Mysql 未处理的异常：参数无效：DART上的长度0非法

当我尝试使用进行简单选择时，应用程序会引发以下异常：

E/flutter (11252): [ERROR:flutter/lib/ui/ui_dart_state.cc(166)] Unhandled Exception: Invalid argument(s): Illegal length 0
E/flutter (11252): #0      _NativeSocket.read (dart:io-patch/socket_patch.dart:819:7)
E/flutter (11252): #1      _RawSocket.read (dart:io-patch/socket_patch.dart:1614:22)
E/flutter (11252): #2      Buffer.readFromSocket (package:mysql1/src/buffer.dart:48:30)
E/flutter (11252): #3      BufferedSocket._readBuffer (package:mysql1/src/buffered_socket.dart:178:36)
E/flutter (11252): #4      BufferedSocket._onData (package:mysql1/src/buffered_socket.dart:93:9)
E/flutter (11252): #5      _rootRunUnary (dart:async/zone.dart:1206:13)
E/flutter (11252): #6      _CustomZone.runUnary (dart:async/zone.dart:1100:19)
E/flutter (11252): #7      _CustomZone.runUnaryGuarded (dart:async/zone.dart:1005:7)
E/flutter (11252): #8      _BufferingStreamSubscription._sendData (dart:async/stream_impl.dart:357:11)
E/flutter (11252): #9      _BufferingStreamSubscription._add (dart:async/stream_impl.dart:285:7)
E/flutter (11252): #10     _SyncStreamControllerDispatch._sendData (dart:async/stream_controller.dart:808:19)
E/flutter (11252): #11     _StreamController._add (dart:async/stream_controller.dart:682:7)
E/flutter (11252): #12     _StreamController.add (dart:async/stream_controller.dart:624:5)
E/flutter (11252): #13     new _RawSocket.<anonymous closure> (dart:io-patch/socket_patch.dart:1556:33)
E/flutter (11252): #14     _NativeSocket.issueReadEvent.issue (dart:io-patch/socket_patch.dart:1052:14)
E/flutter (11252): #15     _microtaskLoop (dart:async/schedule_microtask.dart:41:21)
E/flutter (11252): #16     _startMicrotaskLoop (dart:async/schedule_microtask.dart:50:5)
E/flutter (11252): 

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您的表

servicios

是否有列调用

placa

，并且表中的

id

在任何地方都没有重复？@Sisir该表有列“placa”，并且id是唯一的，我已经准备好用表的图像编辑问题了