applescript - 无法将文件名转换为别名

Question

这个小程序

tell application "iTunes"
set new_playlist to get first user playlist whose id is 20721
set nexttrack to (add(POSIX file ( get "/Users/paul/tmp/Music4/My Bloody Valentine - m b v - 2013 [FLAC][24-96][WEB]/09 Wonder 2.flac") as alias) to new_playlist)
set trackname to name of nexttrack
end tell

失败了

javax.script.ScriptException: The variable nexttrack is not defined.

我认为前面的行是问题，但我看不出它有什么问题。（注意起点是文件名以 unix / notation 提供）

Answer 1

尝试：

set songAlias to alias (POSIX file "/Users/paul/tmp/Music4/My Bloody Valentine - m b v - 2013 [FLAC][24-96][WEB]/09 Wonder 2.flac")

tell application "iTunes"
    set new_playlist to get first user playlist whose id is 20721
    set nexttrack to add songAlias to new_playlist
    set trackname to name of nexttrack
end tell