Unable to open item for playback (Object not found):
"F:\歐美金唱片\群星《歐美金唱盤》專輯@圣城家園@空の軌跡\群星《歐美金唱盤CD2》專輯.cue" / index: 13

Unable to open item for playback (Object not found):
"F:\歐美金唱片\群星《歐美金唱盤》專輯@圣城家園@空の軌跡\群星《歐美金唱盤CD2》專輯.cue" / index: 14

Unable to open item for playback (Object not found):
"F:\歐美金唱片\群星《歐美金唱盤》專輯@圣城家園@空の軌跡\群星《歐美金唱盤CD2》專輯.cue" / index: 15

Unable to open item for playback (Object not found):
"F:\歐美金唱片\群星《歐美金唱盤》專輯@圣城家園@空の軌跡\群星《歐美金唱盤CD2》專輯.cue" / index: 16

Unable to open item for playback (Object not found):
"F:\歐美金唱片\群星《歐美金唱盤》專輯@圣城家園@空の軌跡\群星《歐美金唱盤CD2》專輯.cue" / index: 17

Unable to open item for playback (Object not found):
"F:\歐美金唱片\群星《歐美金唱盤》專輯@圣城家園@空の軌跡\群星《歐美金唱盤CD2》專輯.cue" / index: 18

原因：第三方修改了ape文件的文件名，擅自加入了@圣城家園@空の軌跡，而播放器是根據cue里面制定的路徑來尋找文件的，所以找不到。
解決辦法：打開cue文件，查看內容，找到FILE：
PERFORMER "Unknown Artist"
TITLE "歐美金唱盤 - CD2"
FILE "Various.Artists.-.[歐美金唱盤.CD2].專輯.(ape).ape" WAVE
TRACK 01 AUDIO
TITLE "Only Love 只有愛"
PERFORMER "Trademark 真情馬克樂隊"
FLAGS DCP
INDEX 01 00:00:00
TRACK 02 AUDIO
TITLE "Another Day In Paradise 天堂的另一天"
PERFORMER "Phil Colins 非爾.柯林斯"
FLAGS DCP
INDEX 00 04:06:06
INDEX 01 04:08:06
TRACK 03 AUDIO
TITLE "Careless Whisper 無心快語"
PERFORMER "Wham 威猛樂隊"
FLAGS DCP
INDEX 00 09:39:04
INDEX 01 09:41:04
TRACK 04 AUDIO
TITLE "Hero 英雄"
PERFORMER "Mariah Carey 瑪麗亞.凱莉"
FLAGS DCP
INDEX 00 14:46:06
INDEX 01 14:48:06
TRACK 05 AUDIO
TITLE "Hotel California 加州旅店"
PERFORMER "Eagles 老鷹樂隊"
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 艾米麗亞"
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. 云頓"
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 邁克搖滾合唱團"
FLAGS DCP
INDEX 00 33:39:71
INDEX 01 33:41:71
TRACK 09 AUDIO
TITLE "Because You Loved Me 全因你愛我"
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 愛情故事"
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 承諾來之不易"
PERFORMER "Caron Nightingale 卡諾.南汀格爾"
FLAGS DCP
INDEX 00 45:51:06
INDEX 01 45:53:06
TRACK 12 AUDIO
TITLE "When A Man Loves A Woman 當男人愛上女人"
PERFORMER "Michale Bolton 麥克爾.波頓"
FLAGS DCP
INDEX 00 48:43:16
INDEX 01 48:45:16
TRACK 13 AUDIO
TITLE "Longer 天長地久"
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 失落的愛"
PERFORMER "Air Supply 空氣供給樂隊"
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.克勞克蘭"
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 藍各.克麗絲"
FLAGS DCP
INDEX 00 66:31:60
INDEX 01 66:33:60
TRACK 18 AUDIO
TITLE "Bressanone 布列瑟濃"
PERFORMER "Matthew Lien 馬修.連恩"
FLAGS DCP
INDEX 00 70:35:08
INDEX 01 70:37:08
修改ape文件名為對應的文件名即可，保證cue和ape在一個路徑下面，即可在foobar中打開。

p.s：如果開始foobar無法打開ape，那么是沒有安裝monkey解碼器，在官網上（http://www.foobar2000.org/components/view/foo_input_monkey）下載即可，放在foobar安裝目錄下面的compenent文件夾下面，注意此時要重啟foobar，才能保證新的組件可用。

總結：1. 解碼器一定要安裝。
           2. 根據錯誤信息找到路徑的問題，修改即可。