AppleScript远程单击

我正在尝试删除鼠标事件,并尝试使用以下小脚本:

set machineB to "eppc://user:pw@myothermac.local"
tell application "Finder" of machine machineB
    say "Hello This is so stupid"
end tell
tell application "System Events" of machine machineB
    click at {100, 100}
end tell

剧本 say 可以,但引发以下错误:

error "System Events got an error: Can’t continue click." number -1708

–1708 <reference> doesn’t understand the <commandName> message.

我做错什么了?我可以用它在我自己的机器上“点击”(至少它不会抛出错误)?

[编辑]

这和我的另一个问题有关 here.