I have been working on Angular 5 Project. In this Project there is requirement to use CKEditor. I have integrated CKEditor successfully. Now I have requirement to use @mentions plugin. I have added code for mention plugin plugin <ckeditor [(ngModel)]="textdata" #myckeditor="ngModel" name="myckeditor" required [config]="ckeConfig" debounce="500"> </ckeditor> this.myckeditor.valueAccessor.instance.config.extraPlugins = "mentions"; but when I am running this application I am getting an Error. How can I resolve this error and get plugin reference? Continue reading...