[Err] Nest can't resolve dependencies of the BowlingballService (start:dev)

@Injectable() export default class BowlingballService { constructor( @InjectRepository(BowlingballEntity) private readonly bowlingballRepository: Repository, ) {}

async postBowlingball(body: CreateBowlingballDto) { try { const result = await this.bowlingballRepository.save(body);

  // 볼링볼 이름이 중복되는지 확인하는 로직 필요
  if (!result) {
    throw new Error('Bowlingball not found');
  }

  return result;
} catch (error) {
  // 에러 처리 로직
  throw error;
}

}

async getBowlingball(id: number): Promise { try { const result = await this.bowlingballRepository.findOne({ where: { id }, });

  // 볼링볼 id 가 없을 경우
  if (!result) {
    throw new Error('Bowlingball not found');
  }

  return result;
} catch (error) {
  throw error;
}

}

/**

• 볼링볼 post 내용을 가져오는 API
• 볼링공 info, 볼링공 star, like, comment return
• @param id

• @returns */ async getBowlingballPost(id: number) { try { const bowlingballInfo = await this.bowlingballRepository.findOne({ where: { id }, });

  if (!bowlingballInfo) {
    throw new Error('Bowlingball not found');
  }
  
  // star 가져오기
  // const star = await.this.starRepository.find({
  //   where
  // })
  
  // like 가져오기
  
  // comment 가져오기
  

  } catch (error) { throw error; } }

async getBowlingballList(): Promise<BowlingballEntity[]> { try { const result = await this.bowlingballRepository.find();

  if (!result) {
    throw new Error('Bowlingball not found');
  }

  return result;
} catch (error) {
  throw error;
}

} }

[Nest] 67286 - 11/22/2023, 10:08:52 PM ERROR [ExceptionHandler] Nest can’t resolve dependencies of the BowlingballService (?). Please make sure that the argument BowlingballEntityRepository at index [0] is available in the AppModule context.

Potential solutions:

• Is AppModule a valid NestJS module?
• If BowlingballEntityRepository is a provider, is it part of the current AppModule?
• If BowlingballEntityRepository is exported from a separate @Module, is that module imported within AppModule? @Module({ imports: [ /* the Module containing BowlingballEntityRepository */ ] })