Adding dependency results in error

[passsy]

I have not even added any union code to my pure dart project and build_runner results in following error:

$ pub run build_runner watch
[SEVERE] Failed to snapshot build script .dart_tool/build/entrypoint/build.dart.
This is likely caused by a misconfigured builder definition.
[SEVERE] ../../../../.pub-cache/hosted/pub.dartlang.org/freezed-0.1.0/lib/src/generator.dart:97:99: Error: The method 'getDisplayString' isn't defined for the class 'DartType'. - 'DartType' is from 'package:analyzer/dart/element/type.dart' ('../../../../.pub-cache/hosted/pub.dartlang.org/analyzer-0.39.0/lib/dart/element/type.dart').Try correcting the name to the name of an existing method, or defining a method named 'getDisplayString'.        for (final property in commonProperties) Getter(name: property.name, type: property.type?.getDisplayString()),                                                                                                  ^^^^^^^^^^^^^^^^../../../../.pub-cache/hosted/pub.dartlang.org/freezed-0.1.0/lib/src/generator.dart:121:64: Error: The method 'getDisplayString' isn't defined for the class 'DartType'. - 'DartType' is from 'package:analyzer/dart/element/type.dart' ('../../../../.pub-cache/hosted/pub.dartlang.org/analyzer-0.39.0/lib/dart/element/type.dart').Try correcting the name to the name of an existing method, or defining a method named 'getDisplayString'.            Property(name: property.name, type: property.type?.getDisplayString())                                                               ^^^^^^^^^^^^^^^^../../../../.pub-cache/hosted/pub.dartlang.org/freezed-0.1.0/lib/src/generator.dart:124:55: Error: The method 'getDisplayString' isn't defined for the class 'DartType'. - 'DartType' is from 'package:analyzer/dart/element/type.dart' ('../../../../.pub-cache/hosted/pub.dartlang.org/analyzer-0.39.0/lib/dart/element/type.dart').Try correcting the name to the name of an existing method, or defining a method named 'getDisplayString'.          return Property(name: p.name, type: p.type?.getDisplayString());                                                      ^^^^^^^^^^^^^^^^../../../../.pub-cache/hosted/pub.dartlang.org/freezed-0.1.0/lib/src/templates/parameter_template.dart:43:25: Error: The method 'getDisplayString' isn't defined for the class 'DartType'. - 'DartType' is from 'package:analyzer/dart/element/type.dart' ('../../../../.pub-cache/hosted/pub.dartlang.org/analyzer-0.39.0/lib/dart/element/type.dart').Try correcting the name to the name of an existing method, or defining a method named 'getDisplayString'.          type: e.type?.getDisplayString(),                        ^^^^^^^^^^^^^^^^../../../../.pub-cache/hosted/pub.dartlang.org/freezed-0.1.0/lib/src/templates/parameter_template.dart:51:23: Error: The method 'getDisplayString' isn't defined for the class 'DartType'. - 'DartType' is from 'package:analyzer/dart/element/type.dart' ('../../../../.pub-cache/hosted/pub.dartlang.org/analyzer-0.39.0/lib/dart/element/type.dart').Try correcting the name to the name of an existing method, or defining a method named 'getDisplayString'.        type: e.type?.getDisplayString(),                      ^^^^^^^^^^^^^^^^

Same happens when I add freezed union code.

Pub 2.7.0
analyzer 0.39.0
build_runner 1.7.4
freezed 0.1.0
source_gen 0.9.4+7

[passsy]

Upgrading to analyzer 0.39.4 solves the issue. You should upgrade the dependency range

freezed/pubspec.yaml

Line 14 in 1c5fb7e

analyzer: ^0.39.0

[rrousselGit]

Done.
It sounds like it was added in 0.39.2