swift项目 9.3以前版本模拟器运行出错
https://www.jianshu.com/p/0a51b79667a0
官方文档链接：
https://developer.apple.com/documentation/xcode_release_notes/xcode_10_2_1_release_notes
https://www.jianshu.com/p/0a51b79667a0
https://developer.apple.com/documentation/xcode_release_notes/xcode_10_2_1_release_notes
