Php 致命错误：无法重新声明<；方法>；

我得到以下错误：

致命错误：无法在第2617行的/home/xxxxxxxxx/public\u html/vqmod/vqcache/vq2-system\u storage\u modification\u admin\u controller\u sale\u order.php中重新声明ControllerSaleOrder:：saveValue（）

代码如下：

public function saveValue() {
  $json = array();
  if ($this->request->server['REQUEST_METHOD'] == 'POST') {
    $post = $this->request->post;
    $this->load->model('sale/order');
    $json['msg'] = $this->model_sale_order->saveNewValue($post);
  }
  $this->response->addHeader('Content-Type: application/json');
  $this->response->setOutput(json_encode($json));
}

public function install() {
  if ($this->request->server['REQUEST_METHOD'] == 'POST') {
    $this->load->model('sale/order');
    $json['success'] = $this->model_sale_order->install();
  }
  $this->response->addHeader('Content-Type: application/json');
  $this->response->setOutput(json_encode($json));
}

---

在vq2-系统\存储\修改\管理\控制器\销售\订单中。‌​php有两个名为saveValue（）的方法。重命名一个

请共享您的完整代码。可能重复