Module compiled with Swift 5.x cannot be imported by the Swift 5.3 compiler
***参考:https://cloud.tencent.com/developer/article/1615756https://www.dazhuanlan.com/2019/11/04/5dbf2a802d3d1/简单的说就是当前xcode只会携带swift的最新版本,而如果要支持旧的版本的,就需要toolChain管理,各个版本的链接可以在这里找到:https://swift.org/dow