I\'m not sure what I did to get this error in Xcode 5:
\"None of the input catalogs contained a matching app icon set named \"AppIcon\"\".
My app was build
Had the same problem and tried several solutions but in the end it was a bad image file as well. I finally identified the troublemaker by deleting all the images and then re-adding them one by one until it wouldn't compile anymore. When I tried to open that file in Photoshop it gave me the following error message:
"Could not complete your request because the file-format module cannot parse the file."
I had imported all the images from a folder into images.xcassets at once then started getting build failed.I tried deleting one image set at a time and build (⌘b) until I get the project build properly and understood one image set causing issue. Then continued deleting one image from that image set and build (⌘b) until I get build succeeded and found the culprit!. Because a different format file had been renamed to PNG.
Simple Solution:
I was stuck in this issue and after reading "@Michael Enriquez" post, I realized that this problem occurred due to wrong formatted image resource, I was worried how to check which file I saved incorrectly if I have so many image resources. So I just used a software named ImageOptim from AppStore which I normally use for reducing image sizes, so I dragged all the images to ImageOptim and I realized the wrong file, ImageOptim showed a cross sign on the wrong formatted image, then I changed that specific image to png and my problem is solved. I hope this solution will help you. Have a look at the snapshot below:
for my case i faced same problem ,when I updated Xcode to 9.2 from 8.3 ,
i just upgrade the Deployment target in both TARGETS and PROJECT section to minimum iOS 11.0
from Xcode side panel , and solved
I also have the same issue, in my experience it caused by :
note : for wrong size you need to place your art board in a clear coordinate, for example 1000 px, 200 px, i get it right by using top left anchor.
For me the quickest fix was to (first copy and make sure you have a backup of images) delete all files within Images.xcassets. Then go to "Editor" on top menu and click "New Image Set" all the way to "New OS X Icon" below that just to be safe. After this copy n paste back the images with the empty "New etc." still in the folder.