我在iOS设备上运行时出错，但在模拟器上没有错误。
我尝试删除＆＃34; node_modules＆＃34;重新安装并重新创建项目仍然有这个：
2016-08-12 18:50:59.247 [warn][tid:com.facebook.React.JavaScript] The regenerator/runtime module is deprecated; please import regenerator-runtime/runtime instead.
2016-08-12 18:50:59.604 [error][tid:com.facebook.React.JavaScript] Can't find variable: Symbol
2016-08-12 18:50:59.608 [fatal][tid:com.facebook.React.RCTExceptionsManagerQueue] Unhandled JS Exception: Can't find variable: Symbol
2016-08-12 18:50:59.619 [info][tid:com.facebook.React.JavaScript] Running application "Qtq" with appParams: {"rootTag":1,"initialProps":{}}. __DEV__ === true, development-level warning are ON, performance optimizations are OFF
感谢任何帮助。