Build fail when using SDWebImage

Question

I am trying to use the classes of SDWebImage in my project.

I've added the classes to my project and when I try to build it I get 7 errors:

    Undefined symbols for architecture i386:
  "_OBJC_CLASS_$_MKAnnotationView", referenced from:
      l_OBJC_$_CATEGORY_MKAnnotationView_$_WebCache in MKAnnotationView+WebCache.o
  "_CGImageSourceCreateIncremental", referenced from:
      -[SDWebImageDownloader connection:didReceiveData:] in SDWebImageDownloader.o
  "_CGImageSourceUpdateData", referenced from:
      -[SDWebImageDownloader connection:didReceiveData:] in SDWebImageDownloader.o
  "_CGImageSourceCopyPropertiesAtIndex", referenced from:
      -[SDWebImageDownloader connection:didReceiveData:] in SDWebImageDownloader.o
  "_CGImageSourceCreateImageAtIndex", referenced from:
      -[SDWebImageDownloader connection:didReceiveData:] in SDWebImageDownloader.o
  "_kCGImagePropertyPixelHeight", referenced from:
      -[SDWebImageDownloader connection:didReceiveData:] in SDWebImageDownloader.o
  "_kCGImagePropertyPixelWidth", referenced from:
      -[SDWebImageDownloader connection:didReceiveData:] in SDWebImageDownloader.o
ld: symbol(s) not found for architecture i386
clang: error: linker command failed with exit code 1 (use -v to see invocation)

I am new to XCode and Objective-c so I got no idea what this errors mean.

Anyone?

Thank you.

possible duplicate of [symbol(s) not found for architecture i386 in SDWebImageDownloader](http://stackoverflow.com/questions/11900848/symbols-not-found-for-architecture-i386-in-sdwebimagedownloader) — vikingosegundo, Jan 20 '13 at 18:19

mattjgalloway · Accepted Answer · 2012-09-06T20:49:27.887

53

Looks like you need to add MapKit and ImageIO to the project.

To do that:

Click on the project at the top of the project navigator in Xcode.
Select the 'Build Phases' tab.
Open up the 'Link Binary with Libraries' box.
Click the '+'.
App MapKit and ImageIO frameworks.

edited Sep 06 '12 at 20:49

answered Sep 06 '12 at 18:26

mattjgalloway

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I did this and I got 6 errors now: all the ones I've listed minus the first one(that envolves _OBJC_CLASS_$_MKAnnotationView). – gabsferreira Sep 06 '12 at 20:23
CoreGraphics as well then? That should already be in there though in an iOS Xcode project template. – mattjgalloway Sep 06 '12 at 20:48
ImageIO solved it. What do you do to know what framework is missing? XCode error messages aren't very clear to me. – gabsferreira Sep 06 '12 at 21:50
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I just know that those symbols are in those frameworks. The MapKit one is easy since the class starts with `MK`. The ImageIO ones are harder and that's why I got them wrong at first and thought it might be QuartzCore. I just checked the documentation and found that those functions are in ImageIO. – mattjgalloway Sep 07 '12 at 11:31
You are awesome! I had the same error and turns out the Mapkit framework was needed. Unless I overlooked it I don't recall seeing this in the instructions. Much appreciated, thanks. :-) – Shannon Cole Jul 10 '13 at 02:22

Build fail when using SDWebImage

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