Failed to verify code signature of /var/installd/Library/Caches/com.apple.mobile.installd.staging/temp.kigJRA/extracted/Anfi SUMA Generators.app :

It seems like you're encountering an issue related to code signing and app distribution. Here are some relevant sessions from WWDC that might help you understand and resolve the issue:

1. Xcode essentials: This session covers the process of archiving and distributing your app, including how to handle TestFlight and App Store Connect. It also discusses how to ensure your app is properly signed and ready for distribution.
2. Explore App Store server APIs for In-App Purchase: This session explains the importance of validating signatures and ensuring that your server is the source of truth for transactions. It also covers how to create promotional offer signatures, which might be relevant if your issue is related to in-app purchases.

For more detailed debugging techniques, you might find the session Run, Break, Inspect: Explore effective debugging in LLDB useful. This session provides insights into using LLDB for debugging, which could help you identify and resolve issues in your app's code.

If you need specific guidance on creating and validating signatures, the segment from Explore App Store server APIs for In-App Purchase provides a step-by-step explanation of creating a promotional offer signature using the App Store server library.

Feel free to explore these sessions for more detailed information and troubleshooting steps.