ui.TextLeadingDistribution not found when running Flutter app on chrome or macos

When trying to run my app on chrome or macos after using dart migrate, I get this errors in the console:

Downloading Web SDK...                                           2,674ms
Launching lib/web/main.dev.dart on Chrome in debug mode...
Waiting for connection from debug service on Chrome...          
../../../.pub-cache/hosted/pub.dartlang.org/styled_text-3.0.1/lib/custom_style.dart:38:7: Error: Type 'ui.TextLeadingDistribution' not found.
      ui.TextLeadingDistribution? leadingDistribution,
      ^^^^^^^^^^^^^^^^^^^^^^^^^^
../../../.pub-cache/hosted/pub.dartlang.org/styled_text-3.0.1/lib/custom_style.dart:98:7: Error: Type 'ui.TextLeadingDistribution' not found.
      ui.TextLeadingDistribution? leadingDistribution,
      ^^^^^^^^^^^^^^^^^^^^^^^^^^
../../../.pub-cache/hosted/pub.dartlang.org/styled_text-3.0.1/lib/custom_style.dart:219:3: Error: Type 'ui.TextLeadingDistribution' not found.
  ui.TextLeadingDistribution? get leadingDistribution =>

It runs fine on the Android / iPhone emulators.
I tried the following but all in vain:

1. flutter 2.0.6 (stable)
2. flutter 2.5.3 (stable)
3. flutter doctor shows nothing wrong
4. flutter clean, flutter pub cache repair, flutter pub get
5. Restart VSCode

Actually, the issue was coming from the dependency styled_text.
I copied only the files that we needed from the repo and that solved the issue.