Flutter | Dart : Target of URI does not exist

Question

I am making my first Application to build an Android App with Flutter. I am using Android Studio as IDE. The problem is when I import the http package:

 import 'package:http/http.dart' as http;

I get an error :

error: Target of URI doesn't exist: 'package:http/http.dart'. (uri_does_not_exist at [flutter_crypto] lib\home_page.dart:3)

That's my code :

  Future<List> getCurrencies() async{
    String cryptoUrl = "https://api.coinmarketcap.com/v1/ticker/?limit=50";
    http.Response response = await http.get(cryptoUrl);
    return JSON.decode(response.body);
  }

Thanks,

seems like a duplicate stackoverflow.com/q/44909653/10409567 — griffins
– griffins, Commented Aug 17, 2019 at 17:38

Phuthib · Accepted Answer · 2018-12-28 09:05:28Z

32

You need to add the HTTP dependency to pubspec.yaml as per below.

 dependencies:
      flutter:
        sdk: flutter

      # The following adds the Cupertino Icons font to your application.
      # Use with the CupertinoIcons class for iOS style icons.
      cupertino_icons: ^0.1.2
      http: ^0.12.0

With the dependency added you then need to run the following command to update/install required packages:

flutter packages upgrade

Hope this helps

answered Dec 28, 2018 at 9:05

Phuthib

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1 Comment

Hom Bahrani Over a year ago

with vs code you may need to restart the ide as well at the end

Richard Heap · Accepted Answer · 2019-01-11 23:22:16Z

8

Make sure you have added the dependency to pubspec.yaml

dependencies:
  http: ^0.12.0

You will also need to:

flutter packages get

edited Jan 11, 2019 at 23:22

answered Dec 27, 2018 at 18:33

Richard Heap

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Comments

Ahmed Saied · Accepted Answer · 2019-01-04 07:07:55Z

3

For any upcoming problem with importing packages from dart please go to official Dart website packages and search for needed package and you will find solution up there.

for your issue go to:

https://pub.dartlang.org/packages/http
Installing tap https://pub.dartlang.org/packages/http#-installing-tab-
follow guide steps:

In pubspec.yaml file:@ dependencies
```
 dependencies:
     http: ^0.12.0
     flutter:
```

(NB: please make sure that http & flutter or any other attribute inside dependencies are aligned as above and they are at same line)

In terminal run below command:

$flutter packages get

edited Jan 4, 2019 at 7:07

answered Jan 2, 2019 at 23:28

Ahmed Saied

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Comments

Alireza Ebrahimi · Accepted Answer · 2021-04-04 03:21:11Z

0

run: dart pub --trace get --no-precompile in android srudio Terminal

answered Apr 4, 2021 at 3:21

Alireza Ebrahimi

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