Expected behavior no warning should be given about the imports

Actual behavior Cannot resolve symbol 'MDBTooltip warning': Resources (screenshots, code snippets etc.)

import React, { Component } from "react"; import { MDBTooltip, MDBBtn, MDBIcon } from 'mdbreact';

class ToolTip extends Component { render() {

    return (
        <MDBTooltip placement="right" >
            <MDBBtn tag="a" size="sm" floating gradient="aqua">
                <MDBIcon icon="question" />
            </MDBBtn>
            <div>
                Test text
            </div>
        </MDBTooltip>
    );
} }

export default ToolTip;