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POWhy does the compiler say I haven't declared my variable?
 

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  1. POWhy does the compiler say I haven't declared my variable?
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    <p>I am getting an error in Xcode that says "whatEverVariable is undeclared" This is happening inside the .m file and also outside of the class itself. I have declared the variable inside the curly braces of the .h file and am using @property and @synthesize to access the variable. However I am getting that above error in the .m file sometimes and even in other classes where I have #imported the class that contains the variable. Am I missing something about Objective-C in general here or what? I guess what I am asking is why would things be undeclared if they are declared. </p> <p>Also I am getting "button may not respond to "setTitle" as an error as well has this been deprecated or something to "setTitle: forState:" because I am not wanting to use that. </p> <p>I would post an example but I really think I am missing some obvious thing here. Does anyone have any thoughts on what would cause the errors? Sorry to be so general, but I have to be a moron or something? </p> <p>This is saying "picturesInArray is undeclared"</p> <pre><code>#import &lt;Foundation/Foundation.h&gt; @interface Pictures : NSObject { NSMutableArray *picturesInArray; } @property (nonatomic, retain) NSMutableArray *picturesInArray; -(IBAction)pictureButtonPressed:(id)sender; @end #import "Pictures.h" @implementation Pictures @synthesize picturesInArray; -(IBAction)pictureButtonPressed:(id)sender { if (pictureIndex &gt;= [picturesInArray count] || pictureIndex &lt; 0) { pictureIndex = 0; [imageView setImage:[picturesInArray objectAtIndex:pictureIndex]]; [imageView setNeedsDisplay]; } } </code></pre>
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    1. USPeter Hosey
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    1. COI'm sure you are missing something obvious, but it's hard to tell exactly what mistake you're making without seeing any code.
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      1. USChuck
    2. COYou should also post a summary of the question in your title. Can you imagine logging into SO and the front page has 50 entries that all say "I have a question."?
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      1. USDewayne Christensen
    3. COYou must have missed @end at the end of the implementation block. You aren't showing the whole code, obviously. Could provide us the complete code for this class? Or, otherwise, strip the current sample of all the redundant variables and try to compile it only with picturesInArray defined.
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      1. USAlexei Sholik
 

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