iOS开发中遇到的古怪问题

• xcode升级之后编译报错：The following binaries use incompatible versions of Swift:
  解决方案：xcode->preference->Locations->Derived Data ,工程对应的缓存文件/Users/xxxx/Library/Developer/Xcode/DerivedData再编译就OK了

• 检查Mac OS 上的端口8181占用情况 lsof -i :8181
  结果：
  COMMAND PID USER FD TYPE DEVICE SIZE/OFF NODE NAME
  PerfectTe 54590 zlp003 3u IPv4 0xbdc7cafc134037b7 0t0 TCP *:8181 (LISTEN)
  PerfectTe 54590 zlp003 4u IPv4 0xbdc7cafc133eaebf 0t0 TCP localhost:8181->localhost:49326 (CLOSE_WAIT)
  如果有占用端口，杀死端口 执行 kill 54590（PID）

sourceTree 忽略一些不需要版本管理的文件

• 移除 Breakpoints_v2.xcbkptlist
git rm --cached 工程文件.xcworkspace/xcuserdata/zf.xcuserdatad/xcdebugger/Breakpoints_v2.xcbkptlist
• 移除 UserInterfaceState.xcuserstate
git rm --cached 工程文件.xcworkspace/xcuserdata/zf.xcuserdatad/UserInterfaceState.xcuserstate
  https://www.jianshu.com/p/e61111f69a8f