问题
I am new to Xcode, working through Swift, so I'm not sure if what I am decribing is actually a bug.
When using interface builder and the assistant editor, I can create lables, buttons etc, and create Outlets and Action in the code with a control-drag.
So long as I am perfect, no problem. But I seem to run into problems if, for example, I make a mispelling of the object name. Or, I choose outlet instead of action. I can't seem to find a way to make a correction that does't seem to totally screw up the IDE. Even if I delete the object in the IB and the code, it seems to leave problems behind when I build. Or, if I try to delete the line in code and re-drag it, a new line of code is created, but the object seems to now reference the new name, and the old, now missing name.
Again, I am working with Swift --- Since I don't use/know Objective-C I don't know if there is a similar behavior using that language.
Appreciate any pointers. (Other than don't use the Interface builder / storyboards / Swift.)
回答1:
Use the Connections inspector to break the connection. Then you can modify/delete the object and/or the code without having to worry.

回答2:
The accepted answer is fine, but there are a few ways to do the same thing.
Method One
Right click the view in the storyboard and then click the little x by the referencing outlet.
Method Two
Right click the view name in the Document Outline. Then click the little x by the referencing outlet.
Method Three
Select the view on the storyboard and then click the Connections Inspector. Then you can click the little x to remove an outlet reference.
Extra References in Code
If you are getting outlet connections in code that you didn't add yourself see this answer.
回答3:
You can find unused IBOutlets in the file in which they're declared by looking in the "gutter" of the source editor for an "unfilled hole".
来源:https://stackoverflow.com/questions/24523086/xcode-interface-builder-correct-way-to-delete-rename-miswired-iboutlets-ib