Re: How to resolve bulk warning "Creating selector for nonexistent method ..."?
Re: How to resolve bulk warning "Creating selector for nonexistent method ..."?
- Subject: Re: How to resolve bulk warning "Creating selector for nonexistent method ..."?
- From: Steve Christensen <email@hidden>
- Date: Tue, 05 Jul 2011 12:17:08 -0700
For the nonexistent method warnings, your project- or target-level settings likely have "Undeclared Selector" checked in the GCC warnings section of the build settings.
For the multiple selectors warnings, look at the Strict Selector Matching item in the same section. It says this will pop up if you're trying to send the message to a variable of type id, vs to an explicit class type.
On Jul 3, 2011, at 6:16 PM, arri wrote:
> Hi Motti,
>
> I would be very interested to know how you resolved this issue, if at all.
>
> I'm suddenly facing the same issue, out of no-where. Instead of trying
> to find the source of the problem, I just reverted to the last known
> working version (svn), but the warnings persist.
> This surprises me a bit, because earlier today i had cleaned the
> project and made a release-build for distribution to the client, and
> this went fine.
>
> I'm sure i'm overlooking something very obvious and stupid. Does
> anyone have an idea what that could be?
>
> thanks,
> arri
>
>
> On Mon, Jan 25, 2010 at 12:04 PM, Motti Shneor <email@hidden> wrote:
>> Hi everyone.
>>
>> I'm building static library, whose outward API is plain "C", and whose implementation is Cocoa-based.
>>
>> It was building and working alright, until (yesterday) something changed, and any attempt to clean/build/rebuild it produces huge amount of compilation warnings, on EVERY Obj-C message.
>>
>> First, there's a bulk of warnings like this:
>>
>> /Volumes/Data/.../FileManager_GUI_Mac.mm:224: warning: creating selector for nonexistent method 'openPanel'
>> /Volumes/Data/.../FileManager_GUI_Mac.mm:196: warning: creating selector for nonexistent method 'release'
>> /Volumes/Data/.../FileManager_GUI_Mac.mm:193: warning: creating selector for nonexistent method 'code'
>> /Volumes/Data/.../FileManager_GUI_Mac.mm:190: warning: creating selector for nonexistent method 'savePanel'
>> /Volumes/Data/.../FileManager_GUI_Mac.mm:190: warning: creating selector for nonexistent method 'alloc'
>> /Volumes/Data/.../FileManager_GUI_Mac.mm:171: warning: creating selector for nonexistent method 'stringWithFormat:'
>> /Volumes/Data/.../FileManager_GUI_Mac.mm:160: warning: creating selector for nonexistent method 'getCString:maxLength:encoding:'
>>
>> Then another bulk of warnings, complaining about DOUBLE definitions for Cocoa methods!!!!
>>
>> /Volumes/Data/.../FileManager_GUI_Mac.mm:244:0
>> /Volumes/Data/.../FileManager_GUI_Mac.mm:244: warning: multiple selectors named '+isVertical' found
>> /Developer/SDKs/MacOSX10.5.sdk/System/Library/Frameworks/AppKit.framework/Headers/NSSplitView.h:30:0 /Developer/SDKs/MacOSX10.5.sdk/System/Library/Frameworks/AppKit.framework/Headers/NSSplitView.h:30: warning: found '-(BOOL)isVertical'
>> /Developer/SDKs/MacOSX10.5.sdk/System/Library/Frameworks/AppKit.framework/Headers/NSSliderCell.h:59:0 /Developer/SDKs/MacOSX10.5.sdk/System/Library/Frameworks/AppKit.framework/Headers/NSSliderCell.h:59: warning: also found '-(NSInteger)isVertical'
>>
>>
>>
>> Notes:
>> The project is building Intel-only Universal (32/64bit, architectures i386 and x86_64
>> I only #import <Cocoa/Cocoa.h> once, in a single source file (an interface header file).
>> I added (linked) the Cocoa Framework once in the project, referencing the "Current SDK".
>> The project DOES compile, and even works.
>> If i turn on the "Build Active Architecture Only" build option for the project (ONLY_ACTIVE_ARCH = YES) then I only get the warnings when I compile 32bit. 64bit compilation is free of warnings.
>>
>>
>> These warnings worry me, as I might be using a wrong framework, and the code may break on a user machine.
>>
>> Any idea will be greatly appreciated.
>>
>>
>> Motti Shneor
>> ------------------------------------------
>> Senior Software Engineer
>> Waves Audio ltd.
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