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 according to the required size was successful, but at the time of saving it prompted "failed to create a screen shot of screenshots for 4-inch IPhone5 and IPod Touch (5th Generation) 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.

How to resolve:

1. Online Search to solve the problem is that although the size of the right, but the pixel 72dpi changed to 144dpi and then upload it can be; ---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, I can only find an answer to this question on the Internet. http://bbs.csdn.net/topics/391020180

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