Xcode 4.5 - CopyPNGFile persists. Need new ideas

Question

I'm making an iPad app and it runs on the simulator, but fails when i try building it for the device.

the error is below:

These are the things i've tried to rectify this issue:

• went through every PNG file with Photoshop and saved them again w/o the interlace
• Deleted all the images in my Resources folder and added them again by dragging/dropping the images again
• Deleted ALL PNG images (left the JPGs) and it works...when i add one PNG, Xcode throws a hissy fit.
• Deleted the derivedData in my ~Library/Developer/Xcode
• quit Xcode and tried again
• restarted my computer and tried again.

i tried checking about the paths, but i'm not sure. Any ideas would be great please.

Addendum i also want to add that Xcode is throwing errors against its own [email protected] and Default.png!

Answer 1

In my case the error is resolved by going to

Build Phases -> Copy Bundle Resources

and removed all the duplicated entries of lunch images DefaultXX.png

Answer 2

You have to save your PNG files as NOT INTERLACED. For example, by using Photoshop, go to menu File->Save For Web and Devices. Unchecked the box of 'Interlaced' and save the file. Usually interlaced box is unchecked already. Hope that helps