I am getting this error when build release in iOS Flutter

Question

I am getting this error when building/archiving this project in Xcode. (Flutter)

ld: warning: directory not found for option '-L/Users/gurleensethi/FlutterProjects/camera_ml/build/ios/Debug-iphoneos/FirebaseCore'
ld: warning: directory not found for option '-L/Users/gurleensethi/FlutterProjects/camera_ml/build/ios/Debug-iphoneos/GTMSessionFetcher'
ld: warning: directory not found for option '-L/Users/gurleensethi/FlutterProjects/camera_ml/build/ios/Debug-iphoneos/GoogleAPIClientForREST'
ld: warning: directory not found for option '-L/Users/gurleensethi/FlutterProjects/camera_ml/build/ios/Debug-iphoneos/GoogleToolboxForMac'
ld: warning: directory not found for option '-L/Users/gurleensethi/FlutterProjects/camera_ml/build/ios/Debug-iphoneos/Protobuf'
ld: warning: directory not found for option '-L/Users/gurleensethi/FlutterProjects/camera_ml/build/ios/Debug-iphoneos/firebase_ml_vision'
ld: warning: directory not found for option '-L/Users/gurleensethi/FlutterProjects/camera_ml/build/ios/Debug-iphoneos/flutter_native_image'
ld: warning: directory not found for option '-L/Users/gurleensethi/FlutterProjects/camera_ml/build/ios/Debug-iphoneos/image_picker'
ld: warning: directory not found for option '-L/Users/gurleensethi/FlutterProjects/camera_ml/build/ios/Debug-iphoneos/nanopb'
ld: warning: directory not found for option '-L/Users/gurleensethi/FlutterProjects/camera_ml/build/ios/Debug-iphoneos/path_provider'
ld: library not found for -lFirebaseCore
clang: error: linker command failed with exit code 1 (use -v to see invocation)

Answer 1

I was having similar issues, and for me the problem was caused by opening Runner.xcodeproj instead of Runner.xcodeworkspace in XCode. This might seem obvious for people experience with XCode, but maybe this will help someone sometime.

Answer 2

it seems you have missing library try :

1. flutter clean
2. flutter build ios