如何在NoFramework模块中使用angular6-json-schema-form对吗？

Question

我已经安装了angular6-json-schema-form。当我按照文档中的示例使用MaterialDesignFrameworkModule时，效果很好：

import { BrowserModule } from '@angular/platform-browser';
import { NgModule } from '@angular/core';

import { MaterialDesignFrameworkModule } from 'angular6-json-schema-form';

import { AppComponent } from './app.component';

@NgModule({
  declarations: [ AppComponent ],
  imports: [
    MaterialDesignFrameworkModule
  ],
  providers: [],
  bootstrap: [ AppComponent ]
})
export class AppModule { }

但是，当我使用NoFrameworkModule（在文档中也有描述）时，json-schema-form html元素停止工作。我收到此错误：

Uncaught Error: Template parse errors:
Can't bind to 'schema' since it isn't a known property of 'json-schema-form'.
1. If 'json-schema-form' is an Angular component and it has 'schema' input, then verify that it is part of this module.
2. If 'json-schema-form' is a Web Component then add 'CUSTOM_ELEMENTS_SCHEMA' to the '@NgModule.schemas' of this component to suppress this message.
3. To allow any property add 'NO_ERRORS_SCHEMA' to the '@NgModule.schemas' of this component. ("
  <json-schema-form
    loadExternalAssets="true"
    [ERROR ->][schema]="exampleJsonObject"
    framework="no-framework"
    [(ngModel)]="exampleJsonObject">
"): ng:///CatalogModule/DatagridComponent.html@3:4
'json-schema-form' is not a known element:
1. If 'json-schema-form' is an Angular component, then verify that it is part of this module.
2. If 'json-schema-form' is a Web Component then add 'CUSTOM_ELEMENTS_SCHEMA' to the '@NgModule.schemas' of this component to suppress this message. ("<p>
  [ERROR ->]<json-schema-form
    loadExternalAssets="true"
    [schema]="exampleJsonObject"

或者，当我删除[schema]属性时：

Uncaught Error: Template parse errors:
'json-schema-form' is not a known element:
1. If 'json-schema-form' is an Angular component, then verify that it is part of this module.
2. If 'json-schema-form' is a Web Component then add 'CUSTOM_ELEMENTS_SCHEMA' to the '@NgModule.schemas' of this component to suppress this message. ("<p>
  [ERROR ->]<json-schema-form
    loadExternalAssets="true"
    framework="no-framework">
"): ng:///CatalogModule/DatagridComponent.html@1:2

如何解决此问题？我在7.1.0版中使用该软件包。