The argument type 'EdgeInsets' can't be assigned to the parameter type 'Margins?'


My flutter project used to run fine but after I update my flutter sdk to 3.3.4 I am getting two errors and couldn’t compile the project.

The argument type ‘EdgeInsets’ can’t be assigned to the parameter type

                      child: Html(
                        data: article.title,
                        style: {
                          'body': Style(
                            fontSize: _articleTileFont(context),
                            lineHeight: const LineHeight(1.4),
                            fontWeight: FontWeight.bold,
                            maxLines: 3,
                            textOverflow: TextOverflow.ellipsis,

I am using in multiple files but it is always throwing a error after I have updated.

EdgeInsets Error

Another Error I am getting is:

The constructor being called isn’t a const constructor.

FontSize _articleTileFont(BuildContext context) {
    if (Responsive.isMobile(context)) {
      return const FontSize(25);
    } else if (Responsive.isTabletPortrait(context)) {
      return const FontSize(48);
    } else if (Responsive.isTablet(context)) {
      return const FontSize(65);
    } else {
      return const FontSize(25);

The constructor being called isn't a const constructor.

There is the same error on many pages. Please help me.


You can just remove the const wherever it complains about it. And you can replace




These are changes in the flutter_html package that you are using

Answered By – Ivo

This Answer collected from stackoverflow, is licensed under cc by-sa 2.5 , cc by-sa 3.0 and cc by-sa 4.0

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