1. Check all those images are .PNG
2. Put those images at root level of your project
3. Add another splash.png with name "Default-568h@2x.png" for iPhone 5. Its size should be 640 × 1136 pixel.

So like @Aditya Deshmane I also use .xib file as my "Launch Image".

Adding both Default-568.png and Default-568@2x.png to my root directory didn't solve my issue.

I had to add the UILaunchImages key to my Info.plist:

<key>UILaunchImages</key>
<array><dict><key>UILaunchImageName</key><string>Default-568</string><key>UILaunchImageSize</key><string>{320, 568}</string></dict>
</array>

As described here: iOS Key UILaunchImages

Question is already answered and works as well, just adding one more answer as i got similar error in different scenario.

In my case i was using LaunchScreen.xib which is alternative to using splash images.

https://developer.apple.com/library/ios/documentation/UserExperience/Conceptual/MobileHIG/LaunchImages.html

As stated in above link "In iOS 8 and later, you can create a XIB or storyboard file instead of a static launch image."

But even after using XIB i got this error.

To solve this i took screenshot of splash from 4 inch device running iOS 8, which was 640 × 1136 pixel. Renamed it to "Default-568h@2x.png" added it to top level in project bundle.

Reason behind this error could be :

When apple transitioned from 3.5 inch devices to 4.0 devices, this image was compulsory otherwise app used to run in letterbox mode ( On 4 inch devices you will see black bars on top and bottom of application ).So when i tried to run my application on 4 inch device/simulator running iOS 7.1 it was indeed running into letterbox mode ( when i only used .xib based splash ). The moment i added "Default-568h@2x.png" letterbox mode gone plus apple approved app.

In my case, I don't use LaunchScreen file but had a value in there. Deleting it like this worked:

I also had a hard time to figure it out. It happened to me after I upgraded XCode into version 7 (iOS 9). Somehow it unassigned launch images and changed Launch Image options with unchecked iPhone Portrait for iOS 6.0 and Prior from the right pane.

After I checked iPhone Portrait it shows assignable iPhone Portrait iOS 5, 6. I just drag & drop images into the proper holders.

Then I archived with this assignment and uploaded binary successfully into app store. I hope this would help.

On Xcode 7 with iOS 9 SDK, if you set 'deployment target' to 8.0 or above, and don't have a asset catalog selected for 'launch images source', then it will work.

This solution is only for Phonegap + DevExtreme + Visual Studio (Windows):

I struggled for 3 consecutive days to solve this issue. Hope somebody else not have to.

Please follow the below mentioned Steps to resolve the issue:

1. Create a New Solution.
2. Delete all the Files and Folders except the "congif.xml" and Solution File.
3. Copy your existing Files and Folders to the New Solution. DONT COPY THE IMAGES which includes the ICONS AND SPLASH/LAUNCH IMAGES.
4. In the New Solution, add all the Icons and Splash images from fresh.

Build this Solution with proper Distribution Certificate and submit the IPA to App Store. It must solve the "90096" Error.

Thanks.

Try to clear "Launch screen file" at "App icons and Launch images"

Remove the laucnh Screen File: Remove name.

From iOS9, you should add launch images to your project root, not Images.xcassets folder. And set your launch images in info.plist with key UILaunchImages, for my example:

<key>UILaunchImages</key>
<array><dict><key>UILaunchImageMinimumOSVersion</key><string>7.1</string><key>UILaunchImageName</key><string>iPhone5Portrait</string></dict><dict><key>UILaunchImageMinimumOSVersion</key><string>7.1</string><key>UILaunchImageName</key><string>iPhone6Portrait</string></dict>
</array>

Using XCODE 7.0.1 with an app that did not have the launch images setup. Tried to use the interface to "create" the locations in the .xcassets file, but only created a set with a bad name.

Had to go back to XCODE 6.4 to create the proper locations / set name "LaunchImage" and load the files.

Then back to XCODE 7.0.1 and all seems good.

Looks like there is a bug introduced in XCODE 7.x that will not create the launch image .xcassets correctly.

I've encountered such problem in my project.1. The problem was using LaunchScreen.Xib without removing the LaunchImages in Images.assets.After delete LaunchImages from Images.assets, uploading is successfully completed.2. Please set Deployment Target into over 8.0If you want to deploy 7.0 too, you have to add launchimages.