App Store upload image Display error: Failed to create screen shot

After adding an app to itunes Connect, when adding a screenshot, uploading the photo to the required size was successful, but prompted "failed to create screenshots for 4-inch IPhone5 and IPod Touch (5th Generation) screen shot of Retina display. ］

(Image from Network)

In fact, the save failed, the picture is not qualified. But exclude 1. size 2. Picture Format Jpeg/png

The format I uploaded is jpeg, pixel 72dpi.

Solution:

1. Online search solution is the size of the correct, but the pixel 72dpi modified to 144dpi and then upload it; ---I tried or did not solve the same;

2. Upload a different computer. ---OK, you can believe it! I don't know why, maybe Apple's big aunt

Essay sharing, because I can only find an answer to the question on the Internet. http://bbs.csdn.net/topics/391020180

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App Store upload image Display error: Failed to create screen shot