Because app requires SDK version >=2.15.1 <3.0.0, version solving failed

Question

Can anyone tell me why am I getting this error?

The current Dart SDK version is 2.12.0.

Because app requires SDK version >=2.15.1 <3.0.0, version solving failed.
pub get failed (1; Because app requires SDK version >=2.15.1 <3.0.0, version solving failed.)

here is my flutter --version

Flutter 2.10.1 • channel stable • https://github.com/flutter/flutter.git
Framework • revision db747aa133 (2 days ago) • 2022-02-09 13:57:35 -0600
Engine • revision ab46186b24
Tools • Dart 2.16.1 • DevTools 2.9.2

Just change the sdk version in your pubspec.yaml to the requested version. Your pubspect should have something like this `sdk: ">=2.12.0 <3.0.0"` is change to this `sdk: ">=2.15.1 <3.0.0"`. — Chance, Feb 11 '22 at 13:50

score 26 · Answer 1 · answered May 19 '22 at 12:34

26

Run flutter upgrade, after run flutter pub get

answered May 19 '22 at 12:34

ncutixavier

455
5
4

score 10 · Answer 2 · answered Feb 11 '22 at 13:57

10

You should not update the dart version of this project, please open pubspec.yaml file and update

environment: sdk: ">=2.12.0 <3.0.0"

to

environment: sdk: ">=2.16.0 <3.0.0"

answered Feb 11 '22 at 13:57

Qasim

249
1
7

score 3 · Answer 3 · answered Sep 29 '22 at 09:42

3

I have had the same issue. Go to pubspec.yaml and change then make it :

environment:
  sdk: '>=2.15.1 <3.0.0'

No need to upgrade flutter if you are already in the latest version. Just do this and I hope this will work.

answered Sep 29 '22 at 09:42

Som

61
1
6

score 2 · Answer 4 · answered Feb 11 '22 at 13:29

2

I think you should update dart version, can upgrade dart version this link

answered Feb 11 '22 at 13:29

Yasin Ege

605
4
14

score 2 · Answer 5 · answered Mar 15 '22 at 17:26

2

like @Yasin Ege says, dart need to upgrade in order to use:

flutter channel <channel to update master or beta>
flutter upgrade

answered Mar 15 '22 at 17:26

bebetor

21
2

score 0 · Answer 6 · edited Jul 17 '22 at 02:56

0

you can resolve this error by changing : flutter_lints: ^2.0.0 To flutter_lints: ^1.0.0 in pubspace.yaml.

edited Jul 17 '22 at 02:56

Hamed

5,867
4
32
56

answered Jul 15 '22 at 11:12

John At

1

score 0 · Answer 7 · answered Aug 22 '22 at 04:30

flutter channel <master or beta>
flutter upgrade

But if you check dart --version is the version that matches the version the project requires and still get the error "version solving failed." like this.

flutter clean
flutter channel <master or beta>
flutter upgrade --force

score 0 · Answer 8 · answered Sep 21 '22 at 13:22

0

When prompting your command just use flutter pub add ... instead of dart

answered Sep 21 '22 at 13:22

Finley Adams

773
1
8
20

score 0 · Answer 9 · answered Sep 22 '22 at 01:47

0

Go pubspec.yaml and edit minimun to your dart version

From environment: sdk: ">=2.15.1 <3.0.0"

To environment: sdk: ">=2.12.0 <3.0.0"

answered Sep 22 '22 at 01:47

Sir Joe

41
2

score 0 · Answer 10 · answered Mar 24 '23 at 08:21

0

it only run 'flutter upgrade' is ok.

answered Mar 24 '23 at 08:21

小蜜蜂

1
2

As it’s currently written, your answer is unclear. Please [edit] to add additional details that will help others understand how this addresses the question asked. You can find more information on how to write good answers [in the help center](/help/how-to-answer). – Community Apr 01 '23 at 22:31

score 0 · Answer 11 · edited May 09 '23 at 11:48

0

Go to your terminal and find the dart version by using this command dart --version. Copy your dart version and go to pubspec.yaml file and change your sdk version >=2.19.6 <3.0.0 to your current dart version. You have to replace version that is left side.

error with Dart SDK version in given image:

error with Dart SDK version in given image

replace the highlighted version to your current Dart SDK version:

replace the highlighted version to your current Dart SDK version

your current Dart SDK version is here:

your current Dart SDK version is here

Your problem will be resolved easily by following these simple steps

edited May 09 '23 at 11:48

Esmaeil Ahmadipour

840
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11
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answered May 08 '23 at 10:00

Usama Baig

1
1

Your answer could be improved with additional supporting information. Please [edit] to add further details, such as citations or documentation, so that others can confirm that your answer is correct. You can find more information on how to write good answers [in the help center](/help/how-to-answer). – Community May 08 '23 at 12:02

score 0 · Answer 12 · answered Jul 02 '23 at 12:43

0

If no of theme worked try this

flutter pub cache repair

flutter pub get

answered Jul 02 '23 at 12:43

samad shukr

561
7
15

Because app requires SDK version >=2.15.1 <3.0.0, version solving failed

12 Answers12