UnsatisfiedDependencyException ao subir a aplicação

Olá!

Estou fazendo o curso "Agilidade e TDD: um dia no desenvolvimento de software", na segunda vídeo aula da seção "Implementando uma feature".

Baixei o projeto e apenas adicionei os códigos indicados nas aulas, mas quando tento subir a aplicação, me retornam as exceções:

org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'aircraftModelController' defined in file [C:\Users\maite.refosco\Desktop\Alura - Java\clines\target\classes\br\com\caelum\clines\api\aircraftmodels\AircraftModelController.class]: Unsatisfied dependency expressed through constructor parameter 0: Error creating bean with name 'aircraftModelService' defined in file [C:\Users\maite.refosco\Desktop\Alura - Java\clines\target\classes\br\com\caelum\clines\api\aircraftmodels\AircraftModelService.class]: Unsatisfied dependency expressed through constructor parameter 0: Error creating bean with name 'aircraftModelRepository' defined in br.com.caelum.clines.api.aircraftmodels.AircraftModelRepository defined in @EnableJpaRepositories declared on JpaRepositoriesRegistrar.EnableJpaRepositoriesConfiguration: Not a managed type: class br.com.caelum.clines.shared.domain.AircraftModel

Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'aircraftModelRepository' defined in br.com.caelum.clines.api.aircraftmodels.AircraftModelRepository defined in @EnableJpaRepositories declared on JpaRepositoriesRegistrar.EnableJpaRepositoriesConfiguration: Not a managed type: class br.com.caelum.clines.shared.domain.AircraftModel

Caused by: java.lang.IllegalArgumentException: Not a managed type: class br.com.caelum.clines.shared.domain.AircraftModel

Classes que os erros se referem:

AircraftModelController:

package br.com.caelum.clines.api.aircraftmodels;

import lombok.AllArgsConstructor;
import org.springframework.http.ResponseEntity;
import org.springframework.web.bind.annotation.*;

import javax.validation.Valid;
import java.net.URI;
import java.util.List;

import static org.springframework.http.ResponseEntity.created;

@RestController
@RequestMapping("aircraft-model")
@AllArgsConstructor
public class AircraftModelController {
    private final AircraftModelService service;

    @PostMapping
    ResponseEntity<?> createBy(@RequestBody @Valid AircraftModelForm form) {
        var id = service.createAircraftModelBy(form);

        var uri = URI.create("/aircraft-model/").resolve(String.valueOf(id));

        return created(uri).build();
    }

    @GetMapping
    List<AircraftModelView> list() {
        return service.listAllAircraftModels();
    }

    @GetMapping("{id}")
    AircraftModelView show(@PathVariable Long id) {
        return service.showAircraftModelBy(id);
    }
}

AircraftModelService:

package br.com.caelum.clines.api.aircraftmodels;

import br.com.caelum.clines.shared.exceptions.ResourceAlreadyExistsException;
import br.com.caelum.clines.shared.exceptions.ResourceNotFoundException;
import lombok.AllArgsConstructor;
import org.springframework.stereotype.Service;

import java.util.List;

import static java.util.stream.Collectors.toList;

@Service
@AllArgsConstructor
public class AircraftModelService {

    private final AircraftModelRepository repository;
    private final AircraftModelFormMapper formMapper;
    private final AircraftModelViewMapper viewMapper;

    public Long createAircraftModelBy(AircraftModelForm form) {
        repository.findByDescription(form.getDescription()).ifPresent(
                (existingAircraftModel) -> {
                    throw new ResourceAlreadyExistsException("Aircraft Model already exists");
                });
        var aircraftModel = formMapper.map(form);

        repository.save(aircraftModel);

        return aircraftModel.getId();
    }

    public List<AircraftModelView> listAllAircraftModels() {
        return repository.findAll().stream().map(viewMapper::map).collect(toList());
    }

    public AircraftModelView showAircraftModelBy(Long aircraftModelId) {
        var aircraftModel = repository.findById(aircraftModelId).orElseThrow(() -> new ResourceNotFoundException("Cannot find aircraft model"));
        return viewMapper.map(aircraftModel);
    }
}