[Projeto] [Dependencias]Erro para executar projeto

Pessoal começou a dar um problema de dependencias depois que eu entrei na parte de H2, estranho porque todas as classes estão anotadas, alguem poderia dar um help? org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'topicoController' defined in file [/Users/ramaro/Documents/repositorio/Kotlin/target/classes/br/com/alura/forum/controller/TopicoController.class]: Unsatisfied dependency expressed through constructor parameter 0: Error creating bean with name 'topicoService' defined in file [/Users/ramaro/Documents/repositorio/Kotlin/target/classes/br/com/alura/forum/service/TopicoService.class]: Unsatisfied dependency expressed through constructor parameter 0: Error creating bean with name 'topicoRepository' defined in br.com.alura.forum.repository.TopicoRepository defined in @EnableJpaRepositories declared on ForumApplication: Not a managed type: class br.com.alura.forum.model.Topico

Controller

@RestController
@RequestMapping("/topicos")
class TopicoController(private val topicosService: TopicoService) {

    @GetMapping
    fun listar(): List<TopicoView> {
        return topicosService.listar()
    }

    @GetMapping("/{id}")
    fun buscarPorId(@PathVariable id: Long): TopicoView {
        return topicosService.buscarPorId(id)
    }

    @PostMapping
    fun cadastrar(@RequestBody @Valid form: NovoTopicoForm,
                  uriBuilder: UriComponentsBuilder
    ): ResponseEntity<TopicoView> {
        val topicoView = topicosService.cadastrar(form)
        val uri = uriBuilder.path("/topicos/{topicoView.id}").build().toUri()
        return ResponseEntity.created(uri).body(topicoView)
    }

    @PutMapping
    fun atualizar(@RequestBody @Valid form: AtualizacaoTopicoForm): ResponseEntity<TopicoView> {
        val topicoView = topicosService.atualizar(form)
        return ResponseEntity.ok(topicoView)
    }

    @DeleteMapping("/{id}")
    @ResponseStatus(HttpStatus.NO_CONTENT)
    fun deletar(@PathVariable id: Long) {
        topicosService.deletar(id)
    }
}

Service

package br.com.alura.forum.service

import br.com.alura.forum.dto.AtualizacaoTopicoForm
import br.com.alura.forum.dto.NovoTopicoForm
import br.com.alura.forum.dto.TopicoView
import br.com.alura.forum.exception.NotFoundException
import br.com.alura.forum.mapper.TopicoFormMapper
import br.com.alura.forum.mapper.TopicoViewMapper
import br.com.alura.forum.repository.TopicoRepository
import org.springframework.stereotype.Service
import java.util.stream.Collectors

@Service
class TopicoService(
    private val repository: TopicoRepository,
    private val topicoViewMapper: TopicoViewMapper,
    private val topicoFormMapper: TopicoFormMapper,
    ) {
    private val notFoundMessage: String = "Topico nao encontrado!"

    fun listar(): List<TopicoView> {
        return repository.findAll().stream().map {
            t -> topicoViewMapper.map(t)
        }.collect(Collectors.toList())
    }

    fun buscarPorId(id: Long): TopicoView {
        val topico = repository.findById(id)
            .orElseThrow { NotFoundException(notFoundMessage) }
        return topicoViewMapper.map(topico)
    }

    fun cadastrar(form: NovoTopicoForm): TopicoView {
        val topico = topicoFormMapper.map(form)
        repository.save(topico)
        return topicoViewMapper.map(topico)
    }

    fun atualizar(form: AtualizacaoTopicoForm): TopicoView {
        val topico = repository.findById(form.id).orElseThrow { NotFoundException(notFoundMessage) }
        topico.titulo = form.titulo
        topico.mensagem = form.mensagem
        return topicoViewMapper.map(topico)

    }

    fun deletar(id: Long) {
        repository.deleteById(id)
    }
}

Repository

package br.com.alura.forum.repository

import br.com.alura.forum.model.Curso
import org.springframework.data.jpa.repository.JpaRepository
import org.springframework.stereotype.Repository

@Repository
interface CursoRepository: JpaRepository<Curso, Long> {
}