Using String Literals ref is depracated

[josephakayesi]

How do I fix this issue when using the modal box please ?

[abdullahizzuddiin]

Insert this on your constructor constructor(props) { super(props); this.modalRef = null }

Update your ref attribute on your modal Component to <Modal ref={element => this.modalRef = element} > </Modal>

and use this.modalRef to access Modal's function

Source: React Documenation