This is because Xcode 12 expects to use imports with <> instead of "" on umbrella headers. Thus this is a cocoapods issue, you can find more info here - https://github.com/CocoaPods/CocoaPods/issues/9902.
The fix I used was using the latest version of cocoapods which has this fix, as for now 1.10.0.rc.1.
Topic:
Developer Tools & Services
SubTopic:
Xcode
Tags: