Console missing in Xcode 4

My log window is missing 开发者_高级运维in Xcode 4. I don't know what I did, but now there is just a blank gray box where it should be at the bottom the Xcode window.

How can I get it back?

This button should do the trick:

... which, on my window, can be found here:

XCode must have been in a funky state, closing and reopening fixed it.