react-native-picke Cannot read property '_init' of undefined

使用react-native-picker报以下错误:

查看了react-native-picke的issues:

https://github.com/beefe/react-native-picker/issues/128

最后原因是如下所示:

显示libRCTBEEPickermanager.a文件是灰色的,选择删除,再次添加即可.