[dart-misc] How to upgrade to Dart 2?

Discussion:

Niyazi Toros

2018-06-19 10:36:55 UTC

Hi,

In my macOS I have IntelliJ and setup dart and Flutter plugin. I develop 1
Flutter mobile app and I need to use Dart to create a web services for my
mobile app.
So, I need to install or upgrade to dart 2. But when I try I m getting this
error. Any help please?

Error: dart-lang/dart/dart 1.24.3 already installed
Niyazis-MBP:~ niyazitoros$ brew tap dart-lang/dart
Niyazis-MBP:~ niyazitoros$ brew install dart
Warning: dart-lang/dart/dart 1.24.3 is already installed and up-to-date
To reinstall 1.24.3, run `brew reinstall dart`
Niyazis-MBP:~ niyazitoros$ brew install dart --devel
==> Installing dart from dart-lang/dart
Error: dart 1.24.3 is already installed
To upgrade to 2.0.0-dev.63.0, run `brew upgrade dart`
Niyazis-MBP:~ niyazitoros$ brew upgrade dart
Error: dart-lang/dart/dart 1.24.3 already installed
Niyazis-MBP:~ niyazitoros$ pub upgrade
Could not find a file named "pubspec.yaml" in "/Users/niyazitoros".
Niyazis-MBP:~ niyazitoros$ pub upgrade transmogrify
Could not find a file named "pubspec.yaml" in "/Users/niyazitoros".
Niyazis-MBP:~ niyazitoros$

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Rob Becker

2018-06-21 00:17:49 UTC

Permalink

Dart 2 isn't available on brew since the stable release of dart 2 is not
out yet. I've been just downloading and extracting the latest dart 2 from
the dev branch here <https://www.dartlang.org/tools/sdk/archive#dev-channel>
and putting it in my path before the other dart.

Post by Niyazi Toros
Hi,
In my macOS I have IntelliJ and setup dart and Flutter plugin. I develop 1
Flutter mobile app and I need to use Dart to create a web services for my
mobile app.
So, I need to install or upgrade to dart 2. But when I try I m getting
this error. Any help please?
Error: dart-lang/dart/dart 1.24.3 already installed
Niyazis-MBP:~ niyazitoros$ brew tap dart-lang/dart
Niyazis-MBP:~ niyazitoros$ brew install dart
Warning: dart-lang/dart/dart 1.24.3 is already installed and up-to-date
To reinstall 1.24.3, run `brew reinstall dart`
Niyazis-MBP:~ niyazitoros$ brew install dart --devel
==> Installing dart from dart-lang/dart
Error: dart 1.24.3 is already installed
To upgrade to 2.0.0-dev.63.0, run `brew upgrade dart`
Niyazis-MBP:~ niyazitoros$ brew upgrade dart
Error: dart-lang/dart/dart 1.24.3 already installed
Niyazis-MBP:~ niyazitoros$ pub upgrade
Could not find a file named "pubspec.yaml" in "/Users/niyazitoros".
Niyazis-MBP:~ niyazitoros$ pub upgrade transmogrify
Could not find a file named "pubspec.yaml" in "/Users/niyazitoros".
Niyazis-MBP:~ niyazitoros$

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Matan Lurey

2018-06-21 00:23:07 UTC

Permalink

Post by Rob Becker
Dart 2 isn't available on brew

It is for me (https://github.com/dart-lang/homebrew-dart#dev-releases):

brew install dart --devel

Post by Rob Becker
since the stable release of dart 2 is not out yet. I've been just
downloading and extracting the latest dart 2 from the dev branch here
<https://www.dartlang.org/tools/sdk/archive#dev-channel> and putting it
in my path before the other dart.

