我收到此错误：

ERROR Error: Uncaught (in promise): TypeError: value.forEach is not a function
TypeError: value.forEach is not a function
    at FormArray.patchValue.

我正在从Laravel获取数据，希望这些数据显示在FormArray中。
我的代码如下所示：

this.http.get("http://data_dink" + '/' + event.value)
 .toPromise().then(data => 
 {
    console.log(data);
    this.getSelectedServiceData = data;
    console.log(this.getSelectedServiceData.service);
    this.addForm.get('services').patchValue(this.getSelectedServiceData.service);
 });

data变量（get请求的响应）有这样的对象：

{
   "msg":"Service Information",
   "service":{
      "id":1,
      "name":"Web Development",
      "description":"Test per web development",
      "price":"200.00",
      "created_at":"2020-05-04T03:07:28.000000Z",
      "updated_at":"2020-05-06T03:07:28.000000Z",
      "view_service":{
         "href":"api\/v1\/service\/1",
         "method":"GET"
      }
   }
}

从此对象生成的FormArray：

{
   "msg":"List of all services",
   "services":[
      {
         "id":1,
         "name":"Web Development",
         "description":"Test per web development",
         "price":"200.00",
         "created_at":"2020-05-04T03:07:28.000000Z",
         "updated_at":"2020-05-06T03:07:28.000000Z"
      },
      {
         "id":2,
         "name":"Java",
         "description":"test per java",
         "price":"100.00",
         "created_at":"2020-05-20T03:07:57.000000Z",
         "updated_at":"2020-05-20T03:07:57.000000Z"
      }
   ]
}