type 'DynamicMirrorImpl' is not a subtype of type 'ClassMirror' in type cast

[ShiyaoH]

The package works fine before but I suddenly got this error when compiling. It complains about the type casting on source code: "ClassMirror currentClassMirrorForType = reflector.reflectType(T) as ClassMirror; //TODO: Messy solution :(" in ck_field_type.dart file. Please help. I am using dart version 2.17.5 (stable) on mac.