If you find yourself in the same situation. Simply reboot your computer.
I actually spent a good hour investigating this and sometimes, even the best of us forget to try a reboot first.
Question
I've installed Xcode 5 (currently in pre-release). Installing Xcode 5 does not overwrite Xcode 4. What's happening now is that when I open up my old projects in Xcode 4, I can no longer create new objects on the Storyboard by dragging and dropping GUI elements.
Has anyone experienced this?
** EDIT **
If you find yourself in the same situation. Simply reboot your computer.
I actually spent a good hour investigating this and sometimes, we're too stubborn to think that a simple reboot could fix the issue.
Solution 2
If you find yourself in the same situation. Simply reboot your computer.
I actually spent a good hour investigating this and sometimes, even the best of us forget to try a reboot first.
OTHER TIPS
If you remember back to the first time you opened your Xcode 4 storyboard in Xcode 5, you were prompted with the following message.
The content of the above screenshot should answer your question.