Xcode Command-Slash Shortcut to Comment Only Works Sometimes

xcode comments keyboard-shortcuts
Stonz2 picture Stonz2 · Oct 29, 2014 · Viewed 31.9k times · Source

I'm having issues with Xcode being quite unreliable when using the keyboard shortcut to comment or uncomment code ⌘+/. I can't seem to find a real pattern as to when it breaks, but it usually happens after building and running my code on the simulator. It will not work again until I edit something in any one of my code files. Even if I switch to another file in the main view, commenting via shortcut does not work. Other keyboard shortcuts, such as indenting ⌘+[ continue to work just fine.

Do other people have this issue, and if so, have you found a solution? I know it seems like a small complaint, but when running and then quickly trying to comment out a block of code to check the effect, it's a bit of an inconvenience.

I am using Xcode 6.1 (6A1052d) on OXS Yosemite 10.10 (14A389) and developing in Objective-C for iOS if that matters.

Answer

CryingHippo picture CryingHippo · Aug 30, 2016

For an Xcode 8, solution is 

sudo /usr/libexec/xpccachectl

and restart your computer.

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