XCode的输出：
/Users/amolyadav/Downloads/flutter/.pub-cache/hosted/pub.dartlang.org/flutter_sms-0.1.0/ios/Classes/FlutterSmsPlugin.m:2:9: fatal error:
'flutter_sms/flutter_sms-Swift.h' file not found
#import "flutter_sms/flutter_sms-Swift.h"
1 error generated.