1
"@angular/cli": "1.0.0",
"@angular/compiler": "2.4.9",
"@angular/compiler-cli": "2.4.9",
"@angular/core": "2.4.9",
這是我的第一個中等大小的angular2項目，在嘗試部署到Heroku時出現以下錯誤。提供的參數不匹配呼叫目標的任何簽名。 Heroku部署
ERROR in /tmp/build_517db5365a6effb7ffc72a360964722f/src/$$_gendir/app/modules/messages/components/list-messages.component.ngfactory.ts (440,79): Supplied parameters do not match any signature of call target.
的package.json腳本：
"scripts": {
"ng": "ng",
"heroku-prebuild": "npm install -g http-server",
"heroku-postbuild": "ng build --prod",
"start": "http-server dist/",
"test": "ng test",
"lint": "ng lint",
"e2e": "ng e2e"
},
請注意，此錯誤只嘗試部署到Heroku的，運行時ng build --prod本地，我沒有得到同樣的錯誤，編譯完成時發生沒有錯誤。
我一直在尋找任何缺乏預期參數的函數，但組件太簡單了，我真的沒有看到它。
這裏是我的名單，messages.component.ts：
import { Component } from '@angular/core'
import { Router } from '@angular/router'
import { MessagesService } from '../services/messages.service'
@Component({
templateUrl: 'list-messages.component.html',
providers: [ MessagesService ],
styleUrls: ['./list-messages.component.css']
})
export class ListMessagesComponent {
public messages: any
public search_q: any
public errors: string
public success: string
public page: any
private total: number
private limit: any
constructor(public router: Router, private messageService: MessagesService) {}
ngOnInit() {
this.page = 0
this.limit = 20
this.messageService.getMessages(this.page, this.limit)
.subscribe(res => {
console.log(res)
if (res.status == 200 && res.data.length > 0) {
this.messages = res.data
this.total = res.total
} else {
this.errors = res.message || "Unable to complete operation"
}
})
}
/**
* On search event
*/
onSearch(query) {
this.search_q = query
}
deleteMessage(id) {
if (id) {
this.messageService.deleteMessage(id)
.subscribe(res => {
if (res.status == 200) {
this.messageService.getMessages(this.page, this.limit)
.subscribe(res => {
if (res.status == 200) {
this.success = "Message deleted"
this.messages = res.data
this.total = res.total
} else {
this.success = null
this.errors = res.message || "Unable to get messages"
}
})
}
})
} else {
this.success = null
this.errors = "Unknown message"
}
}
// -------- PAGINATION ------- //
/**
* Loads next page
*
*/
nextPage() {
this.page += 1
this.messageService.getMessages(this.page, this.limit)
.subscribe(res => {
if (res.status == 200) {
this.success = null
this.errors = null
this.messages = res.data
this.total = res.total
}
})
}
/**
* Checks if there is a next page
*/
hasNextPage() {
return this.page * this.limit < this.total && this.messages.length == this.limit
}
/**
* Loads previous page
*
*/
prevPage() {
if (this.page > 0) {
this.page -= 1
this.messageService.getMessages(this.page, this.limit)
.subscribe(res => {
if (res.status == 200) {
this.success = null
this.errors = null
this.messages = res.data
this.total = res.total
}
})
}
}
/**
* Checks if there is a previous page
*
*/
hasPrevPage() {
return this.page >= 1
}
}
，這裏是我的messages.service.ts（以防萬一）：
import { Injectable } from '@angular/core'
import { Http, Headers, RequestOptions, URLSearchParams } from '@angular/http'
import { Observable } from 'rxjs/Observable'
import { environment } from '../../../../environments/environment'
import 'rxjs/add/observable/throw'
import 'rxjs/add/operator/map'
import 'rxjs/add/operator/catch'
@Injectable()
export class MessagesService {
private baseUrl:string
private currentUser:any
private token:string
private headers:Headers
constructor(private http: Http){
this.http = http
this.baseUrl = environment.api_url
this.currentUser = JSON.parse(localStorage.getItem('current-user'))
this.token = JSON.parse(localStorage.getItem('auth-token'))
this.headers = new Headers()
this.headers.append("Accept", "application/json")
this.headers.append("Content-Type", "application/json")
this.headers.append("x-user-id", this.currentUser._id)
this.headers.append("x-access-token", this.token)
}
/**
* Retrieves all messages
*/
getMessages(page?:string, limit?:string) {
let queryParam = new URLSearchParams()
queryParam.set('page', page)
queryParam.set('limit', limit)
let options = new RequestOptions({ headers: this.headers, search: queryParam })
return this.http.get(this.baseUrl + '/messages', options)
.map(res => res.json())
.catch(this.errorHandler)
}
/**
* Delete a specific message
* @param id
*/
deleteMessage(id) {
this.headers.delete('x-message-id')
this.headers.append('x-message-id', id)
let options = new RequestOptions({headers: this.headers})
return this.http.delete(this.baseUrl + '/messages', options)
.map(res => res.json())
.catch(this.errorHandler)
}
/**
* Error handler for all operations
* @param {Object} error
*/
errorHandler(error) {
return Observable.throw(error.json().error || 'Server Error')
}
}
而我的列表messages.component。 html：
<div class="row">
<div class="col-lg-12">
<div *ngIf="errors" class="error-container col-md-6">
<div class="card card card-inverse card-danger">
<div class="card-header">
Error
</div>
<div class="card-block">
<p>{{ errors }}</p>
</div>
</div>
</div>
<div *ngIf="success" class="error-container col-md-12">
<div class="card card card-inverse card-primary">
<div class="card-header">
Success
</div>
<div class="card-block">
<p>{{ success }}</p>
</div>
</div>
</div>
<div class="card" *ngIf="messages">
<div class="card-header">
<i class="fa fa-search"></i> Search
</div>
<div class="card-block">
<input type="text" class="form-control" name="search_q" [(ngModel)]="search_q" (ngModelChange)="onSearch($event)">
</div>
</div>
<div class="card" *ngIf="messages">
<div class="card-header">
<i class="fa fa-align-justify"></i> All Messages
<span class="total-count pull-right"> {{ total }}</span>
</div>
<div class="card-block">
<table class="table table-condensed">
<thead>
<tr>
<th> ID </th>
<th> Email </th>
<th> Message </th>
<th> Date sent </th>
<th> Actions </th>
</tr>
</thead>
<tbody>
<tr *ngFor="let message of messages | messageFilter:search_q">
<td>{{ message._id }}</td>
<td>{{ message.email }}</td>
<td>{{ message.message | truncate :15 }}</td>
<td>{{ message.date_sent | date: 'dd/MM/yyyy' }}</td>
<td>
<a href="mailto:{{ message.email }}" class="btn btn-primary">Respond</a>
<button class="btn btn-danger" (click)="deleteMessage(message._id)"> Delete </button>
</td>
</tr>
</tbody>
</table>
<div class="pagination pull-right">
<button class="pagination-button" id="prev-page" (click)="prevPage()" [disabled]="!hasPrevPage()">Prev</button>
<button class="pagination-button" id="next-page" (click)="nextPage()" [disabled]="!hasNextPage()">Next</button>
</div>
</div>
</div>
</div>
</div>
任何想法或建議都非常受歡迎。
謝謝！
錯誤指示問題是'list-messages.component.ngfactory.ts'文件行440.從那裏發佈代碼。 – Saravana
這是在編譯時由角度生成的文件。我希望我可以訪問該文件，它會讓一切變得更加容易！ –