SocketException:Connection failed (OS Error: Network is unreachable, errno = 101), address = 10.0.2.2, port = 80

Question

Making a login screen in flutter when i tap the login it gives the error 'network is Unreachable'.

I have change the ip addresses "10.0.2.2" , "8.7.7.7" but doesn't work.

Error :

E/flutter (16082): [ERROR:flutter/lib/ui/ui_dart_state.cc(148)] Unhandled 
Exception: SocketException: Connection failed 
(OS Error: Network is unreachable, errno = 101), address = 10.0.2.2, port = 80

CODE :

TextEditingController user=new TextEditingController();
TextEditingController pass=new TextEditingController();

Future<List> _login() async{
  final response = await http.post("http://127.0.0.1/my_store/login.php", body: {
    "username": user.text,
    "password": pass.text,
   
  });

  print(response.body);
  }

Depending on whether your device is running in an emulator or on an external device, the IP address for accessing the local server must be adjusted. Here's a little explanation: stackoverflow.com/a/34732276/6513167 I don't know your setup, so I also don't know how to reach your local server. — Martin Niederl
– Martin Niederl, Commented Jun 29, 2019 at 10:54

Zahra · Accepted Answer · 2021-02-03 09:58:50Z

18

In my case turning on the wifi and making sure that it is connected solved the issue.

edited Feb 3, 2021 at 9:58

answered Jan 20, 2021 at 13:00

Zahra

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1 Comment

dKen Over a year ago

Discovering this forced me to create the (long overdue) network and internet connectivity features for my app. Hopefully it won't catch me again!

Dmitrii Matunin · Accepted Answer · 2022-12-02 16:02:07Z

15

Turning OFF the Wi-fi on emulator helped me!

answered Dec 2, 2022 at 16:02

Dmitrii Matunin

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1 Comment

Joe M Over a year ago

Worked for me, too. Thanks very much! This was strange, because other API calls were working to prove valid internet connection but only one was failing.

Hawkar Shwany · Accepted Answer · 2020-03-09 18:36:39Z

3

if you are using a physical device make sure the ip address is the ip of your computer. you can find it by running ipconfig in cmd. Remember you have to be connected to the internet to have this ip address.

answered Mar 9, 2020 at 18:36

Hawkar Shwany

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Comments

wafL · Accepted Answer · 2019-12-13 11:06:34Z

I have searched some threads about this and similar connection problems. In my case, sometimes the connection works, sometimes it refuses to work. The process I used to solve this problem was the following:

Open cmd -> ipconfig

the ip that is relevant for my solution

Since I am using an Apache server, and I have a php file that handles the request I make in Flutter, I set the url to the following:

 String url="http://192.168.0.137/login.php"

In your case, the code would be

    TextEditingController user=new TextEditingController();
    TextEditingController pass=new TextEditingController();

    Future<List> _login() async{
      final response = await http.post("http://<your_ipv4_of_ipconfig>/my_store/login.php", body: {
        "username": user.text,
        "password": pass.text,

      });

      print(response.body);
      }

Akram Esg · Accepted Answer · 2021-04-03 10:55:28Z

0

After many hours of head scratching, in my case it was the data connection icon was turned off by mistake cutting all sorts of data streams to vm :~

answered Apr 3, 2021 at 10:55

Akram Esg

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