What is argument of type never is not assignable to parameter of type string in TypeScript

Question

This is my code :

export default class ModelCanvas extends Vue {

        taskName: string = 'New Task';

        robot: Task = new Robot(this.uuid(), this.taskName, [])

       

        configKonva: any = {

            width: WIDTH,

            height: HEIGHT,

            draggable: false,

        };

        $refs!: {

            stage: KonvaStage

            layer: KonvaLayer

            elementList: ElementList

        }

        elementTypes: any[] = [

            {

                name: 'Event',

                component: 'EventElement',

                icon: 'mdi-circle-outline',

            },

            {

                name: 'Control',

                component: 'ControlElement',

                icon: 'mdi-rhombus-outline',

                task: null,

            },

            {

                name: 'Keyword',

                component: 'KeywordElement',

                icon: 'mdi-square-outline',

                task: Keyword,

            },

        ];

I got the following TS error:

TS2345: Argument of type 'never[]' is not assignable to parameter of type 'string'.

What exactly should I do?