The example page fails to load

[jinyuanqing]

flutter3.0.1
vscode tips:
EXCEPTION CAUGHT BY WIDGETS LIBRARY
The following UnimplementedError was thrown building TextLine(dirty, dependencies:
[_QuillPressedKeysAccess], state: _TextLineState#c3c72):
Embeddable type "video" is not supported by default embed builder of QuillEditor. You must pass your
own builder function to embedBuilder property of QuillEditor or QuillField widgets.
The relevant error-causing widget was:
TextLine
google chrome tips:
Assertion failed:file:///xxxx/src/widgets/framework.dart:6243.12
renderObject.child--child is not true

[singerdmx]

This is fixed now