Error on flutter pub run build_runner build

Question

I am facing this issue when I run flutter pub run build_runner build. I have tried solutions like flutter clean, flutter pub-cache repair flutter pub get, etc. Dependencies like Mockito, HTTP, and build_runner are added on pubspec and flutter pub get ran successfully as well.

Failed to precompile build_runner:build_runner:
../../snap/flutter/common/flutter/.pub-cache/hosted/pub.dartlang.org/analyzer-1.6.0/lib/src/error/best_practices_verifier.dart:1600:40: Error: Getter not found: 'topLevelVariable'.
      return kinds.contains(TargetKind.topLevelVariable);
                                       ^^^^^^^^^^^^^^^^
../../snap/flutter/common/flutter/.pub-cache/hosted/pub.dartlang.org/analyzer-1.6.0/lib/src/error/best_practices_verifier.dart:2024:23: Error: Getter not found: 'topLevelVariable'.
      case TargetKind.topLevelVariable:
                      ^^^^^^^^^^^^^^^^
../../snap/flutter/common/flutter/.pub-cache/hosted/pub.dartlang.org/analyzer-1.6.0/lib/src/error/best_practices_verifier.dart:2024:23: Error: Type 'dynamic' of the case expression is not a subtype of type 'TargetKind' of this switch expression.
 - 'TargetKind' is from 'package:meta/meta_meta.dart' ('../../snap/flutter/common/flutter/.pub-cache/hosted/pub.dartlang.org/meta-1.3.0/lib/meta_meta.dart').
      case TargetKind.topLevelVariable:
                      ^
../../snap/flutter/common/flutter/.pub-cache/hosted/pub.dartlang.org/analyzer-1.6.0/lib/src/error/best_practices_verifier.dart:2001:13: Context: The switch expression is here.
    switch (this) {
            ^
pub finished with exit code 1

Answer 1

adding the analyser https://pub.dev/packages/analyzer dependency 1.5.0 in the dev-dependencies of pubspec yaml worked for me

 dev_dependencies:
   analyzer: 1.5.0