Spring Boot Application can not inject Bean from another module

I have the following 3 modules in my spring-boot application:

• web (Entry point / Main Application class annotated with @SpringBootApplication
• persistence
• service

I'm now trying to inject a service in the web module which comes from the service. In the service I'm injecting the repository which comes from the persistence module. When I start the application the following error shows up:

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

Description:

Parameter 0 of constructor in com.project.service.images.ImageService required a bean of type 'com.project.persistence.repositories.ImageRepository' that could not be found.


Action:

Consider defining a bean of type 'com.project.persistence.repositories.ImageRepository' in your configuration.

ImageService class:

package com.project.service.images;

import com.project.common.entities.Image;
import com.project.persistence.repositories.ImageRepository;
import com.project.service.AbstractService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Component;

import javax.persistence.EntityNotFoundException;
import java.util.Date;
import java.util.List;

@Component
public class ImageService extends AbstractService {

    private final ImageRepository imageRepository;

    @Autowired
    public ImageService(ImageRepository imageRepository) {
        this.imageRepository = imageRepository;
    }

    public Image getImage(Long id) {
        return imageRepository.findById(id).orElseThrow(EntityNotFoundException::new);
    }

    public List<Image> getAll() {
        return imageRepository.findAll();
    }

    public List<Image> getAll(Date from) {
        return imageRepository.findByDateRange(from, null);
    }

    public List<Image> getAll(Date from, Date to) {
        return imageRepository.findByDateRange(from, to);
    }

    public List<Image> getAllForDay(Date day) {
        return imageRepository.findAll();
    }
}

ImageRepository class:

package com.project.persistence.repositories;

import com.project.common.entities.Image;
import org.springframework.data.jpa.repository.JpaRepository;
import org.springframework.data.jpa.repository.Query;
import org.springframework.data.repository.query.Param;
import org.springframework.stereotype.Repository;

import java.util.Date;
import java.util.List;

@Repository
public interface ImageRepository extends JpaRepository<Image, Long> {

    @Query("SELECT i FROM Image i WHERE i.created > :from AND i.created < :to")
    public List<Image> findByDateRange(@Param("from") Date from, @Param("to") Date to);
}

And that's how I inject the service into my class in the web module:

@Autowired
private ImageService imageService;

So on I was searching throught the internet and saw some people with similar problems. Then I got the tip that I should add the scanBasePackages to the SpringBootApplication annotation at my application class. So I did this:

package com.project.web;

@SpringBootApplication(scanBasePackages = "com.project.service")
public class Application {

    public static void main(String[] args) {
        SpringApplication.run(Application.class, args);
    }
}

But it's still not working. If I add the specific package for scanning to the annotation com.project.service.images the injection of the ImageService works but then it can't find the ImageRepository in it.

What am I doing wrong?

I know that so many modules doesn't make sense for such a small application but I have to because it's for my apprenticeship and we need to make multiple modules.