How to Solve Pub Run build_runner build Failed In Flutter ?

How to Solve Pub Run build_runner build Failed In Flutter ?

When the user creates a flutter project and runs a flutter command flutter pub get sometimes he may get an error that says “How to Solve Pub Run build_runner build Failed In Flutter ?”

How to Solve Pub Run build_runner build Failed In Flutter?

To Solve this error user can give try to below method:

flutter pub get && flutter pub run build_runner build --delete-conflicting-outputs

add a dependency in pubsec.yaml, analyzer: ‘0.39.14‘. Add Dependencies like the below:

flutter clean
flutter pub cache repair
flutter pub run build_runner clean

Then run,

flutter pub run build_runner build

Users can give try to below method.

Successfully generating all *.g.dart files with:

build_runner 0.9.2

json_serializable 0.5.8+1

json_annotation 0.2.9+1

It seems to break build_runner or json_serializable in version:

Analyzer: 0.39.16

Going back to the dart analyzer version:

Analyzer: 0.39.14

This error is basically caused by the auto formatter removing the line like below.

part 'my_class.g.dart';

Conclusion:

In this article, We have a walkthrough How to Solve Pub Run build_runner build Failed In Flutter?

Thanks for Reading !!!

Keep Learning !!! Keep Fluttering !!!

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