SocketException: OS Error: Connection refused, errno = 111, address = localhost, port = 53452

Flutterにcloud_firestore導入したらAMSupportURLConnectionDelegate is implemented in bothが出た

Xcodeで実機デバッグ試すとThis operation can fail if the version of the OS on the device is incompatible…と出る

XcodeでimageLiteralが出てこない