Margins\' is from \'package:flutter_html/src/style/margin.dart\' Flutter 构建失败如何解决？答案

【问题标题】：Margins' is from 'package:flutter_html/src/style/margin.dart' Flutter build failed how to solve it?Margins\' is from \'package:flutter_html/src/style/margin.dart\' Flutter 构建失败如何解决？
【发布时间】：2022-12-09 04:06:26
【问题描述】：

建筑零安全

警告：意外元素（uri：“”，本地：“扩展级别”）。预期的元素是 <{}codename>、<{}layoutlib>、<{}api-level> 警告：意外元素（uri：“”，本地：“base-extension”）。预期的元素是 <{}codename>、<{}layoutlib>、<{}api-level> lib/service/messaging.dart:25:70: 错误：位置参数太多：允许 2 个，但找到 3 个。尝试删除额外的位置参数。 const AndroidNotificationChannel 通道 = AndroidNotificationChannel( ^ /C:/src/flutter/.pub-cache/hosted/pub.dartlang.org/flutter_local_notifications-12.0.4/lib/src/platform_specifics/android/notification_channel.dart:10:9: 上下文：找到这个候选人，但是这参数不匹配。常量 AndroidNotificationChannel( ^^^^^^^^^^^^^^^^^^^^^^^^^^^ lib/service/messaging.dart:218:48: 错误：位置参数太多：允许 2 个，但找到 3 个。尝试删除额外的位置参数。机器人：AndroidNotificationDetails（ ^ /C:/src/flutter/.pub-cache/hosted/pub.dartlang.org/flutter_local_notifications-12.0.4/lib/src/platform_specifics/android/notification_details.dart:102:9: 上下文：找到这个候选人，但是这参数不匹配。常量 AndroidNotificationDetails( ^^^^^^^^^^^^^^^^^^^^^^^^^^^ lib/service/messaging.dart:202:9: 错误：没有名为“onSelectNotification”的命名参数。 onSelectNotification: onSelectNotification, ^^^^^^^^^^^^^^^^^^^^^ lib/mixins/product_mixin.dart:153:34：错误：无法将参数类型“EdgeInsets”分配给参数类型“边距？”。

