Legacy Documentation: Version 2018.1 (Go to current version)
LanguageEnglish
  • C#
  • JS

Script language

Select your preferred scripting language. All code snippets will be displayed in this language.

WWW.error

Suggest a change

Success!

Thank you for helping us improve the quality of Unity Documentation. Although we cannot accept all submissions, we do read each suggested change from our users and will make updates where applicable.

Close

Submission failed

For some reason your suggested change could not be submitted. Please <a>try again</a> in a few minutes. And thank you for taking the time to help us improve the quality of Unity Documentation.

Close

Cancel

public var error: string;
public string error;

Description

Returns an error message if there was an error during the download (Read Only).

If there was no error, error will return null or an empty string (this is because some platforms don't allow nulls for string values). We recommend that you use String.IsNullOrEmpty to check for the presence of an error so that both cases are covered.

If the object has not finished downloading the data, it will block until the download has finished. Use isDone or yield to see if the data is available.

// Make a request with an invalid url
var url = "invalid_url";
function Start () {
     // Start a download of the given URL
    var www : WWW = new WWW (url);

// Wait for download to complete yield www;

// Print the error to the console if (!String.IsNullOrEmpty(www.error)) Debug.Log(www.error); }
using UnityEngine;
using System.Collections;

public class ExampleClass : MonoBehaviour { // Make a request with an invalid url public string url = "invalid_url"; IEnumerator Start() { using (WWW www = new WWW(url)) { yield return www; if (!string.IsNullOrEmpty(www.error)) Debug.Log(www.error); } } }

In the example the URL is not valid so the error message will be "Couldn't resolve host".

Did you find this page useful? Please give it a rating: