Angular 2 error: Unhandled Promise rejection: Template parse errors: More than one component:
<p>I developed a an Angular2 application using the old beta a few months back> I am currently moving this other to a fresh build of the newest (RC5 version) so far with no hitches. That was until I have been getting the following error:</p>

<pre><code>zone.js:484 Unhandled Promise rejection: Template parse errors:
More than one component: ProductComponent,OverlayComponent ("'noscroll': hideBody}"&gt;
</code></pre>

<p>I have a sub-component product-component which is included as a sub-component of app-component. I include both of these in the app.module.ts fle.</p>

<p>I am not sure what this error means and can find no support for this yet online. Here are the relevant files:</p>

<p>app.module.ts</p>

<pre><code>import './rxjs-extensions';

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

import { AppComponent }   from './app.component';
import { ProductComponent }   from './components/product.component';
import { OverlayComponent }   from './components/overlay-component';

import { ProductService }   from './services/product.service';
import { CategoryService }   from './services/category.service';
import { Breadcrumb} from "./directives/breadcrumb";
import { CategoryTree } from "./directives/category-tree";
import { Files } from "./directives/files";
import { Gallery } from "./directives/gallery";
import { OrderInformation } from "./directives/order-information";




@NgModule({
    imports:      [
        BrowserModule,
        HttpModule
    ],
    declarations: [
        AppComponent,
        ProductComponent,
        OverlayComponent,
        Breadcrumb,
        CategoryTree,
        Files,
        Gallery,
        OrderInformation
    ],
    providers: [
        ProductService,
        CategoryService
    ],
    bootstrap:    [ AppComponent ]

})
export class AppModule { }
</code></pre>

<p>app.component.ts</p>

<pre><code>import { Component } from '@angular/core';
import { Product } from "./classes/Product";
import { ProductService } from "./services/product.service";
import { Category } from "./classes/Category";
import { CategoryService } from "./services/category.service";

@Component({
    selector: 'product-display',
    templateUrl: './app/views/main-view.html'
})

export class AppComponent {
    title = `St. David's Poultry Supplies`;
    menuLoaded = false;
    hideBody = false;
    productsLoaded = false;
    categories = [];
    selectedCategory = null;
    selectedProduct = Product;
    breadcrumbCategories = [];
    products = [];
    APIError = [];

    constructor(
        private _productService: ProductService,
        private _categoryService: CategoryService
    ) {

    }

    getProducts(categoryId = 0) {
        var payload = {
            order           : 'asc',
            order_by        : 'title',
            category_id     : categoryId,
            resize          : true,
            imgHeight       : 200,
            imgWidth        : 200
        };

        this._productService.getProducts(payload)
            .subscribe(
                products =&gt; {this.products = products},
                error    =&gt; {this.APIError = error},
                ()       =&gt; {this.productsLoaded = true}
            );
    }

    getCategories() {
        this.productsLoaded = false;
        this._categoryService.getCategories({
            order           : 'asc',
            order_by        : 'name',
            parent_id       : 0,
            //sub_cats        : true,
            //group_by_parent : true
        })
            .subscribe(
                categories =&gt; {this.categories = categories},
                error      =&gt; {this.APIError = error},
                ()         =&gt; {
                    this.menuLoaded = true,
                        this.productsLoaded = true
                }
            );
    }

    selectCategory(category: Category) {
        this.selectedCategory = category;
        this.breadcrumbCategories.push(category);
    }
    resetFilters() {
        this.getProducts();
        this.getCategories();
        this.selectedCategory = null;
        this.selectedProduct = null;
    }
    private changeCategory(category: Category):void {
        this.productsLoaded = false;
        this.selectCategory(category);
        this.getProducts(category.id);
    }

    ngOnInit() {
        this.getCategories();
        this.getProducts();
    }
}
</code></pre>

<p>product.component.ts</p>

<pre><code>import { Component, Input } from '@angular/core';

import { Product } from "../classes/Product";
import { Category } from "../classes/Category";
import { ProductService } from "../services/product.service";

@Component({
    selector: 'product-view',
    templateUrl: './app/views/product-view.html'
})

export class ProductComponent {
    @Input() products: Product[];
    @Input() selectedCategory: Category;
    selectedProduct: Product;
    contentLoaded = false;
    title = "product viewer";
    APIError = [];

    constructor(
        private _productService: ProductService
    ) {
        _productService.emitter.subscribe(
            product  =&gt; {
                this.selectedProduct = product;
                this.contentLoaded = true
            }
        );
    }

    selectProduct(product) {
        this.selectedProduct = product;
        this._productService.emitProduct(this.selectedProduct);
    }

    ngAfterContentInit() {
        this.contentLoaded = true;
    }

    private changeSelectedProduct(product, callback) {
        this.selectedProduct = product;
    }
}
</code></pre>

<p>There was no problem with this before and I am stumped as to why this error is occurring. Can anyone point me in the right direction?</p>

<p>Thanks</p>