Multiple line comment in Xcode 8

Question

I just upgraded to Xcode GM 8.0 and noticed ⌘ + / is not commenting out selected lines. Is there another command to comment out multiple lines in Xcode 8?

Answer 1

Sometimes this happens to me (even with Xcode7, and just confirmed still with Xcode8) after opening the documentation window (Help -> Documentation and API Reference or cmd+shift+0). Here are a few things that have fixed it when it was happening to me:

• Restart Xcode (realize you've already tried this, but including it for posterity)
• Close the documentation window
• With only 1 Xcode window open, hit cmd+~ a couple times
• Wish really really hard