How to using 3.0.0 dart version?

#10 [6/9] RUN  dart pub get

 

#10 0.566 Resolving dependencies...

#10 0.666 The current Dart SDK version is 2.18.0.

#10 0.666

 

#10 0.666 Because very_good_blog_app_backend requires SDK version >=3.0.0 <4.0.0, version solving failed.

#10 ERROR: process "/bin/bash -ol pipefail -c dart pub get" did not complete successfully: exit code: 1

 

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> [6/9] RUN  dart pub get:

0.566 Resolving dependencies...

0.666 The current Dart SDK version is 2.18.0.

0.666

0.666 Because very_good_blog_app_backend requires SDK version >=3.0.0 <4.0.0, version solving failed.

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Dockerfile:19

-------------------

17 |     # install phase

18 |     COPY pubspec.yaml /app/pubspec.yaml

19 | >>> RUN  dart pub get

20 |

21 |     # build phase

-------------------

ERROR: failed to solve: process "/bin/bash -ol pipefail -c dart pub get" did not complete successfully: exit code: 1

 

Error: Docker build failed

I'm trying to deploy backend site using dart_frog, but current version is 2.18.0. How can I update sdk to 3.0.0 ?

ea4525e1-7b04-4853-b34c-e27b9f562316

try adding this nixpacks.toml file to your project

[phases.setup]
  nixpkgsArchive = '78d1b099125d5db61cc0275fb366806156bf2e9e'

this should use dart 3.0.6
https://github.com/NixOS/nixpkgs/commit/78d1b099125d5db61cc0275fb366806156bf2e9e#diff-efd2d749dcdc66112977e9ab1f5ee01ffe31ddaba98eed2dfd05c91a29c21861R1

I got the error in build log

#8 ERROR: process "/bin/bash -ol pipefail -c nix-env -if .nixpacks/nixpkgs-78d1b099125d5db61cc0275fb366806156bf2e9e.nix && nix-collect-garbage -d" did not complete successfully: exit code: 1

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> [4/9] RUN nix-env -if .nixpacks/nixpkgs-78d1b099125d5db61cc0275fb366806156bf2e9e.nix && nix-collect-garbage -d:

40.14          at /app/.nixpacks/nixpkgs-78d1b099125d5db61cc0275fb366806156bf2e9e.nix:3:12:

40.14

40.14             2|

40.14             3| let pkgs = import (fetchTarball "https://github.com/NixOS/nixpkgs/archive/78d1b099125d5db61cc0275fb366806156bf2e9e.tar.gz";) { overlays = [  ]; };

 

40.14              |            ^

40.14             4| in with pkgs;

40.14

40.14        (stack trace truncated; use '--show-trace' to show the full trace)

40.14

40.14        error: cannot get archive member name: truncated gzip input

I saw that https://github.com/NixOS/nixpkgs/archive/78d1b099125d5db61cc0275fb366806156bf2e9e.tar.gz is not found
Any update in this

well I tried

hmmm, please help me in this if you have any idea

I have no more ideas, I have never touched dart
sorry

That's alright. I will find another solution
Thanks for your help
@Brody I deployed it :)))

awesome!!