Xcode Objective-C all properties displaying a warning

Question

This is really strange. All of the sudden my xcode project is showing warnings for almost all properties I have declared.

I'm building an app for Mac OS with Xcode 5.1.1.

Most properties I'm not specifying any attributes as I'm aware the default is a strong reference. But now all of the sudden I get warnings for everything.

What would I have done to trigger this? Up until a few minutes ago these warnings would never show up. I don't want to have to declare the attributes for every property - only the ones I don't want to be strong references.

It doesn't give me warnings for properties that are implicitly assign or atomic.

I've attached a screenshot.

Any ideas? Is there a build setting that accidentally got turned on?

Could there have been something in a single file that started triggering all these warnings? Like some kind of circular reference?

Edit: This is an ARC project.

Edit: I found the source of the problem: I have a non-arc file (-fno-objc-arc) including an arc file. Anyone know how to handle this properly?

enter image description here

this hasn't happened to me before. I'm looking at a different project that I built and it doesn't give me all these warnings. — gngrwzrd, Jul 05 '14 at 22:56

score 0 · Answer 1 · edited May 23 '17 at 12:07

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You have to give the property either retain, copy, weak, or strong, if it's an Objective C object and you're not using ARC. See this question for more info: Objective C - Assign, Copy, Retain

edited May 23 '17 at 12:07

Community

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answered Jul 05 '14 at 22:52

Milo

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I'm using arc though. – gngrwzrd Jul 05 '14 at 22:55
@gngrwzrd give it strong then – Milo Jul 05 '14 at 22:59
@Milo but `strong` is the default for an object property under ARC. – rmaddy Jul 05 '14 at 23:00

score 0 · Answer 2 · answered Jul 05 '14 at 23:30

In your build settings, check the Other Warning Flags option and see if something is in there. Check the other flags options as well just in case.

You may have something such as -Weverything, or -Wobjc-property-no-attribute that is turning on additional warnings that you don't have on by default, or in your other project.

score 0 · Answer 3 · answered Jul 06 '14 at 00:16

I found that I had included an ARC file in a non-ARC file (-fno-objc-arc). The file that was included was the AppDelegate.h file, which included a bunch of other stuff. So when the non-ARC file was being compiled, it included all these ARC files which then triggered warnings.

Xcode Objective-C all properties displaying a warning

3 Answers3