[bug]: Flutter 3.38 / Dart 3.10 — visitDotShorthandInvocation analyzer crash in stacked_generator

[Karthikn-n]

Describe the bug

I’m writing to report a blocking compatibility issue with the latest Flutter (v3.38.3) / Dart (3.10) SDKs that prevents stacked_generator from running. The analyzer emits an exception for a new AST node (DotShorthandInvocation) and the generator fails with:

W SDK language version 3.10.0 is newer than analyzer language version 3.9.0. Run flutter packages upgrade.
E stacked_generator:stackedRouterGenerator on lib/app/app.dart:
Exception: Missing implementation of visitDotShorthandInvocation
#0 ThrowingAstVisitor._throw (package:analyzer/dart/ast/visitor.dart:2971:5)
#1 ThrowingAstVisitor.visitDotShorthandInvocation (package:analyzer/dart/ast/visitor.dart:2538:66)
#2 DotShorthandInvocationImpl.accept (package:analyzer/src/dart/ast/ast.dart:5459:15)
...
This results in build_runner failing and no generated files (app.g.dart / other generated outputs) being created.

What operating system do you use?

Windows

Information about the installed tooling

Environment & versions

Flutter: 3.38.3

Dart: 3.10.0

stacked: ^3.4.0 (current in my pubspec)

stacked_generator: ^2.0.0

build_runner: ^2.7.1

OS: Windows 10 (local)

environment in pubspec.yaml: sdk: ">=3.0.0 <4.0.0"

Steps to reproduce the issue

Update Flutter to 3.38.3 (flutter upgrade).

Run flutter pub upgrade --major-versions

Run flutter pub get with the pubspec shown above.

Run dart run build_runner build --delete-conflicting-outputs.

Observe the error about visitDotShorthandInvocation and aborted generator — no generated files appear.

Expected behavior

No response

Screenshots

No response

Additional Context

Dart 3.10 introduced a DotShorthandInvocation AST node (or analyzer changed) and the analyzer/parser now encounters it.

ThrowingAstVisitor is invoking visitDotShorthandInvocation but stacked_generator’s visitor/handlers don’t implement it yet, causing a thrown exception.

The analyzer language-level warning SDK language version 3.10.0 is newer than analyzer language version 3.9.0 also hints at transitive analyzer incompatibilities.

[Eimen2018]

Hi @Karthikn-n do you have ande dependency_overrides ?

[revrkk]

I’m facing the same issue whenever I use dot-shorthand syntax in my code. If I replace the shorthand with the full form, it works fine, but the shorthand version fails. This happens while using Flutter 3.38.3 and Dart 3.10.1.

I’ve included the details below.

**flutter --version**           
Flutter 3.38.3 • channel stable • https://github.com/flutter/flutter.git
Framework • revision 19074d12f7 (9 days ago) • 2025-11-20 17:53:13 -0500
Engine • hash 8bf2090718fea3655f466049a757f823898f0ad1 (revision 13e658725d) (9 days ago) • 2025-11-20 20:19:23.000Z
Tools • Dart 3.10.1 • DevTools 2.51.1

**dart run build_runner build -d**
Building package executable... 
Built build_runner:build_runner.
0s stacked_generator:stackedRouterGenerator on 11 inputs: 11 skipped                                                                                                                           
0s stacked_generator:stackedLoggerGenerator on 22 inputs: 22 skipped                                                                                                                           
0s stacked_generator:stackedLocatorGenerator on 44 inputs: 44 skipped                                                                                                                          
0s stacked_generator:stackedFormGenerator on 88 inputs: 88 skipped                                                                                                                             
0s stacked_generator:stackedDialogGenerator on 176 inputs: 176 skipped                                                                                                                         
0s stacked_generator:stackedBottomsheetGenerator on 352 inputs: 352 skipped                                                                                                                    
                                                                                                                                                                                               
Failed to build with build_runner in 1s; wrote 0 outputs.                                                                                                                                      
                                                                                                                                                                                               
log output for stacked_generator:stackedRouterGenerator on lib/app/app.dart                                                                                                                    
E 23:22: This requires the 'dot-shorthands' language feature to be enabled.                                                                                                                    
log output for stacked_generator:stackedLoggerGenerator on lib/app/app.dart                                                                                                                    
E 23:22: This requires the 'dot-shorthands' language feature to be enabled.                                                                                                                    
log output for stacked_generator:stackedLocatorGenerator on lib/app/app.dart                                                                                                                   
E 23:22: This requires the 'dot-shorthands' language feature to be enabled.                                                                                                                    
log output for stacked_generator:stackedFormGenerator on lib/app/app.dart                                                                                                                      
E 23:22: This requires the 'dot-shorthands' language feature to be enabled.                                                                                                                    
log output for stacked_generator:stackedDialogGenerator on lib/app/app.dart                                                                                                                    
E 23:22: This requires the 'dot-shorthands' language feature to be enabled.                                                                                                                    
log output for stacked_generator:stackedBottomsheetGenerator on lib/app/app.dart                                                                                                               
E 23:22: This requires the 'dot-shorthands' language feature to be enabled.

My pupspec.yaml looks like the below

name: xxxxxxx
description: "xxxxxxxxxxxxxx"
publish_to: "none"
version: 1.0.0+1
environment:
  sdk: ^3.10.1

dependencies:
  flutter:
    sdk: flutter
  stacked_services: ^1.6.0
  stacked: ^3.5.0

dev_dependencies:
  flutter_test:
    sdk: flutter
  flutter_lints: ^6.0.0
  stacked_generator: ^2.0.0
  build_runner: ^2.7.1

[Karthikn-n]

Hi @Karthikn-n do you have ande dependency_overrides ?

Nope

[Nicola-Pozza]

@FilledStacks any solution to this?
I'm facing the same issue, I'm stuck with the upgrade of Flutter 3.38
Thanks!

[isaacadariku]

Temporary Fix for Dart 3.10+ FormatterException. Until this is released, you can use this fork as a temporary workaround:

Update your pubspec.yaml

 stacked_generator:
    git:
      url: https://github.com/isaacadariku/stacked_generator.git
      ref: fix-dot-shorthand-formatter-error

This fixes the dot-shorthand syntax error in form validation maps when using Dart 3.10+.

[federicopolesellostiga]

@FilledStacks do you have any news on this? Without forking the repo?
Thank you very much