问输入的颤振意外结束(在字符1处)

EN

如何修复此错误

错误:flutter/lib/ui/ui_dart_state.cc(148)未处理的异常: FormatException:输入的意外结束(在字符1处)E/颤振(11841)：E/颤振(11841)：^E/颤振(11841)：E/颤振(11841)： 0 (dart:convert/runtime/libconvert_patch.dart:1357:5) E/ _ChunkedJsonParser.fail (11841)： 1 (dart:convert/runtime/libconvert_patch.dart:510:7) E/ _ChunkedJsonParser.close (11841)： 2 (dart:convert/runtime/libconvert_patch.dart:30:10) E/ _parseJson (11841)：#3 JsonDecoder.convert (飞镖:转换/json.dart:491:36)E/颤振(11841)：#4 (飞镖:转换/json.dart:149:41)E/ JsonCodec.decode (11841)：#5 storeSync storeSync E/颤振(11841)：E/颤振(11841)：#6 _ListPageState.initState。(package:reborn_next_job02/ui/AssetRegisters.dart:54:9) E/颤振(11841)：#7 _rootRunUnary (飞镖:异步/飞镖:1132:38)E/颤振(11841)：#8 _CustomZone.runUnary (飞镖:异步/飞镖:1029:19)E/颤振(11841)：9 _CustomZone.runUnaryGuarded (dart:异步/zone.dart:931:7)E/ _CustomZone.bindUnaryCallbackGuarded (11841)：#10 _CustomZone.bindUnaryCallbackGuarded。(飞镖:异步/左转:968:26)E/颤振(11841)：#11 _rootRunUnary (飞镖:异步/zone.dart:1136:13)E/ _CustomZone.runUnary (11841)：#12 _CustomZone.bindUnaryCallback (飞镖:异步/zone.dart:1029:19)E/颤振(11841)：#13 _CustomZone.bindUnaryCallback。(飞镖:异步/左转:952:26)E/颤振(11841)：#14 (dart:isolate/runtime/libtimer_impl.dart:382:19) E/颤振(11841)：#15 _Timer._handleMessage (dart:isolate/runtime/libtimer_impl.dart:416:5) E/颤振(11841)：#16 _RawReceivePortImpl._handleMessage (dart:isolate/runtime/libisolate_patch.dart:171:12)

syncApi.dart

storeSync(String url, String token) async {
  final response = await http.get(
    '$url/v1.0/SyncDataTable',
    headers: {'Authorization': 'Bearer $token'},
  );


  final jsonResponse = json.decode(response.body);
  SyncModel model = SyncModel.fromJson(jsonResponse);
  int length = model.data.length;

HelperSync().display()).elementAt(i)?.syn_ChangeSequence,


  for (int i = 0; i < length; i++) {
    if ((await HelperSync().display()).elementAt(i)?.syn_TableName == model.data[i].syn_TableName) {
      if ((await HelperSync().display()).elementAt(i)?.syn_ChangeSequence != model.data[i].syn_ChangeSequence) {
        switch (i) {
          case 21:
            {
              await HelperDatabase1().storeRegister(url, token);
            }
            break;
        }
      }
    }
  }
}