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POCalling method on category included from iPhone static library causes NSInvalidArgumentException
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  1. POCalling method on category included from iPhone static library causes NSInvalidArgumentException
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    copied!<p>I have created a static library to house some of my code like categories.</p> <p>I have a category for UIViews in "UIView-Extensions.h" named Extensions.</p> <p>In this category I have a method called:</p> <pre><code>- (void)fadeOutWithDelay:(CGFloat)delay duration:(CGFloat)duration; </code></pre> <p>Calling this method works fine on the simulator on Debug configuration. </p> <p>However, if try to run the app on the device I get a NSInvalidArgumentException:</p> <pre><code>[UIView fadeOutWithDelay:duration:]: unrecognized selector sent to instance 0x1912b0 *** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '*** -[UIView fadeOutWithDelay:duration:]: unrecognized selector sent to instance 0x1912b0 </code></pre> <p>It seems for some reason UIView-Extensions.h is not being included in the device builds.</p> <hr> <p><strong>What I have checked/tried</strong></p> <p>I did try to include another category for NSString, and had the same issue.</p> <p>Other files, like whole classes and functions work fine. It is an issue that <strong><em>only</em></strong> happens with categories.</p> <p>I did a clean all targets, which did not fix the problem.</p> <p>I checked the static library project, the categories are included in the target's "copy headers" and "compile sources" groups.</p> <p>The static library is included in the main projects "link binary with library" group. </p> <p>Another project I have added the static library to works just fine.</p> <p>I deleted and re-added the static library with no luck</p> <p>-ObjC linker flag is set</p> <p>Any ideas?</p> <hr> <p><strong>nm output</strong></p> <pre><code>libFJSCodeDebug.a(UIView-Extensions.o): 000004d4 t -[UIView(Extensions) changeColor:withDelay:duration:] 00000000 t -[UIView(Extensions) fadeInWithDelay:duration:] 000000dc t -[UIView(Extensions) fadeOutWithDelay:duration:] 00000abc t -[UIView(Extensions) firstResponder] 000006b0 t -[UIView(Extensions) hasSubviewOfClass:] 00000870 t -[UIView(Extensions) hasSubviewOfClass:thatContainsPoint:] 000005cc t -[UIView(Extensions) rotate:] 000002d8 t -[UIView(Extensions) shrinkToSize:withDelay:duration:] 000001b8 t -[UIView(Extensions) translateToFrame:delay:duration:] U _CGAffineTransformRotate 000004a8 t _CGPointMake U _CGRectContainsPoint U _NSLog U _OBJC_CLASS_$_UIColor U _OBJC_CLASS_$_UIView U ___CFConstantStringClassReference U ___addsf3vfp U ___divdf3vfp U ___divsf3vfp U ___extendsfdf2vfp U ___muldf3vfp U ___truncdfsf2vfp U _objc_enumerationMutation U _objc_msgSend U _objc_msgSend_stret U dyld_stub_binding_helper </code></pre>
 

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