I want to upload build with Custom keyboard extension on Itunes Connect But when I am going to upload it on Itunes Connect through Application loader its show me following error
My problem was, that I had my iPhone 6 connected to Xcode so all swift frameworks did only build the arm64 version.
I disconnected my iPhone 6 and selected iOS Device as Destination.
After that the error disappeared.
Another thing you could to is to check if the created Archive is really for all required architectures.
You can check the the binary files in your Archive with the commandline command:
lipo -info YourBinary
The output should look something like that:
Architectures in the fat file: YourBinary are: armv7 arm64