エラー

flutter でbuild error。

$ flutter pub run build_runner build --delete-conflicting-outputs

...

Bad state: No element
[INFO] 2.7s elapsed, 4/5 actions completed.
[SEVERE] built_value_generator:built_value on lib/graphql/queries/user.req.gql.dart:
Error in BuiltValueGenerator for abstract class GGetUserReq implements Built<GGetUserReq, dynamic>, OperationRequest<dynamic, GGetUserVars>.
Please make the following changes to use BuiltValue:

1. Make field optimisticResponse have non-dynamic type. If you are already specifying a type, please make sure the type is correctly imported.
[INFO] Running build completed, took 3.0s

原因

graphqlファイルで、存在しないカラム名（fcsToken）を指定していた。
built_value_generatorでエラーが出ていて、エラーわかりにくい、、

user.graphqls

query GetUser {
    currentUser {
        id
        firebaseUID
        // ↓ここタイポ
        fcsToken
        name
        iconUrl
        createdAt
        updatedAt
    }
}

タイポを修正した。

user.graphqls

query GetUser {
    currentUser {
        id
        firebaseUID
        // ↓ここ直した
        fcmToken
        name
        iconUrl
        createdAt
        updatedAt
    }
}

再度、build_runnerを実行して解決。

$ flutter pub run build_runner build --delete-conflicting-outputs
[INFO] Generating build script...
[INFO] Generating build script completed, took 427ms

[INFO] Initializing inputs
[INFO] FlutterGen Loading ... pubspec.yaml
[INFO] Reading cached asset graph...
[INFO] Generated: /Users/hayashikengo/ghq/github.com/hkengo/kakeibo_mobile/lib/gen/assets.gen.dart
[INFO] FlutterGen finished.
[INFO] Reading cached asset graph completed, took 246ms

[INFO] Checking for updates since last build...
[INFO] Checking for updates since last build completed, took 730ms

[INFO] Running build...
[INFO] 2.1s elapsed, 4/6 actions completed.
[INFO] Running build completed, took 2.8s

[INFO] Caching finalized dependency graph...
[INFO] Caching finalized dependency graph completed, took 51ms

[INFO] Succeeded after 2.9s with 9 outputs (11 actions)