AbstractMessageBrokerConfiguration 类无法打开，因为它不存在

如何解决AbstractMessageBrokerConfiguration 类无法打开，因为它不存在

类路径资源 [org/springframework/messaging/simp/config/AbstractMessagebrokerConfiguration.class] 无法打开，因为它不存在 无法处理配置类 [com.helpmydesk.WebSocketConfig.WsConfig] 的导入候选；嵌套异常是 java.io.FileNotFoundException: 类路径资源 [org/springframework/messaging/simp/config/AbstractMessagebrokerConfiguration.class] 无法打开，因为它不存在

Pom.xml

<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>
    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.3.9.BUILD-SNAPSHOT</version>
        <relativePath /> <!-- lookup parent from repository -->
    </parent>
    <groupId>com.helpmydesk</groupId>
    <artifactId>helpmydesk</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <name>helpmydesk</name>
    <description>HelpMyDesk</description>
    <properties>
        <java.version>11</java.version>
    </properties>
    <dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-data-jpa</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-thymeleaf</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>

        <!-- https://mvnrepository.com/artifact/org.springframework.boot/spring-boot-starter-security -->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-security</artifactId>
            <version>2.3.7.RELEASE</version>
        </dependency>


  <!-- https://mvnrepository.com/artifact/org.springframework/spring-websocket -->

<dependency>
    <groupId>org.springframework</groupId>
    <artifactId>spring-websocket</artifactId>
    <version>5.2.6.RELEASE</version>
</dependency>

 




    <!-- https://mvnrepository.com/artifact/org.springframework.boot/spring-boot-starter-reactor-netty -->
<dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-reactor-netty</artifactId>
    <version>2.3.9.RELEASE</version>
</dependency>

    


        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-devtools</artifactId>
            <scope>runtime</scope>
            <optional>true</optional>
        </dependency>
        

        <dependency>
            <groupId>javax.validation</groupId>
            <artifactId>validation-api</artifactId>
        </dependency>

        <!-- https://mvnrepository.com/artifact/org.hibernate/hibernate-validator -->
        <dependency>
            <groupId>org.hibernate</groupId>
            <artifactId>hibernate-validator</artifactId>
            <version>6.1.5.Final</version>
        </dependency>




        <dependency>
            <groupId>MysqL</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <scope>runtime</scope>
        </dependency>
        

类 WsConfig

package com.helpmydesk.WebSocketConfig;

import org.springframework.context.annotation.Configuration;
import org.springframework.messaging.simp.config.MessagebrokerRegistry;
import org.springframework.web.socket.config.annotation.EnableWebSocketMessagebroker;
import org.springframework.web.socket.config.annotation.StompEndpointRegistry;
import org.springframework.web.socket.config.annotation.WebSocketMessagebrokerConfigurer;

@Configuration
@EnableWebSocketMessagebroker
public class WsConfig implements WebSocketMessagebrokerConfigurer  {
    
    
    @Override
    public void registerStompEndpoints(StompEndpointRegistry registry) {
        // Todo Auto-generated method stub
        WebSocketMessagebrokerConfigurer.super.registerStompEndpoints(registry);
    }
    
    
    @Override
    public void configureMessagebroker(MessagebrokerRegistry registry) {
        // Todo Auto-generated method stub
        WebSocketMessagebrokerConfigurer.super.configureMessagebroker(registry);
    }