Exception: WWW download:Unknown Error

Unity Engine
1

I’m getting this error when using WWW.LoadFromCacheOrDownload: on Android

Exception: WWW download:Unknown Error

This is the code:

// Download an AssetBundle
    public static IEnumerator downloadAssetBundle(string url, int version)
    {
        Debug.Log("We are now going to download... " + url);
        Global.Instance.downloadPercentage = 0f;
        AssetBundleProgressBar.Instance.Begin();

        string keyName = url + version.ToString();
        if (dictAssetBundleRefs.ContainsKey(keyName))
            yield return null;
        else
        {
            while (!Caching.ready)
                yield return null;
            Debug.Log(url);
            using (WWW www = WWW.LoadFromCacheOrDownload(url, version))
            {
                // Added code for progress bar
                while (!www.isDone)
                {
                    Global.Instance.downloadPercentage = Mathf.Clamp01(www.progress / 0.9f);
                    // Debug.Log(www.progress);
                    yield return null;
                }
                AssetBundleProgressBar.Instance.End();

                yield return www;
                if (www.error != null)
                    throw new Exception("WWW download:" + www.error);
                AssetBundleRef abRef = new AssetBundleRef(url, version);
                abRef.assetBundle = www.assetBundle;
                dictAssetBundleRefs.Add(keyName, abRef);
            }
        }
    }

It’s downloading from here:

http://www.roseportalgames.com/files/assetbundles/Android/duplicates

I didn’t have this problem before updating my game with some new content so I’m a bit confused.

Thanks,

2

Check the headers. If you got STATUS: 200 OK, it means the bundle was successfully downloaded, but it could not be loaded. I’m not sure if you get this status if bundle is in cache though, but in that case the header list should be empty, since there was no actual download.