AngularJS 2错误未定义的索引1

Question

我试图实现MeanStack项目，当我试图打按钮更新我得到这个错误： 错误：请求的路径包含未定义的段索引1

有是更新服务

updateLocation(id, data) { 
    return new Promise((resolve, reject) => { 
     this.http.put('https://exemple.herokuapp.com/api/A/'+id, data) 
      .map(res => res.json()) 
      .subscribe(res => { 
      resolve(res); 
      }, (err) => { 
      reject(err); 
      }); 
    }); 
    } 

的HTML

<form (submit)="onEditSubmit()"> 

而且component.ts

onEditSubmit() { 
    this.locationService.updateLocation(this.id,this.location).then((result) => { 
     let id = result['_id']; 
     this.router.navigate(['locations/', id]); 
    }, (err) => { 
     console.log(err); 
    }); 
    } 

Answer 1

更换this.router.navigate(['locations/', id]);到this.router.navigate(['/locations', id]);