record && url && totalHydrated && totalHydrated.length > 0) {
            var parent_type = totalHydrated[0];
            var parent_pk = record.get(parent_type).get('id'); //todo find pk (not always id)
            console.log(record);
            var parent_plural = Ember.String.pluralize(parent_type);
            var endpoint = url.split('/').reverse()[1];
            url = url.replace(endpoint, endpoint + '/' + parent_plural + "/" + parent_pk);
        }

        return url;
    },

    buildFindManyUrlWithParent: function (type, parent, endpoint) {
        console.log(123);
        var root, url, parentValue;
        console.log(parent);
        parentValue = parent.get('id'); //todo find pk (not always id)
        root = parent.constructor.typeKey;
        url = this.buildURL(root, parentValue);
        url = url.substr(0, url.length - 5);
        return url + '/' + endpoint + '.json';
    },

    /**
     Extract the attribute name given the parent record, the ids of the referenced model, and the type of
     the referenced model.

     Given the model definition

     ````
     App.User = DS.Model.extend({
          username: DS.attr('string'),
              aliases: DS.hasMany('speaker', { async: true})
          favorites: DS.hasMany('speaker', { async: true})
      });
     ````

     with a model object

     ````
     user1 = {
          id: 1,
          name: 'name',
          aliases: [2,3],
          favorites: [4,5]
      }

     type = App.Speaker;
     parent = user1;
     ids = [4,5]
     name = getHasManyAttributeName(type, parent, ids) // name === "favorites"
     ````

     @method getHasManyAttributeName
     @param {subclass of DS.Model} type
     @param {DS.Model} parent
     @param {Array} ids
     @returns String
     */
    getHasManyAttributeName: function (type, parent, ids) {
        var attributeName;
        console.log(234);
        parent.eachRelationship(function (name, relationship) {
            var relationshipIds;
            if (relationship.kind === "hasMany" && relationship.type.typeKey === type.typeKey) {
                relationshipIds = parent._data[name].mapBy('id');
                // check if all of the requested ids are covered by this attribute
                if (Ember.EnumerableUtils.intersection(ids, relationshipIds).length === ids.length) {
                    attributeName = name;
                }
            }
        });

        return attributeName;
    }

});

export default ApplicationAdapter;