I have an error when I tried to launch my project on my iPhone, the basic Flutter example is working on my iPhone but when I use my project I have this error.
I faced the same issue and none of the above work. Finally I resolved it by:
ios/.symlinks/plugins contains extra plugin which you are not using.podfile.lock in ios folder, if it exists.podfile from ios folder.pods folder in ios directory.flutter clean in the terminal.flutter pub get in the terminal.flutter runin the terminal.