Flutter web build exits with error due to Dart SDK

Support
1

How to enforce the Dart SDK version for build?

Deploy: Netlify App

build log:

3:58:51 PM: Running “flutter pub get” in repo…

3:58:52 PM: The current Dart SDK version is 2.6.0-dev.5.0.flutter-d6c6d12ebf.

3:58:52 PM: Because xxxxxx requires SDK version >=2.6.0 <3.0.0, version solving failed.

3:58:52 PM: pub get failed (1)

2

Hey @radek,

You should be able to update this from “dependencies” within your package.json file. Let me know if this helps!

3

Actually the reason was that Flutter does not update .metadata files during its upgrades. So everything is correct on the Netlify side.

Resolved. Thanks

4

great, glad its working!

5

Hi mate, do you mind letting the rest of us know exactly what you did to build flutter apps on netlify? Thanks.

6

I am building the web release of the flutter app from the last commit. So this is not related to the android / ios apps. Is the flutter web of your interest?

8

I am using the master channel.
FLUTTER_BRANCH=grep channel: .metadata | sed 's/ channel: //g'
FLUTTER_REVISION=grep revision: .metadata | sed 's/ revision: //g'
…
git checkout $FLUTTER_BRANCH
git pull origin $FLUTTER_BRANCH
git checkout $FLUTTER_REVISION
…

9

Are you using what is mentioned on this?

10

I am using, what is mentioned here: Netlify Build command script to deploy a Flutter Web App · GitHub