I keep getting
Unable to generate ICNS file for push notification package
errors emailed to me for the Safari push notifications I've set up on my site. They work without errors for my laptop and any other I've tried, and I've read and re-read the instructions of how to make a push package and mine looks valid...
Reading in Apple's docs, it says the reason for this error is
Your iconset may have malformed PNGs
but I've checked they are all just fine, no transparency, and again they work on my laptop... what the hell? Has anyone else out there experienced this or found a workaround? Anybody know of a push package testing tool?
In my case the error was caused by a wrong DPI of the images.
Solution: http://blog.pushpad.xyz/2016/11/unable-to-generate-icns-file-for-push-notification-package-solved/