Build fails after upgrading Realm to 20.2.0 due to analyzer_plugin type conflicts

[gauravkatkar4242]

What happened?

After upgrading the Realm Flutter package, our project fails to build with the following errors related to analyzer_plugin and type conflicts between Element and Element2. It seems like some dependencies are incompatible with the current analyzer version.

Repro steps

Upgrade Realm in pubspec.yaml to the latest version.

Run flutter pub get.

Run flutter pub run build_runner build (or any build using build_runner).

Version

3.29.3

What Atlas Services are you using?

Local Database only

What type of application is this?

Flutter Application

Client OS and version

Code snippets

No response

Stacktrace of the exception/crash you're getting

Building package executable... (5.5s)
Built build_runner:build_runner.
[INFO] Generating build script completed, took 750ms
[WARNING] ../../../.pub-cache/hosted/pub.dev/analyzer_plugin-0.12.0/lib/src/utilities/change_builder/change_builder_dart.dart:2133:32: Error: The argument type 'Element' can't be assigned to the parameter type 'Element2'.
 - 'Element' is from 'package:analyzer/dart/element/element.dart' ('../../../.pub-cache/hosted/pub.dev/analyzer-7.6.0/lib/dart/element/element.dart').
 - 'Element2' is from 'package:analyzer/dart/element/element2.dart' ('../../../.pub-cache/hosted/pub.dev/analyzer-7.6.0/lib/dart/element/element2.dart').
            .publiclyExporting(element, resultCache: resultCache) ??
                               ^
../../../.pub-cache/hosted/pub.dev/analyzer_plugin-0.12.0/lib/src/utilities/change_builder/change_builder_dart.dart:2133:54: Error: The argument type 'Map<Element, LibraryElement?>?' can't be assigned to the parameter type 'Map<Element2, LibraryElement2?>?'.
 - 'Map' is from 'dart:core'.
 - 'Element' is from 'package:analyzer/dart/element/element.dart' ('../../../.pub-cache/hosted/pub.dev/analyzer-7.6.0/lib/dart/element/element.dart').
 - 'LibraryElement' is from 'package:analyzer/dart/element/element.dart' ('../../../.pub-cache/hosted/pub.dev/analyzer-7.6.0/lib/dart/element/element.dart').
 - 'Element2' is from 'package:analyzer/dart/element/element2.dart' ('../../../.pub-cache/hosted/pub.dev/analyzer-7.6.0/lib/dart/element/element2.dart').
 - 'LibraryElement2' is from 'package:analyzer/dart/element/element2.dart' ('../../../.pub-cache/hosted/pub.dev/analyzer-7.6.0/lib/dart/element/element2.dart').
            .publiclyExporting(element, resultCache: resultCache) ??
                                                     ^
../../../.pub-cache/hosted/pub.dev/analyzer_plugin-0.12.0/lib/src/utilities/change_builder/change_builder_dart.dart:2137:40: Error: The getter 'source' isn't defined for the class 'Object'.
 - 'Object' is from 'dart:core'.
Try correcting the name to the name of an existing getter, or defining a getter or field named 'source'.
    var uriToImport = libraryToImport?.source.uri;
                                       ^^^^^^
../../../.pub-cache/hosted/pub.dev/analyzer_plugin-0.12.0/lib/src/utilities/change_builder/change_builder_dart.dart:2150:58: Error: The argument type 'Object?' can't be assigned to the parameter type 'LibraryElement?'.
 - 'Object' is from 'dart:core'.
 - 'LibraryElement' is from 'package:analyzer/dart/element/element.dart' ('../../../.pub-cache/hosted/pub.dev/analyzer-7.6.0/lib/dart/element/element.dart').
      _removeUnnecessaryPendingElementImports(newImport, libraryToImport);
                                                         ^
../../../.pub-cache/hosted/pub.dev/analyzer_plugin-0.12.0/lib/src/utilities/change_builder/change_builder_dart.dart:2182:14: Error: The method 'publiclyExporting2' isn't defined for the class 'TopLevelDeclarations'.
 - 'TopLevelDeclarations' is from 'package:analyzer/src/services/top_level_declarations.dart' ('../../../.pub-cache/hosted/pub.dev/analyzer-7.6.0/lib/src/services/top_level_declarations.dart').
Try correcting the name to the name of an existing method, or defining a method named 'publiclyExporting2'.
            .publiclyExporting2(element, resultCache: resultCache) ??
             ^^^^^^^^^^^^^^^^^^
[INFO] Precompiling build script... completed, took 8.2s
[SEVERE] Failed to precompile build script .dart_tool/build/entrypoint/build.dart.

Relevant log output

[gauravkatkar4242]

Just following up on this issue. The upcoming Google deadline to update the page size to 16KB is approaching, and this build failure after upgrading to Realm 20.2.0 due to analyzer_plugin type conflicts is blocking progress.

Any updates, guidance, or temporary workarounds would be greatly appreciated.

Thank you!

[nirinchev]

20.2.0 had to pin the version of the build dependency due to incompatibilities introduced in later versions. I am not sure if that's the reason for the conflict, but considering nothing else has changed, it's very likely to be the case. My advice would be to either identify the package that has a conflicting build dependency and find a version that's compatible with Realm or try to upgrade build in the Realm generator packages and put up a PR to unblock the upgrade.