Why does command 'react-native run-ios' build fail after upgrade to 0.63.3?

I just updated to RN v0.63.3. I was having issues with react-native run-ios on previous react-native version after changing the name of the app, and the project/schemes had different names, never got that issue solved, everyone said to just upgrade.

now on v0.63.3 there is still an issue with failing build after react-native run-ios. this time the error is:

** BUILD FAILED **

The following build commands failed: CompileC /Users/vorousjames/Library/Developer/Xcode/DerivedData/<OLD_NAME>-gdmnlxiprekjqhfiueouiidqhqnl/Build/Intermediates.noindex/<NEW_NAME>.build/Debug-iphonesimulator/<NEW_NAME>.build/Objects-normal/x86_64/AppDelegate.o /Users/Desktop/Development/App/iOS/<OLD_NAME>/AppDelegate.m normal x86_64 objective-c com.apple.compilers.llvm.clang.1_0.compiler (1 failure)

There is NO issue building/running from inside Xcode. ONLY with react-native run-ios

EDIT: I thought maybe there was an issue with the fact that I had the cli globally installed since I was just calling react-native run-ios. I believe that uses the global installation. so since its outdated, I uninstalled globally and tried to use the community package with npx react-native run-ios. now its giving another comileC error, but different.

** BUILD FAILED **

The following build commands failed: CompileC /Users/Library/Developer/Xcode/DerivedData/App-gdmnlxiprekjqhfiueouiidqhqnl/Build/Intermediates.noindex/Pods.build/Debug-iphonesimulator/RNFirebase.build/Objects-normal/x86_64/RNFirebaseMessaging.o /Users/Desktop/Development/App/node_modules/react-native-firebase/ios/RNFirebase/messaging/RNFirebaseMessaging.m normal x86_64 objective-c com.apple.compilers.llvm.clang.1_0.compiler CompileC /Users/Library/Developer/Xcode/DerivedData/App-gdmnlxiprekjqhfiueouiidqhqnl/Build/Intermediates.noindex/Pods.build/Debug-iphonesimulator/RNFirebase.build/Objects-normal/x86_64/RNFirebaseFirestore.o /Users/Desktop/Development/App/node_modules/react-native-firebase/ios/RNFirebase/firestore/RNFirebaseFirestore.m normal x86_64 objective-c com.apple.compilers.llvm.clang.1_0.compiler (2 failures)

This is completely killing my ability to iterate quickly, any advice is welcomed

react-native: 0.63.3 react-native-cli (global): 2.0.1 react-native-community/cli: ^4.8.0 Xcode: 12.0.1 iOS: 14.0.1

from Why does command 'react-native run-ios' build fail after upgrade to 0.63.3?