Keep getting the following error message in React Native, really don't understand where it is coming from
Warning: Can't call setState on a component that is not yet mounted. This is a no-op, but it might indicate a bug in your application. Instead, assign to
this.statedirectly or define astate = {};class property with the desired state in the ConnectionMqtt component.
constructor(){
super();
this.onMessageArrived = this.onMessageArrived.bind(this)
}
componentDidMount() {
const conn = new ConnectionMqtt();
conn.onMessageArrived = this.onMessageArrived;
}
You should not use setState in the constructor since the component is not mounted yet. In this case clickMe() method calls setState(). Instead, initialize the state directly. Like,
constructor(props) {
super(props);
// Don't call this.setState() here!
this.state = { counter: 0 };
this.handleClick = this.handleClick.bind(this);
}
example if from https://reactjs.org/docs/react-component.html#constructor