After updating to MacOS 10.15 Catalina, there are problems with Flutter.
Specifically, Flutter doctor complaints about the following:>
Its possible to install cocoapods, run flutter build ios and run on the iOS simulator.
brew uninstall cocoapods
sudo gem install -n /usr/local/bin cocoapods
pod install
Detailed instructions are here: This terminal won't let me run or install cocoa pods because I am on MacOS Catalina Beta?