我在离子应用程序中遇到错误

Question

这是我面临的错误： ＆＃34; home.ts:40错误：SyntaxError：意外的令牌{在位置2和＃34的JSON中;

我使用API​​从数据库中获取列表中的数据。 home.ts中的第40行是err =＆gt; {                   console.error（＆＃34;错误：＆＃34; +错误）;                 }，

home.ts：

constructor(public navCtrl: NavController, public navParams : NavParams, public http:Http, public loadingCtrl: LoadingController, private httpProvider:HttpProvider) {
        this.user_id = this.navParams.get('user_id');
        this.distributor_id = this.navParams.get('distributor_id');
        this.getdata(this.user_id, this.distributor_id);  
      }
        getdata(user_id, distributor_id){
          this.httpProvider.getAllData(user_id, distributor_id).subscribe(
            result => {
              this.newsData=result.complaint;

              console.log("Success : "+this.newsData);
            },
            err =>{
              console.error("Error : "+err);
            } ,
            () => {
              console.log('getData completed');
            }
          );

        }

http.ts：

getAllData(user_id, distributor_id){
    var headers = new Headers();
    headers.append('Content-Type', 'application/x-www-form-urlencoded');
    let options = new RequestOptions({headers: headers});

    let postParams ='&fse_id=' + user_id + '&distributor_id=' + distributor_id;
    console.log(postParams);
    return this.http.post("http://www.btedge.appexperts.net/Ionic_Webservices/type.php", JSON.stringify(postParams), options).map(res => res.json());
  }
}