sessionRepository в com.spar sh .conferencedemo.controllers.SessionController требуется компонент типа, который не может быть найден

Question

Я пытался создать простое приложение для весенней загрузки CRUD после просмотра онлайн-курса. Но когда я запустил приложение, оно показало ошибку «Поле speakerRepository в com.spar sh .conferencedemo.controllers.SpeakerController требуется компонент типа 'com.spar sh .conferencedemo.repositories.SpeakerRepository', который не может быть найден «. Я не понимаю, что я делаю не так. Также я новичок в весеннем ботинке. Так что любая помощь, пожалуйста. Я публикую свой код ниже.

Это мой SessionController

package com.sparsh.conferencedemo.controllers;


import com.sparsh.conferencedemo.models.Session;
import com.sparsh.conferencedemo.repositories.SessionRepository;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.http.HttpStatus;
import org.springframework.stereotype.Component;
import org.springframework.web.bind.annotation.*;

import java.util.List;

@RestController
@RequestMapping("/api/v1/sessions")
public class SessionController {

    @Autowired
    private SessionRepository sessionRepository;

    @GetMapping
    private List<Session> list(){
        return sessionRepository.findAll();
    }
    @GetMapping
    @RequestMapping("{id}")
    private Session get(@PathVariable Long id){
        return sessionRepository.getOne(id);
    }

    @PostMapping
    @ResponseStatus(HttpStatus.CREATED)
    public Session create(@RequestBody final Session session){
        return sessionRepository.saveAndFlush(session);
    }

 @RequestMapping(value="{id}", method = RequestMethod.DELETE)
    public void delete(@PathVariable Long id){
        sessionRepository.
    }


    @RequestMapping(value="{id}", method = RequestMethod.PUT)
    public Session update(@PathVariable Long id, @RequestBody Session session){
        Session existingSesseion=sessionRepository.getOne(id);
        BeanUtils.copyProperties(session, existingSesseion, "session_id");
        return sessionRepository.saveAndFlush(existingSesseion);
    }
}

Это мой SessionRepository интерфейс

package com.sparsh.conferencedemo.repositories;
import com.sparsh.conferencedemo.models.Session;
import org.springframework.data.jpa.repository.JpaRepository;
public interface SessionRepository extends JpaRepository<Session, Long> {

}

Это мой pom. xml file

<?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>2.2.6.RELEASE</version>
        <relativePath/> <!-- lookup parent from repository -->
    </parent>
    <groupId>com.sparsh</groupId>
    <artifactId>conference-demo</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <name>conference-demo</name>
    <description>Demo project for Spring Boot</description>

    <properties>
        <java.version>1.8</java.version>
    </properties>

    <dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
            <exclusions>
                <exclusion>
                    <groupId>org.junit.vintage</groupId>
                    <artifactId>junit-vintage-engine</artifactId>
                </exclusion>
            </exclusions>
        </dependency>
    </dependencies>

    <build>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
            </plugin>
        </plugins>
    </build>

</project>

Это моя модель для сессии

package com.sparsh.conferencedemo.models;
import javax.persistence.*;
import java.util.List;
@Entity(name="sessions")
public class Session {
    @Id
    @GeneratedValue(strategy = GenerationType.IDENTITY)
    private Long session_id;
    private String session_name;
    private String session_description;
    private String session_length;

    @ManyToMany
    @JoinTable(
            name="session_speakers",
            joinColumns = @JoinColumn(name = "session_id"),
            inverseJoinColumns = @JoinColumn(name = "speaker_id")
    )
    private List<Speaker> speakers;

    public Session(){

    }

    public List<Speaker> getSpeakers() {
        return speakers;
    }

    public void setSpeakers(List<Speaker> speakers) {
        this.speakers = speakers;
    }


    public Long getSession_id() {
        return session_id;
    }

    public void setSession_id(Long session_id) {
        this.session_id = session_id;
    }

    public String getSession_name() {
        return session_name;
    }

    public void setSession_name(String session_name) {
        this.session_name = session_name;
    }

    public String getSession_description() {
        return session_description;
    }

    public void setSession_description(String session_description) {
        this.session_description = session_description;
    }

    public String getSession_length() {
        return session_length;
    }

    public void setSession_length(String session_length) {
        this.session_length = session_length;
    }
}

Это мой основной класс приложений

package com.sparsh.conferencedemo;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
@SpringBootApplication
public class ConferenceDemoApplication {
    public static void main(String[] args) {
        SpringApplication.run(ConferenceDemoApplication.class, args);
    }
}

Это модули, которые я использую в IntelliJ, это ссылка на изображение https://imgur.com/a/riTdeot

Это ошибка, которую я получаю в консоли

 :: Spring Boot ::        (v2.2.6.RELEASE)

2020-04-29 12:44:29.844  INFO 10572 --- [           main] c.s.c.ConferenceDemoApplication          : Starting ConferenceDemoApplication on DESKTOP-JBQF1EV with PID 10572 (C:\Users\spars\OneDrive\Desktop\conference-demo\target\classes started by spars in C:\Users\spars\OneDrive\Desktop\conference-demo)
2020-04-29 12:44:29.859  INFO 10572 --- [           main] c.s.c.ConferenceDemoApplication          : No active profile set, falling back to default profiles: default
2020-04-29 12:44:38.081  INFO 10572 --- [           main] o.s.b.w.embedded.tomcat.TomcatWebServer  : Tomcat initialized with port(s): 8080 (http)
2020-04-29 12:44:38.174  INFO 10572 --- [           main] o.apache.catalina.core.StandardService   : Starting service [Tomcat]
2020-04-29 12:44:38.175  INFO 10572 --- [           main] org.apache.catalina.core.StandardEngine  : Starting Servlet engine: [Apache Tomcat/9.0.33]
2020-04-29 12:44:38.582  INFO 10572 --- [           main] o.a.c.c.C.[Tomcat].[localhost].[/]       : Initializing Spring embedded WebApplicationContext
2020-04-29 12:44:38.582  INFO 10572 --- [           main] o.s.web.context.ContextLoader            : Root WebApplicationContext: initialization completed in 8561 ms
2020-04-29 12:44:39.083  WARN 10572 --- [           main] ConfigServletWebServerApplicationContext : Exception encountered during context initialization - cancelling refresh attempt: org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'sessionController': Unsatisfied dependency expressed through field 'sessionRepository'; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type 'com.sparsh.conferencedemo.repositories.SessionRepository' available: expected at least 1 bean which qualifies as autowire candidate. Dependency annotations: {@org.springframework.beans.factory.annotation.Autowired(required=true)}
2020-04-29 12:44:39.090  INFO 10572 --- [           main] o.apache.catalina.core.StandardService   : Stopping service [Tomcat]
2020-04-29 12:44:39.647  INFO 10572 --- [           main] ConditionEvaluationReportLoggingListener : 

Error starting ApplicationContext. To display the conditions report re-run your application with 'debug' enabled.
2020-04-29 12:44:40.370 ERROR 10572 --- [           main] o.s.b.d.LoggingFailureAnalysisReporter   : 

***************************
APPLICATION FAILED TO START
***************************

Description:

Field sessionRepository in com.sparsh.conferencedemo.controllers.SessionController required a bean of type 'com.sparsh.conferencedemo.repositories.SessionRepository' that could not be found.

The injection point has the following annotations:
    - @org.springframework.beans.factory.annotation.Autowired(required=true)


Action:

Consider defining a bean of type 'com.sparsh.conferencedemo.repositories.SessionRepository' in your configuration.


Process finished with exit code 1