widget.isAlwaysShown ?? _scrollbarTheme.isAlwaysShown ?? false;

[alexanselm17]

../../../.pub-cache/hosted/pub.dev/boardview-0.2.2/lib/vs_scrollbar.dart:143:5: Error: No named parameter with the name 'isAlwaysShown'.
isAlwaysShown: isAlwaysShown,
^^^^^^^^^^^^^
../../../.pub-cache/hosted/pub.dev/boardview-0.2.2/lib/vs_scrollbar.dart:174:14: Error: The getter 'isAlwaysShown' isn't defined for the class '_MaterialScrollbar'.

• '_MaterialScrollbar' is from 'package:boardview/vs_scrollbar.dart' ('../../../.pub-cache/hosted/pub.dev/boardview-0.2.2/lib/vs_scrollbar.dart').
  Try correcting the name to the name of an existing getter, or defining a getter or field named 'isAlwaysShown'.
  widget.isAlwaysShown ?? _scrollbarTheme.isAlwaysShown ?? false;
  ^^^^^^^^^^^^^
  ../../../.pub-cache/hosted/pub.dev/boardview-0.2.2/lib/vs_scrollbar.dart:174:47: Error: The getter 'isAlwaysShown' isn't defined for the class 'ScrollbarThemeData'.
• 'ScrollbarThemeData' is from 'package:flutter/src/material/scrollbar_theme.dart' ('../../../snap/flutter/common/flutter/packages/flutter/lib/src/material/scrollbar_theme.dart').
  Try correcting the name to the name of an existing getter, or defining a getter or field named 'isAlwaysShown'.
  widget.isAlwaysShown ?? _scrollbarTheme.isAlwaysShown ?? false;
  ^^^^^^^^^^^^^
  Target kernel_snapshot failed: Exception

FAILURE: Build failed with an exception.

• Where:
  Script '/home/anselm/snap/flutter/common/flutter/packages/flutter_tools/gradle/src/main/groovy/flutter.groovy' line: 1297

• What went wrong:
  Execution failed for task ':app:compileFlutterBuildDebug'.

Process 'command '/home/anselm/snap/flutter/common/flutter/bin/flutter'' 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

[g14wx]

By the moment, the only way to make this works again is to modify manually the library, It's not recommended, I know, but if you want to make it works ASAP, then you just have to update this file

In line 143, you have to replace the isAlwaysShown property from the super constructor to thumbVisibility

Then in line 173, you have to do this tweak:

  bool get showScrollbar =>
      widget.thumbVisibility ?? _scrollbarTheme.thumbVisibility?.resolve(Set.of([MaterialState.disabled])) ?? false;

and you are done, it will let you build your ABB or APK normally at least for your local env

[cunha-ambisis]

@jakebonk Can't release a new version 0.23 with just this fix?
New versions of flutter break this library, and I want to update my flutter version, and this lib is not allowing me to.
I can do the PR, but is literally 2 lines of code to change.