我在 vForm PUT 更新模型（laravel 中的后端）的承诺响应方面遇到问题。

响应代码是 200（好的，已更新）并且模型已更新，但我不知道为什么我在 catch 中出现“response.data”错误。“.then()”中没有错误并且代码运行正常。

编辑

使用 vForm 的服务更新功能 (vue)。updateService(){ this.$Progress.start();

        this.service.put('api/service/' + this.service.id)
        .then( function (response) {

          Toast.fire({
            type: 'success',
            title: response.data['Response']
          });

          this.$Progress.finish();

        })
        .catch( function (response) {
          console.log(response);
          Swal.fire("Error!", response.data['Response'], "warning");
          this.$Progress.fail();

        });

        this.$events.$emit('ServiceInform');
      },

后端功能（laravel）。

public function update(Request $request, Service $service)
{
    $this->validate($request, [
        'id_customers'      => 'required|int',
        'date'              => 'required|date',
        'id_technicians'    => 'required|int',
        'location'          => 'required|string',
        'details'           => 'required|string'
    ]);

    if ($request['id_technicians'] !== $service['id_technicians']) {
        $assignated_by = Auth::user()->id;
        $assigned_date = date('Y-m-d H:i:s');
    } else {
        $assignated_by = $service['assignated_by'];
        $assigned_date = $service['assigned_date'];
    }

    if ($request['id_technicians'] == 0) {
        $state = 'P';
    } else {
        $state = 'I';
    }

    $service->date              = $request['date'];
    $service->id_technicians    = $request['id_technicians'];
    $service->location          = $request['location'];
    $service->details           = $request['details'];
    $service->assigned_date     = $assigned_date;
    $service->assigned_by       = $assignated_by;
    $service->state             = $state;

    try {

        $service->save();

        return Response::json([
            'Response' => 'Servicio actualizado.'
        ], 201);

    } catch (Exception $e) {
        return Response::json([
            'Response' => 'No se actualizó el servicio.'
        ], 422);
    }
}