I've been experiencing this issue for two days, since the new iTunes Connect became avaiable.
When adding a new screenshot, at first, I was receiving the error:
Your app information could not be saved. Try again. If the problem persists, contact us.
Inspecting the element in browser, in the console i could see that they got a server error:
We've got a server error... 500
But yesterday, the error changed. The server was responding SUCCESS, but a new error appeared when trying to upload any screenshot:
Failed to create a screenshot for Screenshots for 4-inch iPhone 5 and iPod touch (5th generation) Retina display (error for 4-inch upload)
I'm sure my image types/sizes are ok.
Today, I'm back to the server error...
Apple responded my thread with them today, but to ask for additional information such as screenshots and the source code of the page.
Anyone else having this issue? Anyone got the answers from Apple?
Thx
SS of inspecting element in Safari:
I met the same problem. The solution for me is just avoiding to use the default name (i.e. iOS Simulator Screen Shot ********), simply rename the screenshots as "1.png, 2.png..." and it should be OK now.
Found the solution, you have to rename your screenshot to remove any accent in it. Then the upload will work.
I had an error where none of the uploaded images in iTunes Connect would generate (or preview).
Turned out to be a browser incompatibility. Switched to Safari and the uploaded worked just fine.
I posted this answer here, but I was able to fix my problems by doing the following:
I think I've found a possible fix, but I'm not totally sure. I updated my computer from Mavericks to the Yosemite beta, went into Safari menu -> Clear History and Website data. Then I restarted my computer. After that, I was able to reject my app and submit screenshots.
Of course, it could just be that Apple has updated iTunes Connect to work now, and the timing was just coincidental, so maybe try without updating to Yosemite first if you can avoid it.
Let me know if that works for you :)
After facing similar issue 2 days continuously i found solution, Following things you should check step by step before uploading screenshots to iTunes.
1) iTunes Connect Screenshots Sizes for all iPhones (As per Apple Documentation) -
72 dpi, RGB, flattened, no transparency High-quality JPEG or PNG image file format
iPhone 3+4 (3.5 Inch)
Any of the following sizes:
640 x 920 pixels for hi-res portrait (without status bar) minimum
640 x 960 pixels for hi-res portrait (full screen) maximum
960 x 600 pixels for hi-res landscape (without status bar) minimum
960 x 640 pixels for hi-res landscape (full screen) maximum
iPhone 5 (4 Inch)
Any of the following sizes
640 x 1096 pixels for portrait (without status bar) minimum
640 x 1136 pixels for portrait (full screen) maximum
1136 x 600 pixels for landscape (without status bar) minimum
1136 x 640 pixels for landscape (full screen) minimum
iPhone 6 (4.7 Inch)
750 x 1334 pixels for hi-res portrait
1334 x 750 pixels for hi-res landscape
iPhone 6 Plus (5.5 Inch)
1242 x 2208 pixels for hi-res portrait
2208 x 1242 pixels for hi-res landscape
2)Avoid default naming convention of simulator.
- Keep different names for each different set of images.
- say for 4 inch you have 4 different images, keep each image name different.
- Again it should be different for 4.7 inch so on.
3) Either safari or chrome whatever it may be Clear cookies, history and website data before uploading images. (I stuck lot of time in this because of browser history and and cookies)
I had the same issue today. Tried Chrome instead of Safari and it worked fine.
I´ve solved it by using Safari.
Had this problem, also found this question, using chrome on windows, used "clear browser history" on the last hour and this fixed the problem. Seems to be a bad cookie, which means clearing cookies or switching browsers will solve the problems very similarly.
It seems the issue was we had multiple users with the same app record open on iTunes Connect at the same time. But fist I thought solved by changing safari to chrome... but after few minutes it starts showing same warning again...
I solved it by getting everyone to log out while I was logged in and uploaded the screenshots :)
来源：https://stackoverflow.com/questions/25771894/error-uploading-screenshots-to-new-itunes-connect