Arduino UNO wifi使用Wifi配置更改我的DNS

Question

我正在尝试设置我的Arduino UNO wifi的DNS地址，但编译器返回＆＃39; IPAddress＆＃39;没有命名类型有没有其他方法可以更改我的设备DNS地址？，我的代码如下。

#include <SPI.h>
#include <WiFi.h>

// the IP address for the shield:
IPAddress dns(8, 8, 8, 8);  //Google dns  

char ssid[] = "yourNetwork";    // your network SSID (name)
char pass[] = "secretPassword"; // your network password (use for WPA, or use as key for WEP)

int status = WL_IDLE_STATUS;

void setup()
{  
  // Initialize serial and wait for port to open:
  Serial.begin(9600);
  while (!Serial) {
    ; // wait for serial port to connect. Needed for Leonardo only
  }

  // check for the presence of the shield:
  if (WiFi.status() == WL_NO_SHIELD) {
    Serial.println("WiFi shield not present");
    while(true);  // don't continue
  }

  // attempt to connect to Wifi network:
  while ( status != WL_CONNECTED) {
    Serial.print("Attempting to connect to SSID: ");
    Serial.println(ssid);
    // Connect to WPA/WPA2 network. Change this line if using open or WEP network:    
    status = WiFi.begin(ssid, pass);

    // wait 10 seconds for connection:
    delay(10000);
  }

  // print your WiFi shield's IP address:
  WiFi.setDNS(dns);
  Serial.print("Dns configured.");
}

void loop () {
}