iPhone xCode changes ignored

Question

I've been following a tutorial using Cocos2d and I've been learning a lot.

I got to the part inserting a "Game over" bit.

Previously it would just NSLog "You lose".

I went over to a different project and started something else. Then I came back and removed the NSLog line and changed it for the GameOverScene (replaceScene).

However, it still logs out "You lose" as though I haven't made the changes.

I've even put the NSLog back with a different text but still "You lose".

I've restarted xCode with no effect and now I'm completely stuck. I can't even get the app to open in the different orientation.

It's as though it isn't looking at my changes.

Any ideas?