“EdgeInsets”来自“package:flutter/src/painting/edge_insets.dart”（“/C:/src/flutter/packages/flutter/lib/src/painting/edge_insets.dart”）。
'边距'来自'package:flutter_html/src/style/margin.dart' ('/C:/src/flutter/.pub-cache/hosted/pub.dartlang.org/flutter_html-3.0.0- alpha.6/lib/src/style/margin.dart'）。保证金：EdgeInsets.zero， ^ lib/mixins/product_mixin.dart:157:34：错误：无法将参数类型“EdgeInsets”分配给参数类型“边距？”。
“EdgeInsets”来自“package:flutter/src/painting/edge_insets.dart”（“/C:/src/flutter/packages/flutter/lib/src/painting/edge_insets.dart”）。
'边距'来自'package:flutter_html/src/style/margin.dart' ('/C:/src/flutter/.pub-cache/hosted/pub.dartlang.org/flutter_html-3.0.0- alpha.6/lib/src/style/margin.dart'）。保证金：EdgeInsets.zero， ^ lib/mixins/product_mixin.dart:171:32：错误：无法将参数类型“EdgeInsets”分配给参数类型“边距？”。
“EdgeInsets”来自“package:flutter/src/painting/edge_insets.dart”（“/C:/src/flutter/packages/flutter/lib/src/painting/edge_insets.dart”）。
'边距'来自'package:flutter_html/src/style/margin.dart' ('/C:/src/flutter/.pub-cache/hosted/pub.dartlang.org/flutter_html-3.0.0- alpha.6/lib/src/style/margin.dart'）。保证金：EdgeInsets.zero， ^ lib/mixins/product_mixin.dart:175:32：错误：无法将参数类型“EdgeInsets”分配给参数类型“边距？”。
“EdgeInsets”来自“package:flutter/src/painting/edge_insets.dart”（“/C:/src/flutter/packages/flutter/lib/src/painting/edge_insets.dart”）。
'边距'来自'package:flutter_html/src/style/margin.dart' ('/C:/src/flutter/.pub-cache/hosted/pub.dartlang.org/flutter_html-3.0.0- alpha.6/lib/src/style/margin.dart'）。保证金：EdgeInsets.zero， ^ lib/mixins/review_mixin.dart:111:51: 错误：参数类型 'double?'无法分配给参数类型“double”，因为“double?”可以为 null 而 'double' 不是。 fontSize: FontSize(theme.textTheme.caption!.fontSize), ^ lib/mixins/review_mixin.dart:109:26: 错误：无法将参数类型“EdgeInsets”分配给参数类型“边距？”。
“EdgeInsets”来自“package:flutter/src/painting/edge_insets.dart”（“/C:/src/flutter/packages/flutter/lib/src/painting/edge_insets.dart”）。
'边距'来自'package:flutter_html/src/style/margin.dart' ('/C:/src/flutter/.pub-cache/hosted/pub.dartlang.org/flutter_html-3.0.0- alpha.6/lib/src/style/margin.dart'）。保证金：EdgeInsets.zero， ^ lib/mixins/review_mixin.dart:121:30: 错误：无法将参数类型“EdgeInsets”分配给参数类型“边距？”。
“EdgeInsets”来自“package:flutter/src/painting/edge_insets.dart”（“/C:/src/flutter/packages/flutter/lib/src/painting/edge_insets.dart”）。
'边距'来自'package:flutter_html/src/style/margin.dart' ('/C:/src/flutter/.pub-cache/hosted/pub.dartlang.org/flutter_html-3.0.0- alpha.6/lib/src/style/margin.dart'）。保证金：EdgeInsets.zero， ^ lib/mixins/review_mixin.dart:124:30: 错误：无法将参数类型“EdgeInsets”分配给参数类型“边距？”。
“EdgeInsets”来自“package:flutter/src/painting/edge_insets.dart”（“/C:/src/flutter/packages/flutter/lib/src/painting/edge_insets.dart”）。
'边距'来自'package:flutter_html/src/style/margin.dart' ('/C:/src/flutter/.pub-cache/hosted/pub.dartlang.org/flutter_html-3.0.0- alpha.6/lib/src/style/margin.dart'）。保证金：EdgeInsets.zero， ^ lib/mixins/review_mixin.dart:127:25：错误：无法将参数类型“EdgeInsets”分配给参数类型“边距？”。
“EdgeInsets”来自“package:flutter/src/painting/edge_insets.dart”（“/C:/src/flutter/packages/flutter/lib/src/painting/edge_insets.dart”）。
