harmonyos运行时报错`Error message:NotifyCallback is not initialized`是什么原因？

Question

报错日志：

rror name:ReferenceError
06-04 16:39:36.058   24178-24178  C01305/Appkit                  pid-24178             E     Error message:NotifyCallback is not initialized
06-04 16:39:36.058   24178-24178  C01305/Appkit                  pid-24178             E     SourceCode:
06-04 16:39:36.058   24178-24178  C01305/Appkit                  pid-24178             E     export class TopBarNotifyCallback<T> extends NotifyCallback<T> {
06-04 16:39:36.058   24178-24178  C01305/Appkit                  pid-24178             E                                                  ^
06-04 16:39:36.058   24178-24178  C01305/Appkit                  pid-24178             E     Stacktrace:
06-04 16:39:36.058   24178-24178  C01305/Appkit                  pid-24178             E     SourceMap is not initialized yet
06-04 16:39:36.058   24178-24178  C01305/Appkit                  pid-24178             E         at func_main_0 (entry/build/default/cache/d

代码：

export class NotifyCallback<T> {
  notifyUpdate?: (data: T) => void
}
export class MyNotifyCallback<T> extends NotifyCallback<T> {
  bean?: Bean;
}

Answer 1

这种错误一般是循环依赖导致的，MyNotifyCallback和NotifyCallback定义在两个ets文件中，又互相import导致报错。