Post by Niyazi Toros
Hi,
In my macOS I have IntelliJ and setup dart and Flutter plugin. I develop
1 Flutter mobile app and I need to use Dart to create a web services for my
mobile app.
So, I need to install or upgrade to dart 2. But when I try I m getting
this error. Any help please?
Error: dart-lang/dart/dart 1.24.3 already installed
Niyazis-MBP:~ niyazitoros$ brew tap dart-lang/dart
Niyazis-MBP:~ niyazitoros$ brew install dart
Warning: dart-lang/dart/dart 1.24.3 is already installed and up-to-date
To reinstall 1.24.3, run `brew reinstall dart`
Niyazis-MBP:~ niyazitoros$ brew install dart --devel
==> Installing dart from dart-lang/dart
Error: dart 1.24.3 is already installed
To upgrade to 2.0.0-dev.63.0, run `brew upgrade dart`
Niyazis-MBP:~ niyazitoros$ brew upgrade dart
Error: dart-lang/dart/dart 1.24.3 already installed
Niyazis-MBP:~ niyazitoros$ pub upgrade
Could not find a file named "pubspec.yaml" in "/Users/niyazitoros".
Niyazis-MBP:~ niyazitoros$ pub upgrade transmogrify
Could not find a file named "pubspec.yaml" in "/Users/niyazitoros".
Niyazis-MBP:~ niyazitoros$

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Patrice Chalin

2018-06-21 11:33:45 UTC

Permalink

Hi,

Sadly, it seems that brew assumes that all dev releases are older than
stable releases. That is why "brew install dart --devel" prints "Error:
dart 1.24.3 is already installed". To get around that, use the --force flag:

*> *brew upgrade dart --devel --force

==> *Upgrading 1 outdated package, with result:*

dart-lang/dart/dart 1.24.3 -> 2.0.0-dev.64.1

==> *Upgrading **dart-lang/dart/dart*

==> *Downloading https://storage.googleapis.com/dart-archive/channels/dev/release/2.0.0-dev.64.1/sdk/dartsdk-macos-x64-release.zip
<https://storage.googleapis.com/dart-archive/channels/dev/release/2.0.0-dev.64.1/sdk/dartsdk-macos-x64-release.zip>*

...

==> *Caveats*

Please note the path to the Dart SDK:

/opt/homebrew/opt/dart/libexec

==> *Summary*

[image: ðº] /opt/homebrew/Cellar/dart/2.0.0-dev.64.1: 1,222 files,
372.9MB, built in 8 seconds

To switch between versions of dart use, for example:

*> *brew switch 1.24.3

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Patrice Chalin

2018-06-21 11:35:52 UTC

Permalink

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'William Hesse' via Dart Misc

2018-06-21 11:40:13 UTC

Permalink

Yes, the ***@2 and ***@1 formulas were added for exactly this purpose.
Until the first stable Dart 2 release is made, you must use the ***@2
formulat to get it, and after the first stable Dart 2 release is made, you

Post by Niyazi Toros

Post by Niyazi Toros
Hi,
In my macOS I have IntelliJ and setup dart and Flutter plugin. I develop
1 Flutter mobile app and I need to use Dart to create a web services for my
mobile app.
So, I need to install or upgrade to dart 2. But when I try I m getting
this error. Any help please?
Error: dart-lang/dart/dart 1.24.3 already installed
Niyazis-MBP:~ niyazitoros$ brew tap dart-lang/dart
Niyazis-MBP:~ niyazitoros$ brew install dart
Warning: dart-lang/dart/dart 1.24.3 is already installed and up-to-date
To reinstall 1.24.3, run `brew reinstall dart`
Niyazis-MBP:~ niyazitoros$ brew install dart --devel
==> Installing dart from dart-lang/dart
Error: dart 1.24.3 is already installed
To upgrade to 2.0.0-dev.63.0, run `brew upgrade dart`
Niyazis-MBP:~ niyazitoros$ brew upgrade dart
Error: dart-lang/dart/dart 1.24.3 already installed
Niyazis-MBP:~ niyazitoros$ pub upgrade
Could not find a file named "pubspec.yaml" in "/Users/niyazitoros".
Niyazis-MBP:~ niyazitoros$ pub upgrade transmogrify
Could not find a file named "pubspec.yaml" in "/Users/niyazitoros".
Niyazis-MBP:~ niyazitoros$

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.

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William Hesse
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Niyazi Toros

2018-06-21 13:28:28 UTC

Permalink

Thank you all. I upgraded to Dart2 using Patrice Chalin suggestion (*> *brew
upgrade dart --devel --force).

I am new to Dart, and I am trying to write Dart Web Api to connect internal
socket api so my Flutter up securely can access it.

This is my first step, and I have to take many more.

Kind Regards

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