1、Debug模式下会报如下错误：
错误：Invariant Violation:Calling synchronous methods on native modules is not supported in Chrome.
Consider providing alternative methods to expose this method in debug mode.e.g.bu exposing constants ahead-of-time.
解决：Debug模式下，注释以下代码：
import { Client } from ‘rollbar-react-native‘;
const rollbar = new Client(‘6628ae4**********575f8e2f267‘);
【React Native】在React Native项目中使用rollbar-react-native记录
原文：https://www.cnblogs.com/xjf125/p/12331150.html