update dart sdk for flutter
DartFlutterSdkDart Problem Overview
I would like to use dart SDK >= 2.2.0 with flutter. But my current version used BY Flutter is 2.1.2
flutter --version
Flutter 1.2.1 • channel stable • https://github.com/flutter/flutter.git
Framework • revision 8661d8aecd (2 months ago) • 2019-02-14 19:19:53 -0800
Engine • revision 3757390fa4
Tools • Dart 2.1.2 (build 2.1.2-dev.0.0 0a7dcf17eb)
I tried to install the 2.2.0 version independently and I succeed :
dart --version
Dart VM version: 2.2.0 (Tue Feb 26 15:04:32 2019 +0100) on "macos_x64"
However, Flutter doesn't use this version as you can see above. I tried to replace files of the dart-sdk
used by flutter (flutter/bin/cache/dart-sdk
) by the version that I installed independently, but when I try to run Flutter after that I have a snapshot problem so I have put back the original dart-sdk
folder in the flutter directory.
Do you have any ideas how can I update it?
PS: I downloaded flutter very recently (10 days ago) from here: https://flutter.dev/docs/get-started/install/macos
Dart Solutions
Solution 1 - Dart
It might be due to the fact you are on channel stable
which is the most secure builds of the four channels to get updated (channels are listed here)
If you are a bit more curious to try out the new features without having to risk bad builds I advocate channel beta
:
> Every month, we pick the "best" dev build of the previous month or so, and promote it to beta. These builds have been tested with our codelabs.
where the stable channel has this description: > When we believe we have a particularly good build, we promote it to the stable channel. We intend to do this more or less every quarter, but this may vary. We recommend that you use this channel for all production app releases. We may ship hotfixes to the stable channel for high-priority bugs, although our intent is to do this rarely.
You can change the channel to point at beta
by running this command in your terminal:
flutter channel beta
followed by flutter upgrade
to ensure you have got the last release for this particular branch.
Let me know how this affect your situation.
Solution 2 - Dart
You have to upgrade flutter from cli with flutter upgrade
command. Then flutter will use latest version of Dart SDK. Flutter does not use your local Dart Sdk.
Solution 3 - Dart
This issue is because of the dart version and by updating flutter the dart version won't update, the way for solving this is, first, you need to be on the dev or master channel,
flutter channel master
flutter upgrade
after that run flutter doctor -v
as you see your dart is still an old one
in this step, you should update it manually, as the doc says Dart
for Windows user
choco upgrade dart-sdk
for Mac users if you user brew to install dart
brew upgrade dart
and if you don't, you can install it
brew tap dart-lang/dart
brew install dart
wish this solves your issue.
Solution 4 - Dart
follow some command given below :
1.flutter version -> give all the flutter version list available.
2.flutter version v1.12.13+hotfix.7 -> you can switch to any given flutter version
in your console by 1st command.
Solution 5 - Dart
Open terminal commands to Upgrade Flutter – Dart SDK
1-> C:\flutter
2->run command " flutter channel master "
3->run command after switching " flutter upgrade "
Now open android studio which automatically fetch updated sdk from flutter folder
Solution 6 - Dart
Try this
flutter channel stable
flutter upgrade
or this
flutter channel master
flutter upgrade
Solution 7 - Dart
If using windows, you can use chocolatey to upgrade sdk by using command.
choco upgrade dart-sdk
If you want the latest pre-release version:
choco upgrade dart-sdk --pre
Solution 8 - Dart
Yeah, the cause of the problem is inherent in the fact that Flutter does not use the dart present on your Local machine the Flutter sdk instead comes with the latest compatible dart sdk shipped along with it.
When you run the command flutter version
it prints the current flutter version and the current dart-sdk version shipped along with it. If you wish to use a later version of the dart sdk you'll have to upgrade your flutter sdk and if the specific dart-sdk version you want is not yet available for any branch in the stable channel I will suggest you switch to the master or dev channel and hopefully the latest release of those channels will support the required sdk constraint you need. But beware other branches aside the stable branch are not totally safe as you can encounter strange and unresolved errors so have that at the back of your mind.
Solution 9 - Dart
You can upgrade dart SDK using terminal by typing flutter upgrade
.
This will upgrade both flutter and dart SDK.
Actually flutter upgrade
includes the Flutter and Dart SDK and doesn't install them separately.
Solution 10 - Dart
I have two version of flutter SDK at the same time for two different flutter projects. I had changed the current SDK to 1.12 so it was complaining about dart SDK version. I changed the current version to 1.20 and the problem solved.
Solution 11 - Dart
If you struggle to make any of these solutions work, you might have different versions of flutter on your system.
I checked my version on the command line and upgraded via 'flutter upgrade' to the latest stable release, which did not solve the problem in IntelliJ / Android Studio, as that pointed to another local version of flutter.
To check, run 'which flutter' on the command line and check with the version displayed in "Preferences --> Languages & Frameworks --> Flutter" and make sure they point at the same flutter installation.
Solution 12 - Dart
if you using android studio, Tools->Flutter->Flutter upgrade click on flutter upgrade then you can install it
Solution 13 - Dart
I'm using flutter upgrade channel stable
on macOS and it's working fine
Solution 14 - Dart
The dark SDK that you updated is probably the one on your global dart installation.
Check your flutter dart path with the command
which flutter dart
If it is looking like this
[/path-to-flutter-sdk]/bin/flutter
/usr/local/bin/dart
you need to change it to use the one associated to flutter:
[/path-to-flutter-sdk]/bin/flutter
[/path-to-flutter-sdk]/bin/dart
To update it, you need to update your $PATH
so [/path-to-flutter-sdk]/bin/flutter
comes before /usr/local/bin
.