I experience a quite strange behavior in TextMate since some time.
I had troubles to use the keyboard shortcut for commenting a line (which is Cmd-/ or on my swiss layout it is CMD+SHIFT+7 where SHIFT+7 results in a /) a few times already since I switched to Lion 2 months ago (before I never had any problems). I then used to restart TextMate and it worked again.
But now, restart doesn't solve the problem. So I went into the Bundle Editor and tried to reset the shortcut, and there I can set it to anything I like, but not to Cmd-/! Nothing happens when I want to record the shortcut and press CMD+SHIFT+7`, the input field stays blank!
I have some bundles installed since my switch to Lion (Cucumber, RSpec, RubyAMP, Ruby Debug, Shoulda), so maybe one of those makes troubles?? Or does the fact that I even don't seem to be able to send CMD+SHIFT+7 in the Bundle Editor imply that the Shortcut is blocked from somewhere else "outside" of TextMate?
How should I debug this? Thanks for help.
Turns out it was Skitch that was running and occupied Cmd-Shift-7.
来源：https://stackoverflow.com/questions/11447283/textmate-comment-line-shortcut-does-not-work-anymore-cmd-or-cmd-shift-7-on-m