Argument vom Typ '{header:Kopfzeile;}' ist nicht zuweisbare parameter des Typs "RequestOptionsArgs'

Im Immer folgende Fehlermeldung beim Versuch, den pass-header in HTTP.POST/GET Anfrage Argument of type '{header:Header;}' is not assignable to parameter of type 'RequestOptionsArgs'. Property 'null' is missing in the type '{header:Header;}'

Ich habe versucht viele Lösungen, aber keine Sperre.

hier mein code :

import { Injectable } from '@angular/core';
import { Response, RequestOptions, Headers, Http, URLSearchParams} from '@angular/http';
import { Observable, Subject } from 'rxjs/Rx';  
import {Company} from './companyMaster';
import 'rxjs/add/operator/map';
import "rxjs/Rx";
import 'rxjs/add/operator/toPromise';
import {CommonService} from '../../common.service';
@Injectable()
export class CompanyMasterService {
private GetListActionUrl: string;
private AddEditActionUrl: string;
public headers = new Headers({ 'Content-Type': 'application/json' });
public options = new RequestOptions({ headers: this.headers });
commonService: CommonService;
constructor(private _http: Http) {
    this.commonService = new CommonService();
    this.GetListActionUrl = this.commonService.RootURL + 'Company/GetList';
    this.AddEditActionUrl = this.commonService.RootURL + "Company/AddEdit";
}

private RegenerateData = new Subject<number>();
//Observable string streams
RegenerateData$ = this.RegenerateData.asObservable();

GetList(): Promise<Company[]> {
    return this._http.get(this.GetListActionUrl + "?branchId=" + this.commonService.BranchId)
        .toPromise()
        .then(response => this.extractArray(response))
        .catch();
}

AddEdit(company: Company): any {
    let headers = new Headers({ 'content-type': 'application/json' });
    let body = JSON.stringify({
        'BRANCH_ID': company.BRANCH_ID.toString(),
        'COMPANY_ID': company.COMPANY_ID != null ? company.COMPANY_ID.toString() : null, 'COMPANY_NAME': company.COMPANY_NAME
    });
    let options = new RequestOptions({ headers: headers});

   return this._http.post(this.AddEditActionUrl, body, options)
        .toPromise()
        .then(response => this.extractArray(response))
        .catch();
}

protected extractArray(res: Response, showprogress: boolean = true) {
    let data = res.json();

    return data || [];
}

private getHeaders() {
    //I included these headers because otherwise FireFox
    //will request text/html instead of application/json
    let headers = new Headers();
    headers.append('Accept', 'application/json');
    return headers;
}

}

Siehe oben code, den ich bestanden haben, die header-Methode AddEdit (), aber es zeigt oben genannten Fehler habe ich versucht viele Lösung wie :

• Update-Paket
• Importierten @eckig/http
• Versucht, verschiedene Weg, um header übergeben
  Habe versucht, diese Lösung

habe ich angehängte screenshot zeigt Fehler in Visual studio-IDE. Siehe Anhang Fehler-screenshot
Antworten Sie bitte so bald wie möglich.

Paket.json

{
  "name": "sb-admin-angular4-bootstrap4",
  "version": "1.0.0",
  "license": "MIT",
  "scripts": {
    "ng": "ng",
    "start": "ng serve --ec=true",
    "build": "ng build --prod",
    "gitbuild": "ng build --prod --base='/start-angular/SB-Admin-BS4-Angular-4/master/dist/'",
    "test": "ng test",
    "lint": "ng lint",
    "e2e": "ng e2e"
  },
  "private": true,
  "dependencies": {
    "@angular/common": "^4.0.0",
    "@angular/compiler": "^4.0.0",
    "@angular/core": "^4.0.0",
    "@angular/forms": "^4.0.0",
    "@angular/http": "^4.0.0",
    "@angular/platform-browser": "^4.0.0",
    "@angular/platform-browser-dynamic": "^4.0.0",
    "@angular/router": "^4.0.0",
    "@ng-bootstrap/ng-bootstrap": "^1.0.0-alpha.25",
    "@ngx-translate/core": "^6.0.1",
    "@ngx-translate/http-loader": "0.0.3",
    "core-js": "^2.4.1",
    "font-awesome": "^4.7.0",
    "ionicons": "^3.0.0",
    "ng2-charts": "^1.5.0",
    "rxjs": "^5.1.0",
    "typing": "^0.1.9",
    "zone.js": "^0.8.4"
  },
  "devDependencies": {
    "@angular/cli": "^1.1.3",
    "@angular/compiler-cli": "^4.0.0",
    "@types/jasmine": "2.5.38",
    "@types/node": "~6.0.60",
    "codelyzer": "~2.0.0",
    "jasmine-core": "~2.5.2",
    "jasmine-spec-reporter": "~3.2.0",
    "karma": "~1.4.1",
    "karma-chrome-launcher": "~2.0.0",
    "karma-cli": "~1.0.1",
    "karma-coverage-istanbul-reporter": "^0.2.0",
    "karma-jasmine": "~1.1.0",
    "karma-jasmine-html-reporter": "^0.2.2",
    "karma-phantomjs-launcher": "^1.0.4",
    "protractor": "~5.1.0",
    "ts-node": "~2.0.0",
    "tslint": "~4.5.0",
    "typescript": "~2.2.0",
    "webpack": "^3.0.0"
  }
}

InformationsquelleAutor Gawade Pavan | 2017-06-24