材料设计组件“不是已知元素"在 Angular2 中 [英] Material design component "is not a known element" in Angular2

问题描述

我有一个混合的 Angular1 和 Angular2 应用程序.在我路由到的 Angular2 组件之一中，我想使用 Material Design 按钮.

I have a hybrid Angular1 and Angular2 application. In one of the Angular2 components that I route to, I want to use a Material Design Button.

当我像这样在模板中插入一个按钮时 foo 应用程序开始崩溃并显示此控制台消息

When I insert a button into the template like this <md-button>foo</md-button> the application starts crashing with this console message

Error: Template parse errors:
'md-button' is not a known element:
1. If 'md-button' is an Angular component, then verify that it is part of this module.
2. If 'md-button' is a Web Component then add "CUSTOM_ELEMENTS_SCHEMA" to the '@NgModule.schemas' of this component to suppress this message. ("<h1>Job</h1>[ERROR ->]<md-button>material</md-button>"): JobComponent@0:12
    at TemplateParser.parse (http://localhost:3000/node_modules/@angular/compiler/bundles/compiler.umd.js:8321:21)

所以，听起来可能是消息中的情况 1，但我已经尝试了 this answer 将 MdButton 添加到我的 NgModule 的 imports 属性(其中已包含 MaterialModule.forRoot() 根据 文档) 的建议，但如果确实如此，整个应用程序都变成空白，控制台中没有错误.

So, it might sound like it is case 1 in the message, but I have tried the advice given in this answer to add MdButton to the imports property of my NgModule (which already contained MaterialModule.forRoot() as adviced by the documentation) , but if I do, the whole application goes blank without errors in the console.

这里是一些相关的代码

import { UIRouterModule } from "ui-router-ng2";
import { Ng1ToNg2Module, uiRouterNgUpgrade } from "ui-router-ng1-to-ng2";

import { MaterialModule, MdButton } from '@angular/material';


const upgradeAdapter: UpgradeAdapter = new UpgradeAdapter(
    forwardRef(() => XamFlowNg2Module));

uiRouterNgUpgrade.setUpgradeAdapter(upgradeAdapter);

angular.module("xamFlow")
    .factory("consoleService",
    upgradeAdapter.downgradeNg2Provider(ConsoleService));


/*
 * Expose our ng1 content to ng2
 */
upgradeAdapter.upgradeNg1Provider("restService");

@NgModule({
    declarations: [
        JobComponent,
    ],
    entryComponents: [
        // Components that are routed to must be listed here, otherwise you'll get "No Component Factory"
        JobComponent,
    ],
    imports: [
        CommonModule,
        BrowserModule,
        FormsModule,
        HttpModule,
        Ng1ToNg2Module,
        MaterialModule.forRoot()
    ],
    providers: [
        ConsoleService,
        ImageService
    ]
})
class MyModule { }


upgradeAdapter.bootstrap(document.body, ["myApp"]);

推荐答案

应该是

<button md-button>foo</button>   

或

<button md-raised-button>foo</button>

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