Builds on Xcode 12 and above fail due to this library.
The issues seems to be related to this. To fix it we would need to make changes as mentioned here to the podspec,
- s.dependency 'React'
+ s.dependency 'React-Core'
https://github.com/wonday/react-native-pdf/pull/509/files#diff-5faac750e13626b2dc95e4621e009a7130bc2919068cd64ae68beb55e0899344L17-R17
