[bug]: stacked_generator:StackedFormGenerator

[MadSkillsDeveloper]

Describe the bug

I am having the following issue when using FormView annotation:

`This may indicate an issue in the generator, the input source code, or in the
source formatter.
Could not format because the source could not be parsed:

line 250, column 52 of .: Expected an identifier.
╷
250 │ this.formValueMap..addAll({ValueKey: }),
│ ^
╵
[SEVERE] Failed after 30.3s
Failed to update packages.
`

My FormView:

const List dropdownItems = [
StaticDropdownItem(value: 'street', title: 'Street'),
StaticDropdownItem(value: 'box', title: 'Box'),
StaticDropdownItem(value: 'flat', title: 'Flat'),
StaticDropdownItem(value: 'farm', title: 'Farm'),
StaticDropdownItem(value: 'plot', title: 'Plot'),
];

@FormView(fields: [
FormDropdownField(items: dropdownItems),
FormTextField(
name: "line1", validator: AddressValidator.validateAddressLine1),
FormTextField(name: "line2"),
FormTextField(
name: "suburb", validator: AddressValidator.validateAddressSuburb),
FormTextField(name: "city", validator: AddressValidator.validateAddressCity),
FormTextField(
name: "zipCode", validator: AddressValidator.validateAddressZipCode)
])

What operating system do you use?

Windows

Information about the installed tooling

$ flutter doctor -v
[√] Flutter (Channel stable, 3.29.0, on Microsoft Windows [Version 10.0.26100.3476], locale en-ZA) [976ms]
• Flutter version 3.29.0 on channel stable at C:\flutter
• Upstream repository https://github.com/flutter/flutter.git
• Framework revision 35c388afb5 (6 weeks ago), 2025-02-10 12:48:41 -0800
• Engine revision f73bfc4522
• Dart version 3.7.0
• DevTools version 2.42.2

[√] Windows Version (11 Pro 64-bit, 24H2, 2009) [6.6s]

[√] Android toolchain - develop for Android devices (Android SDK version 35.0.0) [7.5s]
• Android SDK at C:\Program Files (x86)\Android\android-sdk
• Platform android-35, build-tools 35.0.0
• ANDROID_HOME = C:\Program Files (x86)\Android\android-sdk
• Java binary at: C:\Program Files\Android\Android Studio\jbr\bin\java
This is the JDK bundled with the latest Android Studio installation on this machine.
To manually set the JDK path, use: flutter config --jdk-dir="path/to/jdk".
• Java version OpenJDK Runtime Environment (build 21.0.5+-12932927-b750.29)
• All Android licenses accepted.

[√] Chrome - develop for the web [474ms]
• Chrome at C:\Program Files\Google\Chrome\Application\chrome.exe

[!] Visual Studio - develop Windows apps (Visual Studio Community 2022 17.13.3) [473ms]
• Visual Studio at D:\Microsoft Visual Studio\2022\Community
• Visual Studio Community 2022 version 17.13.35828.75
• Windows 10 SDK version 10.0.22621.0
X The current Visual Studio installation is incomplete.
Please use Visual Studio Installer to complete the installation or reinstall Visual Studio.

[√] Android Studio (version 2024.3) [32ms]
• Android Studio at C:\Program Files\Android\Android Studio
• Flutter plugin can be installed from:
https://plugins.jetbrains.com/plugin/9212-flutter
• Dart plugin can be installed from:
https://plugins.jetbrains.com/plugin/6351-dart
• Java version OpenJDK Runtime Environment (build 21.0.5+-12932927-b750.29)

[√] VS Code (version 1.97.2) [30ms]
• VS Code at C:\Users\Lulamile Gaji\AppData\Local\Programs\Microsoft VS Code
• Flutter extension version 3.106.0

[√] VS Code (version 1.98.0-insider) [29ms]
• VS Code at C:\Users\Lulamile Gaji\AppData\Local\Programs\Microsoft VS Code Insiders
• Flutter extension can be installed from:
https://marketplace.visualstudio.com/items?itemName=Dart-Code.flutter

[√] Connected device (4 available) [523ms]
• sdk gphone64 x86 64 (mobile) • emulator-5554 • android-x64 • Android 15 (API 35) (emulator)
• Windows (desktop) • windows • windows-x64 • Microsoft Windows [Version 10.0.26100.3476]
• Chrome (web) • chrome • web-javascript • Google Chrome 134.0.6998.89
• Edge (web) • edge • web-javascript • Microsoft Edge 134.0.3124.83

[√] Network resources [860ms]
• All expected network resources are available.

! Doctor found issues in 1 category.

Steps to reproduce the issue

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

Expected behavior

No response

Screenshots

No response

Additional Context

No response