Unable to open item for playback (Object not found):
"F:\欧美金唱片\群星《欧美金唱盘》专辑@圣城家园@空の轨迹\群星《欧美金唱盘CD2》专辑.cue" / index: 13

Unable to open item for playback (Object not found):
"F:\欧美金唱片\群星《欧美金唱盘》专辑@圣城家园@空の轨迹\群星《欧美金唱盘CD2》专辑.cue" / index: 14

Unable to open item for playback (Object not found):
"F:\欧美金唱片\群星《欧美金唱盘》专辑@圣城家园@空の轨迹\群星《欧美金唱盘CD2》专辑.cue" / index: 15

Unable to open item for playback (Object not found):
"F:\欧美金唱片\群星《欧美金唱盘》专辑@圣城家园@空の轨迹\群星《欧美金唱盘CD2》专辑.cue" / index: 16

Unable to open item for playback (Object not found):
"F:\欧美金唱片\群星《欧美金唱盘》专辑@圣城家园@空の轨迹\群星《欧美金唱盘CD2》专辑.cue" / index: 17

Unable to open item for playback (Object not found):
"F:\欧美金唱片\群星《欧美金唱盘》专辑@圣城家园@空の轨迹\群星《欧美金唱盘CD2》专辑.cue" / index: 18

原因：第三方修改了ape文件的文件名，擅自加入了@圣城家园@空の轨迹，而播放器是根据cue里面制定的路径来寻找文件的，所以找不到。
解决办法：打开cue文件，查看内容，找到FILE：
PERFORMER "Unknown Artist"
TITLE "欧美金唱盘 - CD2"
FILE "Various.Artists.-.[欧美金唱盘.CD2].专辑.(ape).ape" WAVE
TRACK 01 AUDIO
TITLE "Only Love 只有爱"
PERFORMER "Trademark 真情马克乐队"
FLAGS DCP
INDEX 01 00:00:00
TRACK 02 AUDIO
TITLE "Another Day In Paradise 天堂的另一天"
PERFORMER "Phil Colins 非尔.柯林斯"
FLAGS DCP
INDEX 00 04:06:06
INDEX 01 04:08:06
TRACK 03 AUDIO
TITLE "Careless Whisper 无心快语"
PERFORMER "Wham 威猛乐队"
FLAGS DCP
INDEX 00 09:39:04
INDEX 01 09:41:04
TRACK 04 AUDIO
TITLE "Hero 英雄"
PERFORMER "Mariah Carey 玛丽亚.凯莉"
FLAGS DCP
INDEX 00 14:46:06
INDEX 01 14:48:06
TRACK 05 AUDIO
TITLE "Hotel California 加州旅店"
PERFORMER "Eagles 老鹰乐队"
FLAGS DCP
INDEX 00 19:08:35
INDEX 01 19:10:35
TRACK 06 AUDIO
TITLE "Big Big World 大大世界"
PERFORMER "Emilia 艾米丽亚"
FLAGS DCP
INDEX 00 26:24:12
INDEX 01 26:26:12
TRACK 07 AUDIO
TITLE "Sealed With A Kiss 以吻封城"
PERFORMER "Bobby Vinton 波比. 云顿"
FLAGS DCP
INDEX 00 30:39:41
INDEX 01 30:41:41
TRACK 08 AUDIO
TITLE "That's Why(You Go Away) 你要走的原因"
PERFORMER "Michacl Leams To Rock 迈克摇滚合唱团"
FLAGS DCP
INDEX 00 33:39:71
INDEX 01 33:41:71
TRACK 09 AUDIO
TITLE "Because You Loved Me 全因你爱我"
PERFORMER "Celine Dion 席琳.狄翁"
FLAGS DCP
INDEX 00 37:57:17
INDEX 01 37:59:17
TRACK 10 AUDIO
TITLE "Love Story 爱情故事"
PERFORMER "Andy Williams 安迪.威廉姆斯"
FLAGS DCP
INDEX 00 42:34:30
INDEX 01 42:36:30
TRACK 11 AUDIO
TITLE "Promises Don't Come Easy 承诺来之不易"
PERFORMER "Caron Nightingale 卡诺.南汀格尔"
FLAGS DCP
INDEX 00 45:51:06
INDEX 01 45:53:06
TRACK 12 AUDIO
TITLE "When A Man Loves A Woman 当男人爱上女人"
PERFORMER "Michale Bolton 麦克尔.波顿"
FLAGS DCP
INDEX 00 48:43:16
INDEX 01 48:45:16
TRACK 13 AUDIO
TITLE "Longer 天长地久"
PERFORMER "Dan Fogelberg 丹.佛格伯"
FLAGS DCP
INDEX 00 52:46:16
INDEX 01 52:48:16
TRACK 14 AUDIO
TITLE "All Out Of Love 失落的爱"
PERFORMER "Air Supply 空气供给乐队"
FLAGS DCP
INDEX 00 56:08:06
INDEX 01 56:10:06
TRACK 15 AUDIO
TITLE "What A Wonderful World 美妙的世界"
PERFORMER "Louis Armstrong 路易斯.阿姆斯特朗"
FLAGS DCP
INDEX 00 60:04:29
INDEX 01 60:06:29
TRACK 16 AUDIO
TITLE "Angel 天使"
PERFORMER "Sarah Mclachlan 莎拉.克劳克兰"
FLAGS DCP
INDEX 00 62:25:49
INDEX 01 62:27:49
TRACK 17 AUDIO
TITLE "The Color Of The Night 夜色"
PERFORMER "Lauren Christy 蓝各.克丽丝"
FLAGS DCP
INDEX 00 66:31:60
INDEX 01 66:33:60
TRACK 18 AUDIO
TITLE "Bressanone 布列瑟浓"
PERFORMER "Matthew Lien 马修.连恩"
FLAGS DCP
INDEX 00 70:35:08
INDEX 01 70:37:08
修改ape文件名为对应的文件名即可，保证cue和ape在一个路径下面，即可在foobar中打开。

p.s：如果开始foobar无法打开ape，那么是没有安装monkey解码器，在官网上（http://www.foobar2000.org/components/view/foo_input_monkey）下载即可，放在foobar安装目录下面的compenent文件夹下面，注意此时要重启foobar，才能保证新的组件可用。

总结：1. 解码器一定要安装。
           2. 根据错误信息找到路径的问题，修改即可。