问题
iTunes Connect has been updated in the last few days, now when I try to update App Icon (not screenshot) I get the following error:"Images can't contain alpha channels or transparencies."
I had no such trouble in the past, has Apple changed its guideline on app icon or is this perhaps a bug in the new site? If the guideline has been changed, is the solution to simply remove any transparency?
回答1:
Your icon should be without transparency(Alpha Channel) and of size 1024 X 1024. It could be either JPEG, JPG or PNG type. Refer apple doc here
I have also attached a screenshot for which highlights the size & other specs for icon.
回答2:
Here is the cool stuff which will solve this problem.
Step 1 - Open your icon image in Preview Step 2 - Go to File -> Export, You will get a drop-down as shown in the image below. Step 3 - Uncheck the Alpha and Save
Then use the exported icon Image. Now it will work.
回答3:
Remove any transparency from your app icon and try to upload app icon after that... See here
回答4:
- Open your image(1024x1024) with Gimp and go to File --> Export
- Select File Type as JPEG image and click Export button on the right bottom corner.
来源：https://stackoverflow.com/questions/25758384/cannot-set-app-icon-with-transparency-to-itunes-connect