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I have no idea how to download a Xcode project of a specific tutorial against whole repository?

Hi,

pretty good articles! Very short and useful overview, just to the point.

However the linked images in the QR Code article aren't working. The file extensions in the markdown are *.png and the actual files have *.PNG.

I have followed this tutorial: https://github.com/ShinobiControls/iOS7-day-by-day/blob/master/15-core-image-filters/15-core-image-filters.md in the section of QR CODE Generation.

After I clicked run, the program open and I can see the welcome image of an app and then it stop there.

on the IDE coding section, it direct me to the main.m and highlight on a line of code which is " return UIApplicationMain(argc, argv, nil, NSStringFromClass([AppDelegate class]));" and says Thread 1:signal SIGABRT

on the LOG section it says this "2014-11-03 11:30:01.172 qrcode[957:24207] *** Terminating app due to uncaught exception 'NSUnknownKeyException', reason: '[<ViewController 0x7fc652cb9cc0> setValue:forUndefinedKey:]: this class is not key value coding-compliant for the key outputImageView.'"

how can I fix this please help me. t-t

I just started using this guide on how to generate QR codes for my app and it mostly works, but I notice that the -createNonInterpolatedUIImageFromCIImage method posted here actually flips the given image vertically. I verified this by comparing it to UIImage +imageWithCIImage, which gave me an interpolated image that was the right orientation. Adding a line
scaledImage = [UIImage imageWithCGImage:scaledImage.CGImage scale:1.0 orientation:UIImageOrientationDownMirrored];
into the end of the method flips it back to vertical.