错误边界应实现getDerivedStateFromError()

时间:2018-12-30 02:14:34

标签: javascript firebase react-native firebase-authentication

我正在一个项目上,并且一切正常,突然由于这个错误我的应用程序崩溃了:

Warning: %s: Error boundaries should implement getDerivedStateFromError(). 
In that method, return a state update to display an error message or fallback UI., RootErrorBoundary

这些文件中的错误:

* src/config/routes.js:31:27 in <unknown>
* src/modules/auth/actions.js:69:29 in <unknown>

包含用于route.js的_this.setState的行:

componentDidMount() {
    let _this = this;
    store.dispatch(checkLoginStatus((isLoggedIn) => {
        _this.setState({isReady: true, isLoggedIn});
    }));
}

,并在包含actions.js的回调(isLoggedIn)的行中:

export function checkLoginStatus(callback) {
    return (dispatch) => {
        auth.onAuthStateChanged((user) => {
            let isLoggedIn = (user !== null);

            if (isLoggedIn) {
                //get the user object from the Async storage
                AsyncStorage.getItem('user', (err, user) => {
                    if (user === null) isLoggedIn = false //set the loggedIn value to false
                    else dispatch({type: t.LOGGED_IN, data: JSON.parse(user)})

                    callback(isLoggedIn);
                });
            } else {
                dispatch({type: t.LOGGED_OUT});
                callback(isLoggedIn);
            }
        });
    };
}

请帮助我解决此问题。

1 个答案:

答案 0 :(得分:-7)

我通过清除应用程序数据来解决