Flutter IOS app build error after added firebase crashlytics

Warning: Building for device with codesigning disabled. You will have to manually codesign before deploying to device. Building for device (ios-release)... Running pod install...
124.8s (!) Running Xcode build...
Xcode build done. com.example.app 11.7s Failed to build iOS app Error output from Xcode build: ↳ ** BUILD FAILED ** Xcode's output: ↳ note: Using new build system note: Building targets in parallel note: Planning build note: Constructing build description error: Unable to load contents of file list: '/Users/builder/clone/build/ios/Release-iphoneos/Runner.app/Info.plist' (in target 'Runner' from project 'Runner') Encountered error while building for device. Build failed :| Failed to build for iOS