Type mismatch errors in json_theme package for CardTheme, DialogTheme, and TabBarTheme

[mr-september]

Description

Building the app fails due to type mismatches in the json_theme package. The encoder is unable to handle the updated Theme types from Flutter.

Error Details

Three type mismatch errors occur in theme_encoder.dart:

1. CardThemeData cannot be assigned to CardTheme?
2. DialogThemeData cannot be assigned to DialogTheme?
3. TabBarThemeData cannot be assigned to TabBarTheme?

Environment

• Flutter version: 3.27.0 (stable channel)
• Flutter framework: revision 8495dee1fd (2024-12-10 14:23:39 -0800)
• Engine: revision 83bacfc525
• Dart: 3.6.0
• DevTools: 2.40.2
• json_theme package version: 20570ff
• Operating System: Windows 11
• Development Environment: Visual Studio Code

Error Log

/C:/Users/<USERNAME>/AppData/Local/Pub/Cache/git/json_theme-f08555bb50b7e55d49fc292bf873ed0573b7d986/json_theme/lib/src/codec/theme_encoder.dart:7089:44: Error: The argument type 'CardThemeData' can't be assigned to the parameter type 'CardTheme?'.     
 - 'CardThemeData' is from 'package:flutter/src/material/card_theme.dart' ('/E:/flutter/packages/flutter/lib/src/material/card_theme.dart').
 - 'CardTheme' is from 'package:flutter/src/material/card_theme.dart' ('/E:/flutter/packages/flutter/lib/src/material/card_theme.dart').
        'cardTheme': encodeCardTheme(value.cardTheme),
                                           ^
/C:/Users/<USERNAME>/AppData/Local/Pub/Cache/git/json_theme-f08555bb50b7e55d49fc292bf873ed0573b7d986/json_theme/lib/src/codec/theme_encoder.dart:7100:48: Error: The argument type 'DialogThemeData' can't be assigned to the parameter type 'DialogTheme?'. 
 - 'DialogThemeData' is from 'package:flutter/src/material/dialog_theme.dart' ('/E:/flutter/packages/flutter/lib/src/material/dialog_theme.dart').
 - 'DialogTheme' is from 'package:flutter/src/material/dialog_theme.dart' ('/E:/flutter/packages/flutter/lib/src/material/dialog_theme.dart').
        'dialogTheme': encodeDialogTheme(value.dialogTheme),
                                               ^
/C:/Users/<USERNAME>/AppData/Local/Pub/Cache/git/json_theme-f08555bb50b7e55d49fc292bf873ed0573b7d986/json_theme/lib/src/codec/theme_encoder.dart:7162:48: Error: The argument type 'TabBarThemeData' can't be assigned to the parameter type 'TabBarTheme?'. 
 - 'TabBarThemeData' is from 'package:flutter/src/material/tab_bar_theme.dart' ('/E:/flutter/packages/flutter/lib/src/material/tab_bar_theme.dart').
 - 'TabBarTheme' is from 'package:flutter/src/material/tab_bar_theme.dart' ('/E:/flutter/packages/flutter/lib/src/material/tab_bar_theme.dart').
        'tabBarTheme': encodeTabBarTheme(value.tabBarTheme),
                                               ^
Target kernel_snapshot_program failed: Exception


FAILURE: Build failed with an exception.

* Where:
Script 'E:\flutter\packages\flutter_tools\gradle\src\main\groovy\flutter.groovy' line: 1685

* What went wrong:
Execution failed for task ':app:compileFlutterBuildDebug'.
> Process 'command 'E:\flutter\bin\flutter.bat'' finished with non-zero exit value 1

* Try:
> Run with --stacktrace option to get the stack trace.
> Run with --info or --debug option to get more log output.
> Run with --scan to get full insights.
> Get more help at https://help.gradle.org.

Steps to Reproduce

git clone https://github.com/Mantano/iridium.git
cd iridium/demo-app
flutter devices <-- Pick a device id in the list (in the 2nd column)
flutter run -d <device_id>