Estoy usando la biblioteca de paginación y quiero inyectar una fuente de datos en mi modelo de vista. Mi fábrica se parece a:

 class ArticleDataSourceFactory @Inject constructor( val articleRepository: ArticleRepository ) : DataSource.Factory<Long, Article>() { override fun create(): DataSource<Long, Article> { return ArticleDateKeyedDataSource(articleRepository) } }

Mi fuente de datos:

 class ArticleDateKeyedDataSource( private val repository: ArticleRepository ) : ItemKeyedDataSource<Long, Article>() { override fun loadInitial(params: LoadInitialParams<Long>, callback: LoadInitialCallback<Article>) { val articles = repository.getInitial(params.requestedInitialKey!!, params.requestedLoadSize) callback.onResult(articles) } override fun loadAfter(params: LoadParams<Long>, callback: LoadCallback<Article>) { val articles = repository.getAfter(params.key, params.requestedLoadSize) callback.onResult(articles) } override fun loadBefore(params: LoadParams<Long>, callback: LoadCallback<Article>) { val articles = repository.getBefore(params.key, params.requestedLoadSize) callback.onResult(articles) } override fun getKey(item: Article): Long { return item.createdAt } }

Y mi modelo de vista:

 class ArticleFragmentViewModel @Inject constructor( private val dataSourceFactory: ArticleDataSourceFactory ) : BaseViewModel() { var initialArticlePosition = 0L val navigateToArticleDetails: MutableLiveData<SingleEvent<Long>> = MutableLiveData() val articlesLiveList: LiveData<PagedList<Article>> get() { val config = PagedList.Config.Builder() .setEnablePlaceholders(false) .setPageSize(5) .build() return LivePagedListBuilder(dataSourceFactory, config) .setInitialLoadKey(initialArticlePosition) .setFetchExecutor(Executors.newSingleThreadExecutor()) .build() } fun onArticleSelected(createdAt: Long) { navigateToArticleDetails.value = SingleEvent(createdAt) } }

Después de reconstruir, aparece un error:

 error: cannot access DataSource class file for androidx.paging.DataSource not found Consult the following stack trace for details.

¿Qué significa? No tengo idea, lo que hago mal. Por ejemplo, no tengo ningún problema para inyectar el repositorio.