'边距'来自'package:flutter_html/src/style/margin.dart' ('/C:/src/flutter/.pub-cache/hosted/pub.dartlang.org/flutter_html-3.0.0- alpha.6/lib/src/style/margin.dart'）。保证金：const EdgeInsets.only（左：itemPaddingMedium）， ^ lib/mixins/review_mixin.dart:129:40: 错误：无法将参数类型“EdgeInsets”分配给参数类型“边距？”。
“EdgeInsets”来自“package:flutter/src/painting/edge_insets.dart”（“/C:/src/flutter/packages/flutter/lib/src/painting/edge_insets.dart”）。
'边距'来自'package:flutter_html/src/style/margin.dart' ('/C:/src/flutter/.pub-cache/hosted/pub.dartlang.org/flutter_html-3.0.0- alpha.6/lib/src/style/margin.dart'）。 'h1'：样式（边距：EdgeInsets.zero）， ^ lib/mixins/review_mixin.dart:130:40: 错误：无法将参数类型“EdgeInsets”分配给参数类型“边距？”。
“EdgeInsets”来自“package:flutter/src/painting/edge_insets.dart”（“/C:/src/flutter/packages/flutter/lib/src/painting/edge_insets.dart”）。
'边距'来自'package:flutter_html/src/style/margin.dart' ('/C:/src/flutter/.pub-cache/hosted/pub.dartlang.org/flutter_html-3.0.0- alpha.6/lib/src/style/margin.dart'）。 'h2'：样式（边距：EdgeInsets.zero）， ^ lib/mixins/review_mixin.dart:131:40: 错误：无法将参数类型“EdgeInsets”分配给参数类型“边距？”。
“EdgeInsets”来自“package:flutter/src/painting/edge_insets.dart”（“/C:/src/flutter/packages/flutter/lib/src/painting/edge_insets.dart”）。
'边距'来自'package:flutter_html/src/style/margin.dart' ('/C:/src/flutter/.pub-cache/hosted/pub.dartlang.org/flutter_html-3.0.0- alpha.6/lib/src/style/margin.dart'）。 'h3'：样式（边距：EdgeInsets.zero）， ^ lib/mixins/review_mixin.dart:132:40: 错误：无法将参数类型“EdgeInsets”分配给参数类型“边距？”。
“EdgeInsets”来自“package:flutter/src/painting/edge_insets.dart”（“/C:/src/flutter/packages/flutter/lib/src/painting/edge_insets.dart”）。
'边距'来自'package:flutter_html/src/style/margin.dart' ('/C:/src/flutter/.pub-cache/hosted/pub.dartlang.org/flutter_html-3.0.0- alpha.6/lib/src/style/margin.dart'）。 'h4'：样式（边距：EdgeInsets.zero）， ^ lib/mixins/review_mixin.dart:133:40: 错误：无法将参数类型“EdgeInsets”分配给参数类型“边距？”。
“EdgeInsets”来自“package:flutter/src/painting/edge_insets.dart”（“/C:/src/flutter/packages/flutter/lib/src/painting/edge_insets.dart”）。
'边距'来自'package:flutter_html/src/style/margin.dart' ('/C:/src/flutter/.pub-cache/hosted/pub.dartlang.org/flutter_html-3.0.0- alpha.6/lib/src/style/margin.dart'）。 'h5'：样式（边距：EdgeInsets.zero）， ^ lib/mixins/review_mixin.dart:134:40: 错误：无法将参数类型“EdgeInsets”分配给参数类型“边距？”。
“EdgeInsets”来自“package:flutter/src/painting/edge_insets.dart”（“/C:/src/flutter/packages/flutter/lib/src/painting/edge_insets.dart”）。
'边距'来自'package:flutter_html/src/style/margin.dart' ('/C:/src/flutter/.pub-cache/hosted/pub.dartlang.org/flutter_html-3.0.0- alpha.6/lib/src/style/margin.dart'）。 'h6'：样式（边距：EdgeInsets.zero）， ^ lib/widgets/cirilla_html.dart:31:27：错误：无法调用需要 const 表达式的非“const”构造函数。尝试使用“const”的构造函数或工厂。字体大小：常量字体大小（16）， ^^^^^^^^ lib/widgets/cirilla_html.dart:35:27：错误：无法调用需要 const 表达式的非“const”构造函数。尝试使用“const”的构造函数或工厂。字体大小：常量字体大小（16）， ^^^^^^^^ lib/widgets/builder/post_comment/post_comment.dart:165:66: 错误：无法调用需要 const 表达式的非“const”构造函数。尝试使用“const”的构造函数或工厂。 “div”：样式（字体大小：const FontSize（12））， ^^^^^^^^ lib/widgets/builder/post_comment/post_comment.dart:166:70: 错误：参数类型“EdgeInsets”不能分配给参数类型“边距？”。
