Angular 角度自定义组件修饰符中断URL

我想扩展ng组件装饰器来设置默认配置。找到了一种简单的方法来定义自定义一个，并在其中调用ng一个。 不幸的是，使用自定义装饰器似乎破坏了html模板和css/scss URL

MyComponent.ts

import { Component, forwardRef, TypeDecorator } from "@angular/core";
line-list.component";

export function MyComponent(annotation: Component) {

    return (target: Function) => {
        let ngCompDef;

        //add 'automatic' metadata
        annotation.providers = annotation.providers || [];
        annotation.providers.push(
            {
                provide: WorkflowableComponent,
                useExisting: forwardRef(()=>target)
            }
        )

        //link to ng Component decorator f.
        ngCompDef = Component(annotation);
        ngCompDef(target);
    }

}

@MyComponent({
    selector: 'acomponent',
    template: LIST_PAGE_BASE_TEMPLATE, //using 'inline' templates works
    styleUrls: ['./a-component.scss'] //referencing 'external' resources does not work
})
export class AComponent extends ListPageBase<ItemCheckLine>
    implements OnInit {
...

a-component.ts

import { Component, forwardRef, TypeDecorator } from "@angular/core";
line-list.component";

export function MyComponent(annotation: Component) {

    return (target: Function) => {
        let ngCompDef;

        //add 'automatic' metadata
        annotation.providers = annotation.providers || [];
        annotation.providers.push(
            {
                provide: WorkflowableComponent,
                useExisting: forwardRef(()=>target)
            }
        )

        //link to ng Component decorator f.
        ngCompDef = Component(annotation);
        ngCompDef(target);
    }

}

@MyComponent({
    selector: 'acomponent',
    template: LIST_PAGE_BASE_TEMPLATE, //using 'inline' templates works
    styleUrls: ['./a-component.scss'] //referencing 'external' resources does not work
})
export class AComponent extends ListPageBase<ItemCheckLine>
    implements OnInit {
...

@MyComponent({
选择器：“acomponent”，
模板：LIST\u PAGE\u BASE\u模板，//使用“inline”模板很有效
styleUrls:['./a-component.scss']//引用“外部”资源无效
})
导出类组件扩展ListPageBase
实现OnInit{
...

引发的错误是： 错误：未捕获（承诺中）：加载a-component.styles.scss失败 在resolvePromise（zone.js:852）

---

谢谢。

使用angular 8.2和angular cli 8.2