Can't catch error assureDioError

[thep0y]

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• I have searched for a similar issue in the project and found none

Issue Info

Info	Value
Platform Name	flutter
Platform Version	2.2.3
Dio Version	4.0.0
Android Studio / Xcode Version	Android Studio 2020.3.1
Repro rate	all the time (100%)
Repro with our demo prj	no
Demo project link	e.g. link to a demo project that highlights the issue

Issue Description and Steps

Disconnect from the network.

  Future<Response> _get(String url) async {
    try {
      return await dio.get(url, options: Options(responseDecoder: _gbkDecoder));
    } catch (e) {
      print(e);
      return Future.error(e);
    }
  }

[Domzak]

Same here

[2shrestha22]

this is the problem by the time I am using dio

[theowenyoung]

Same here

[a7md0]

Same here, and those issues too

#1171
#1306

[wendux]

try 4.0.3