“EdgeInsets”来自“package:flutter/src/painting/edge_insets.dart”（“/C:/src/flutter/packages/flutter/lib/src/painting/edge_insets.dart”）。
'边距'来自'package:flutter_html/src/style/margin.dart' ('/C:/src/flutter/.pub-cache/hosted/pub.dartlang.org/flutter_html-3.0.0- alpha.6/lib/src/style/margin.dart'）。 “身体”：样式（边距：EdgeInsets.zero）， ^ lib/widgets/builder/post_comment/post_comment.dart:167:67: 错误：参数类型“EdgeInsets”不能分配给参数类型“边距？”。
“EdgeInsets”来自“package:flutter/src/painting/edge_insets.dart”（“/C:/src/flutter/packages/flutter/lib/src/painting/edge_insets.dart”）。
'边距'来自'package:flutter_html/src/style/margin.dart' ('/C:/src/flutter/.pub-cache/hosted/pub.dartlang.org/flutter_html-3.0.0- alpha.6/lib/src/style/margin.dart'）。 “p”：样式（边距：EdgeInsets.zero）， ^ lib/screens/post/blocks/core_paragraph.dart:14:26: 错误：参数类型“EdgeInsets”不能分配给参数类型“边距？”。
“EdgeInsets”来自“package:flutter/src/painting/edge_insets.dart”（“/C:/src/flutter/packages/flutter/lib/src/painting/edge_insets.dart”）。
'边距'来自'package:flutter_html/src/style/margin.dart' ('/C:/src/flutter/.pub-cache/hosted/pub.dartlang.org/flutter_html-3.0.0- alpha.6/lib/src/style/margin.dart'）。保证金：EdgeInsets.zero， ^ lib/screens/post/blocks/core_paragraph.dart:18:26: 错误：无法将参数类型“EdgeInsets”分配给参数类型“边距？”。
“EdgeInsets”来自“package:flutter/src/painting/edge_insets.dart”（“/C:/src/flutter/packages/flutter/lib/src/painting/edge_insets.dart”）。
'边距'来自'package:flutter_html/src/style/margin.dart' ('/C:/src/flutter/.pub-cache/hosted/pub.dartlang.org/flutter_html-3.0.0- alpha.6/lib/src/style/margin.dart'）。保证金：EdgeInsets.zero， ^ lib/screens/post/blocks/core_paragraph.dart:30:26: 错误：参数类型“EdgeInsets”不能分配给参数类型“边距？”。
“EdgeInsets”来自“package:flutter/src/painting/edge_insets.dart”（“/C:/src/flutter/packages/flutter/lib/src/painting/edge_insets.dart”）。
'边距'来自'package:flutter_html/src/style/margin.dart' ('/C:/src/flutter/.pub-cache/hosted/pub.dartlang.org/flutter_html-3.0.0- alpha.6/lib/src/style/margin.dart'）。保证金：EdgeInsets.zero， ^ lib/screens/post/blocks/rehub_wc_box.dart:158:32: 错误：参数类型 'double?'无法分配给参数类型“double”，因为“double?”可以为 null 而 'double' 不是。字体大小：字体大小（字体大小）， ^ lib/screens/post/blocks/rehub_wc_box.dart:159:32：错误：无法将参数类型“EdgeInsets”分配给参数类型“边距？”。
“EdgeInsets”来自“package:flutter/src/painting/edge_insets.dart”（“/C:/src/flutter/packages/flutter/lib/src/painting/edge_insets.dart”）。
'边距'来自'package:flutter_html/src/style/margin.dart' ('/C:/src/flutter/.pub-cache/hosted/pub.dartlang.org/flutter_html-3.0.0- alpha.6/lib/src/style/margin.dart'）。保证金：EdgeInsets.zero， ^ lib/screens/post/blocks/rehub_wc_box.dart:170:54：错误：参数类型“EdgeInsets”不能分配给参数类型“边距？”。
“EdgeInsets”来自“package:flutter/src/painting/edge_insets.dart”（“/C:/src/flutter/packages/flutter/lib/src/painting/edge_insets.dart”）。
'边距'来自'package:flutter_html/src/style/margin.dart' ('/C:/src/flutter/.pub-cache/hosted/pub.dartlang.org/flutter_html-3.0.0- alpha.6/lib/src/style/margin.dart'）。 'p': styleTag.copyWith(margin: const EdgeInsets.only(left: secondItemPaddingSmall)), ^ lib/screens/post/blocks/rehub_wc_box.dart:182:38：错误：参数类型“EdgeInsets”不能分配给参数类型“边距？”。
