HandleUncaughtErrorHandler error:OS Error: Bad file descriptor, errno = 9

[chensimin920511]

Report: type:HandleUncaughtErrorHandler error:OS Error: Bad file descriptor, errno = 9 stackTrace:#0 _NativeSocket.nativeGetOption (dart:io-patch/socket_patch.dart:1693:53) #1 _NativeSocket.getOption (dart:io-patch/socket_patch.dart:1571:18) #2 _RawDatagramSocket.broadcastEnabled (dart:io-patch/socket_patch.dart:2493:40) #3 UDP.send. (package:udp/src/udp_base.dart:113:32) #4 UDP.send. (package:udp/src/udp_base.dart:112:29) #5 new Future.microtask. (dart:async/future.dart:276:37) #6 _rootRun (dart:async/zone.dart:1418:47) #7 _CustomZone.run (dart:async/zone.dart:1328:19) #8 _CustomZone.runGuarded (dart:async/zone.dart:1236:7) #9 _CustomZone.bindCallbackGuarded. (dart:async/zone.dart:1276:23) #10 _rootRun (dart:async/zone.dart:1426:13) #11 _CustomZone.run (dart:async/zone.dart:1328:19) #12 _CustomZone.runGuarded (dart:async/zone.dart:1236:7) #13 _CustomZone.bindCallbackGuarded. (dart:async/zone.dart:1276:23) #14 _microtaskLoop (dart:async/schedule_microtask.dart:40:21) #15 _startMicrotaskLoop (dart:async/schedule_microtask.dart:49:5) extraInfo:null