angular - 错误 : Template parse errors: Can't bind to 'myProperty' since it isn't a known property of 'myComponent'

Question

从 Angular 2.1.0 升级到 2.4.3 并将 webpack 从 2.1.0-beta.25 升级到 2.2.0-rc.4 后，如果我运行我的 webapp(构建工作正常，没有错误)，我会收到此错误:

Error: Template parse errors: Can't bind to 'center' since it isn't a known property of 'placeFilter'. 

目前我有一个像这样的中央模型(是的，我知道 :-) 之后我会更改它):

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

    import { AppRoutingModule } from './app.routes';

    ...
    import {MapComponent} from './map/map/map.component';
   ...
    import {PlaceFilterComponent} from './map/shared/components/placeFilter.component';
    ...

    @NgModule({
        imports: [BrowserModule, AppRoutingModule, FormsModule, HttpModule],
        declarations: [...
            MapComponent,
           ...
            PlaceFilterComponent,
            ...
        ],
        bootstrap: [AppComponent]
    })

    export class AppModule { }

我的 MapComponent 包含一个名为 PlaceFilterComponent 的子组件:

import { Component, OnInit, OnDestroy, Input, Output, NgZone  } from '@angular/core';
import { ActivatedRoute, Params, Router} from '@angular/router';
import {Subscription} from "rxjs";
import {TimerObservable} from "rxjs/observable/TimerObservable";

import services

import models

@Component({
    selector: 'emersy-content',
    templateUrl: './map.component.html',
    providers: [myServices]
})

export class MapComponent implements OnInit, OnDestroy {
...

    constructor(private placeService: PlaceService, private externalService: ExternalServiceService, private zone: NgZone, private route: ActivatedRoute, private router: Router) {
        ...

        });
    }

   ...
}

这是我的 MapComponentTemplate:

<div class="filterbox-map" *ngIf="!onlyMap">
    <place-filter (onSearchLocationChange)="searchLocationChange($event)" (onShowSideBarButtonClick)="showSideBarButtonClick()" [center]="center" [searchTerm]="searchTerm"></place-filter>
</div>

我的 PlaceFilter 组件是这样制作的:

import { Component, OnInit, Input, Output, EventEmitter, ViewChild } from '@angular/core';

import {Center} from '../models/center'

declare var google: any;

@Component({
    selector: 'place-filter',
    templateUrl: './placeFilter.component.html'
})

export class PlaceFilterComponent {
...
    private _center: Center;    
    get center() {
        return this._center;
    }
    @Input() set center(center: Center) {
        this._center = center;
    }



    constructor() {

    } 
...
}

我的文件夹结构是这样的:

app
L app.module.ts
L map
 L map
 | L map.component.ts
 | L map.component.html
 L shared
  L components
    L placefilter.component.ts
    L placefilter.component.html

Answer 1

export class PlaceFilterComponent {
...
    private _center: Center;    
    get center() {
        return this._center;
    }
    // try like this 
    @Input() center:Center;



    constructor() {

    } 
...
}