Merge remote-tracking branch 'origin/sooModalTest' into jiweon827

client/src/Components/EnterRoom.js

 import React, { useState } from 'react'
 import axios from 'axios';
-import { Row, Col, Modal, Button, Form } from 'react-bootstrap';
+import { Row, Col, Modal, Button, Form, Alert } from 'react-bootstrap';
 import catchErrors from '../utils/catchErrors'
 
 
@@ -57,6 +57,9 @@ function EnterRoom(props) {
                 <Modal.Header closeButton>
                     <Modal.Title>참여 코드로 채팅 참가</Modal.Title>
                 </Modal.Header>
+                {error && <Alert variant='danger'>
+                    {error}
+                </Alert>}
                 <Modal.Body>
                     <Form onSubmit={handleSubmit}>
                         <Form.Group as={Row} controlId="formCodeE">
@@ -67,7 +70,7 @@ function EnterRoom(props) {
                         </Form.Group>
                         <Form.Group as={Row}>
                             <Col sm={{ span: 5, offset: 4 }}>
-                                <Button type="submit" style={{backgroundColor:"#9174ad", borderColor:"#9174ad"}} >참가</Button>
+                                <Button type="submit" style={{ backgroundColor: "#9174ad", borderColor: "#9174ad" }} >참가</Button>
                             </Col>
                         </Form.Group>
                     </Form>