“EdgeInsets”来自“package:flutter/src/painting/edge_insets.dart”（“/C:/src/flutter/packages/flutter/lib/src/painting/edge_insets.dart”）。
'边距'来自'package:flutter_html/src/style/margin.dart' ('/C:/src/flutter/.pub-cache/hosted/pub.dartlang.org/flutter_html-3.0.0- alpha.6/lib/src/style/margin.dart'）。保证金：EdgeInsets.zero， ^ lib/screens/post/blocks/html_text.dart:34:26: 错误：参数类型“EdgeInsets”不能分配给参数类型“边距？”。
“EdgeInsets”来自“package:flutter/src/painting/edge_insets.dart”（“/C:/src/flutter/packages/flutter/lib/src/painting/edge_insets.dart”）。
'边距'来自'package:flutter_html/src/style/margin.dart' ('/C:/src/flutter/.pub-cache/hosted/pub.dartlang.org/flutter_html-3.0.0- alpha.6/lib/src/style/margin.dart'）。保证金：EdgeInsets.zero， ^ lib/screens/post/blocks/html_text.dart:48:30: 错误：参数类型“EdgeInsets”不能分配给参数类型“边距？”。
“EdgeInsets”来自“package:flutter/src/painting/edge_insets.dart”（“/C:/src/flutter/packages/flutter/lib/src/painting/edge_insets.dart”）。
'边距'来自'package:flutter_html/src/style/margin.dart' ('/C:/src/flutter/.pub-cache/hosted/pub.dartlang.org/flutter_html-3.0.0- alpha.6/lib/src/style/margin.dart'）。保证金：EdgeInsets.zero， ^ lib/screens/post/blocks/html_text.dart:51:30: 错误：参数类型“EdgeInsets”不能分配给参数类型“边距？”。
“EdgeInsets”来自“package:flutter/src/painting/edge_insets.dart”（“/C:/src/flutter/packages/flutter/lib/src/painting/edge_insets.dart”）。
'边距'来自'package:flutter_html/src/style/margin.dart' ('/C:/src/flutter/.pub-cache/hosted/pub.dartlang.org/flutter_html-3.0.0- alpha.6/lib/src/style/margin.dart'）。保证金：EdgeInsets.zero， ^ lib/screens/post/blocks/html_text.dart:54:25：错误：无法将参数类型“EdgeInsets”分配给参数类型“边距？”。
“EdgeInsets”来自“package:flutter/src/painting/edge_insets.dart”（“/C:/src/flutter/packages/flutter/lib/src/painting/edge_insets.dart”）。
'边距'来自'package:flutter_html/src/style/margin.dart' ('/C:/src/flutter/.pub-cache/hosted/pub.dartlang.org/flutter_html-3.0.0- alpha.6/lib/src/style/margin.dart'）。保证金：const EdgeInsets.only（左：itemPaddingMedium）， ^ lib/screens/post/blocks/html_text.dart:56:40: 错误：参数类型“EdgeInsets”不能分配给参数类型“边距？”。
“EdgeInsets”来自“package:flutter/src/painting/edge_insets.dart”（“/C:/src/flutter/packages/flutter/lib/src/painting/edge_insets.dart”）。
'边距'来自'package:flutter_html/src/style/margin.dart' ('/C:/src/flutter/.pub-cache/hosted/pub.dartlang.org/flutter_html-3.0.0- alpha.6/lib/src/style/margin.dart'）。 'h1'：样式（边距：EdgeInsets.zero）， ^ lib/screens/post/blocks/html_text.dart:57:40: 错误：无法将参数类型“EdgeInsets”分配给参数类型“边距？”。
“EdgeInsets”来自“package:flutter/src/painting/edge_insets.dart”（“/C:/src/flutter/packages/flutter/lib/src/painting/edge_insets.dart”）。
'边距'来自'package:flutter_html/src/style/margin.dart' ('/C:/src/flutter/.pub-cache/hosted/pub.dartlang.org/flutter_html-3.0.0- alpha.6/lib/src/style/margin.dart'）。 'h2'：样式（边距：EdgeInsets.zero）， ^ lib/screens/post/blocks/html_text.dart:58:40: 错误：无法将参数类型“EdgeInsets”分配给参数类型“边距？”。
