[SEVERE] Failed to precompile build script .dart_tool/build/entrypoint/build.dart. This is likely caused by a misconfigured builder definition

Question

[INFO] Precompiling build script......
[WARNING] ../../flutter/.pub-cache/hosted/pub.dartlang.org/gql_code_builder-0.2.0/lib/src/ast.dart:618:12: Error: A non-null value must be returned since the return type 'Expression' doesn't allow null.
 - 'Expression' is from 'package:code_builder/src/specs/expression.dart' ('../../flutter/.pub-cache/hosted/pub.dartlang.org/code_builder-4.1.0/lib/src/specs/expression.dart').
Expression _directiveLocation(DirectiveLocation location) {
           ^
[INFO] Precompiling build script... completed, took 838ms

[SEVERE] Failed to precompile build script .dart_tool/build/entrypoint/build.dart.
This is likely caused by a misconfigured builder definition.

Please clarify your specific problem or provide additional details to highlight exactly what you need. As it's currently written, it's hard to tell exactly what you're asking. — Community
– Community Bot, Commented Apr 22, 2022 at 12:20

Berke Uğur · Accepted Answer · 2024-10-11 13:35:38Z

26

flutter pub upgrade && flutter clean && flutter pub cache clean

this helped me

edited Oct 11, 2024 at 13:35

answered Apr 21, 2024 at 17:30

Berke Uğur

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3 Comments

ymerdrengene Over a year ago

Adding flutter pub get, resolved it for me

Dmitrii Matunin Over a year ago

It is flutter pub cache clean - NOT clear

hab Feb 28 at 14:27

this solution not working for all cases it's for specific one with specific packages

Andrey Alexandrov · Accepted Answer · 2023-01-31 10:02:33Z

12

Try "flutter pub upgrade". This helped me.

answered Jan 31, 2023 at 10:02

Andrey Alexandrov

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serena7889 · Accepted Answer · 2024-11-19 12:13:26Z

7

Deleting the pubspec.lock file fixed it for me.

In my case, this seems to have been caused by running flutter pub get with circular dependancies.

answered Nov 19, 2024 at 12:13

serena7889

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2 Comments

Md Sadab Wasim Jun 21 at 8:24

This worked for me, thanks a lot

Hoang Aug 29 at 8:25

This also worked for me when changing environment from windows to macos

matteodg · Accepted Answer · 2022-04-22 10:30:35Z

1

It looks like here there is a fix gql-dart/gql#308

dependency_overrides:
  gql: 0.13.0

answered Apr 22, 2022 at 10:30

matteodg

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1 Comment

Oleksii Vynokur Over a year ago

This work only for gql package. In other cases it's useless.

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