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### Description flutter run then error: SWIFT_VERSION '5.0' is unsupported, supported versions are: 3.0, 4.0, 4.2. how to solve this problem? ### Platform IOS code: ylldeMac:flutter_ly_app yll$ flutter run Launching...

登录0001，监听消息，0002发送消息 ，监听不到 await Application.jmessage.login(username: '0001', password: "123456"); await Application.jmessage.addReceiveMessageListener((dynamic msg){ print("收到消息"); print(msg.toString()); });

源码不完整啊