maro

Yes! Thank you for your guide. I have got the solution!

Oh yes! According to your guide, I find a solution. It was probably due to my Japanese Keyboard layout. If I set a shortcut containing punctuations in Alfred, it doesn't work. But if I use the standard Keyboard, it works again. So I just repalced all hotkeys combination containing punctuations in Alfred to another. Now everything is OK. Thank you!

I mean I can't use the shortcut (Cmd + Opt + ] ) to move code line down in Xode. And I found if I killed the Alfred, the shortcut resumed. So I think there is a conflict between them but I can't elegantly resolve it.

It doesn't work that using Xcode Shortcut (Cmd + Opt + ] ) to move code line down undering alfred has being opened.