小编And*_*ilo的帖子

我得到一个错误，尽管按照文档说的完全一样。文件：

data class PlaylistWithSongs(
    @Embedded val playlist: Playlist,
    @Relation(
         parentColumn = "playlistId",
         entityColumn = "songId",
         associateBy = @Junction(PlaylistSongCrossRef::class)
    )
    val songs: List<Song>
)

我的问题：

data class FileEntryWithTags(
        @Embedded val fileEntry: FileEntry,
        @Relation(
                parentColumn = FileEntry.COLUMN_UUID,
                entityColumn = Tag.COLUMN_ID,
                associateBy = @Junction(FileEntryTagCrossRef::class)
        )
        val tags: List<Tag>
)