问题
I'm using a lot of "custom identifiers" for Toolbar Items, which is fine in Xcode4, but it gives me a bunch of warnings when I build the project:
Attribute Unavailable Custom Identifiers in Interface Builder versions prior to 3.2
Is there a way to ignore these warnings in Xcode4? It's pretty messy when I search for "real" warnings and errors.
回答1:
Click on your xib file. On the properties you will see the following section:
.
Where it says "Development" change that to Interface Builder 3.2 and you should no longer receive those warnings.
UPDATE for current iOS Xcode users: In iOS 4.3 - IB is built into the IDE, and on the right after selecting the xib file there will be some icons, the first icon is called "File Inspector" (looks like a page with a fold in it) that is where the section resides (see below).
回答2:
I am running Xcode 4.2 build 4C199.
- Click on xib file,
- on the right, click on Utilies View
Click File Inspector. As tony.stack mentioned look under "interface BuilderDocument"
set Deployment = "Project SDK version"
set Development = " xcode 4.2"Even if you are running xcode 4.2, the Development is set to default 4.1, So you get that warning.
回答3:
Have you tried looking at the "Document Info" window in Interface Builder? You can set supported versions there.
来源：https://stackoverflow.com/questions/5992079/ignore-attribute-unavailable-warning-in-xcode4