SocketException: Failed host lookup: 'methods.abc.com' (OS Error: No address associated with hostname, errno = 7), StackTrace :

Question

I store the API error logs in my DB. I found so many errors on my DB. the log message is the same.

SocketException: Failed host lookup: 'xxx.abc.com' (OS Error: No address associated with hostname, errno = 7), StackTrace :

BTW, This error only occurs to random users. Not for all users.

function

  Future<dynamic> abc() async {
    var responseJson;
    try {
      final response = await http.post('${env.url}/xxx/xxx/xxx', headers: {'Authorization': 'Bearer xxx'});
      responseJson = _response(response, _errorMap);
      return responseJson;
    }
    catch (e, s) {
      errorLog.store('$e, StackTrace : $s', _errorMap);
      throw FetchDataException('message');
    }
  }

env.url looks like this, https://xxx.abc.com

xml

<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    package="xxx">
    <uses-permission android:name="android.permission.INTERNET"/>
    <uses-permission android:name="android.permission.VIBRATE"/>
    <uses-permission android:name="android.permission.ACCESS_FINE_LOCATION"/>
    <uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />
    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>
    <application ...

package

  http: ^0.12.2

In my case, I made a silly mistake tho, Forgot to turn on Wi-Fi. — CHIRAG SAHU, Mar 28 '23 at 13:27

score 3 · Answer 1 · answered Apr 28 '21 at 09:06

3

Make Sure that you have active internet connection along with permission defined in AndroidManifest.xml

answered Apr 28 '21 at 09:06

Kalpesh Khandla

758
1
9
22

score 2 · Answer 2 · answered Jan 14 '21 at 07:02

2

This may not be a Flutter problem. Instead, that is OS Error which is far more low level.

Firstly, have a check at this: Unable to resolve host "<url here>"; No address associated with hostname.

For example, if your user closed his Wifi and mobile network, then you will see this error.

Usually it is not caused by a bug in your code, but just because the user has no network - if he has no network, how can he resolve the domain name!

Thus, for me, personally, I just ignore such type of error. In other words, I do not report these errors to my backend.

answered Jan 14 '21 at 07:02

ch271828n

15,854
5
53
88

Thanks. okay, but how this log message store on DB without the internet? btw, I used firestore – BIS Tech Jan 15 '21 at 05:22
@BloodLoss temporarily save on local file. then upload when have network. for example, https://flutter.dev/docs/cookbook/persistence/reading-writing-files – ch271828n Jan 15 '21 at 14:40

score 1 · Answer 3 · answered Dec 18 '21 at 05:04

1

In my case, I restarted my laptop and it was fine. Most of the times restarting computer will solve the problems like this.

answered Dec 18 '21 at 05:04

atigdawgahb

41
1
5

score 1 · Answer 4 · answered Jan 09 '22 at 16:17

First thing we should have a active internet connection.
Second thing we should enable the wifi in our android emulator.
Next thing we should add permissions correctly in AndroidManifest.xml

[Flutter Networking] : https://docs.flutter.dev/development/data-and-backend/networking

<manifest xmlns:android...>
 ...
 <uses-permission android:name="android.permission.INTERNET" />
 <application ...
</manifest>

Then after we do those steps we should restart the emulator and run the app.

I have all these and the error is showing up intermittantly – anandhu Sep 07 '22 at 17:06 — anandhu, Sep 07 '22 at 17:06

score 0 · Answer 5 · answered Dec 04 '21 at 09:20

0

In My case I opened the emulator and after that I connected to the WIFI. So, wifi connected to my system but unable to connect to emulator .

Solutions:

I Closed the emulator and re-open it. And Finally works..

answered Dec 04 '21 at 09:20

Rahul Kushwaha

5,473
3
26
30

SocketException: Failed host lookup: 'methods.abc.com' (OS Error: No address associated with hostname, errno = 7), StackTrace :

5 Answers5