“EdgeInsets”来自“package:flutter/src/painting/edge_insets.dart”（“/C:/src/flutter/packages/flutter/lib/src/painting/edge_insets.dart”）。
'边距'来自'package:flutter_html/src/style/margin.dart' ('/C:/src/flutter/.pub-cache/hosted/pub.dartlang.org/flutter_html-3.0.0- alpha.6/lib/src/style/margin.dart'）。 'h3'：样式（边距：EdgeInsets.zero）， ^ lib/screens/post/blocks/html_text.dart:59:40: 错误：参数类型“EdgeInsets”不能分配给参数类型“边距？”。
“EdgeInsets”来自“package:flutter/src/painting/edge_insets.dart”（“/C:/src/flutter/packages/flutter/lib/src/painting/edge_insets.dart”）。
'边距'来自'package:flutter_html/src/style/margin.dart' ('/C:/src/flutter/.pub-cache/hosted/pub.dartlang.org/flutter_html-3.0.0- alpha.6/lib/src/style/margin.dart'）。 'h4'：样式（边距：EdgeInsets.zero）， ^ lib/screens/post/blocks/html_text.dart:60:40: 错误：参数类型“EdgeInsets”不能分配给参数类型“边距？”。
“EdgeInsets”来自“package:flutter/src/painting/edge_insets.dart”（“/C:/src/flutter/packages/flutter/lib/src/painting/edge_insets.dart”）。
'边距'来自'package:flutter_html/src/style/margin.dart' ('/C:/src/flutter/.pub-cache/hosted/pub.dartlang.org/flutter_html-3.0.0- alpha.6/lib/src/style/margin.dart'）。 'h5'：样式（边距：EdgeInsets.zero）， ^ lib/screens/post/blocks/html_text.dart:61:40: 错误：参数类型“EdgeInsets”不能分配给参数类型“边距？”。
“EdgeInsets”来自“package:flutter/src/painting/edge_insets.dart”（“/C:/src/flutter/packages/flutter/lib/src/painting/edge_insets.dart”）。
'边距'来自'package:flutter_html/src/style/margin.dart' ('/C:/src/flutter/.pub-cache/hosted/pub.dartlang.org/flutter_html-3.0.0- alpha.6/lib/src/style/margin.dart'）。 'h6'：样式（边距：EdgeInsets.zero）， ^ lib/screens/post/cmets.dart:266:42: 错误：无法将参数类型“EdgeInsets”分配给参数类型“边距？”。
“EdgeInsets”来自“package:flutter/src/painting/edge_insets.dart”（“/C:/src/flutter/packages/flutter/lib/src/painting/edge_insets.dart”）。
'边距'来自'package:flutter_html/src/style/margin.dart' ('/C:/src/flutter/.pub-cache/hosted/pub.dartlang.org/flutter_html-3.0.0- alpha.6/lib/src/style/margin.dart'）。 “身体”：样式（边距：EdgeInsets.zero）， ^ lib/screens/post/cmets.dart:267:34: 错误：无法将参数类型“EdgeInsets”分配给参数类型“边距？”。
“EdgeInsets”来自“package:flutter/src/painting/edge_insets.dart”（“/C:/src/flutter/packages/flutter/lib/src/painting/edge_insets.dart”）。
'边距'来自'package:flutter_html/src/style/margin.dart' ('/C:/src/flutter/.pub-cache/hosted/pub.dartlang.org/flutter_html-3.0.0- alpha.6/lib/src/style/margin.dart'）。 “p”：样式（边距：const EdgeInsets.only（顶部：11，底部：itemPaddingMedium））， ^

失败：构建失败，出现异常。

* 在哪里：脚本 'C:\src\flutter\packages\flutter_tools\gradle\flutter.gradle' 行：1159

* 什么地方出了错：任务 ':app:compileFlutterBuildRelease' 执行失败。 \> Process 'command 'C:\src\flutter\bin\flutter.bat'' 以非零退出值 1 完成

* 尝试：使用 --stacktrace 选项运行以获取堆栈跟踪。使用 --info 或 --debug 选项运行以获得更多日志输出。使用 --scan 运行以获得完整的见解。

在 2m 4s 内构建失败运行 Gradle 任务“assembleRelease”... 126.1s Gradle 任务 assembleRelease 失败，退出代码为 1

我更改了 flutter html 降级以解决同样的问题，但我无法解决它，请帮助我解决此问题。 lib/screens/post/cmets.dart:266:42: 错误：无法将参数类型“EdgeInsets”分配给参数类型“边距？”。

【问题讨论】：

标签： flutter entity-framework flutter-dependencies flutter-web

【解决方案1】：

请分享代码。不解释就帮不上忙。

【讨论】：