NotWidgetException in example

[Jonbeckas]

I have this issue: when I try to run the example on Flutter 2.5.2.

Does somebody know what this means?

════════ Exception caught by widgets library ═══════════════════════════════════ The following NotWidgetException was thrown building XmlLayout(dirty, state: XmlLayoutState#e2833): Instance of 'NotWidgetException'

The relevant error-causing widget was XmlLayout lib\main.dart:119 When the exception was thrown, this was the stack C:/b/s/w/ir/cache/builder/src/out/host_debug/dart-sdk/lib/internal/js_dev_runtime/private/ddc_runtime/errors.dart 251:49 throw packages/xml_layout/xml_layout.dart 256:7 build packages/flutter/src/widgets/framework.dart 4782:27 build packages/flutter/src/widgets/framework.dart 4665:15 performRebuild

[wahabsohail]

I'm facing the same issue in flutter 2.10.4.

════════ Exception caught by widgets library═══════════════════════════════════ The following NotWidgetException was thrown building XmlLayout(dirty, state: XmlLayoutState#36856): Instance of 'NotWidgetException'

The relevant error-causing widget was XmlLayout lib\main.dart:113 When the exception was thrown, this was the stack