Take the 2-minute tour ×
Super User is a question and answer site for computer enthusiasts and power users. It's 100% free, no registration required.

When I open a C++ file and press C-space to try to select some codes, but it doesn't work now. And there's an error message at the bottom: symbol's function definition is void semantic-mrub-update. How to resolve this problem?

share|improve this question
1  
I assume that your goal is to enable set-mark-command using C-space. The function that is linked to your C-space is traceable to . . . lisp/cedet/semantic/mru-bookmark.el in the source code of a recent version of Emacs Trunk. If you search your configuration files and third-party installed libraries / packages, can you find a reference to a key definition that is linked to C-space and semantic-mrub-update or semantic-mrub-push? That key definition would be a likely suspect . . . –  lawlist Sep 21 '13 at 3:43

1 Answer 1

It is possible that there is a conflict with a shortcut defined within your desktop manager. The shortcut C-space is often mapped to switching keyboard input methods. You might want to change (or remove) that shortcut in the keyboard input method preferences. I had the same problem after switching to Ubuntu 14.04 and solved it this way.

share|improve this answer

Your Answer

 
discard

By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.