(17:37:59) | Error while compiling: ImageLibrary.cs(150,19): error CS0131: The left-hand side of an assignment must be a variable, a property or an indexer

Error after update:

Error while compiling: ImageLibrary.cs(150,19): error CS0131: The left-hand side of an assignment must be a variable, a property or an indexer

private IEnumerator GetWorkshopSkins()
        {
            var query = SteamServer.Workshop.CreateQuery();
            query.Page = 1;
            query.PerPage = 50000;
            query.RequireTags.Add("version3");
            query.RequireTags.Add("skin");
            query.RequireAllTags = true;
            query.Run();
            Puts("Querying Steam for available workshop items. Please wait for a response from Steam...");
            yield return new WaitWhile(() => query.IsRunning);
            Puts($"Found {query.Items.Length} workshop items. Gathering image URLs");

            foreach (var item in query.Items)
            {
                if (!string.IsNullOrEmpty(item.PreviewImageUrl))
                {
                    foreach (var tag in item.Tags)
                    {
                        var adjTag = tag.ToLower().Replace("skin", "").Replace(" ", "").Replace("-", "");
                        if (workshopNameToShortname.ContainsKey(adjTag))
                        {
                            string identifier = $"{workshopNameToShortname[adjTag]}_{item.Id}";

                            if (!imageUrls.URLs.ContainsKey(identifier))
                                imageUrls.URLs.Add(identifier, item.PreviewImageUrl);

                            skinInformation.skinData[identifier] = new Dictionary<string, object>
                                {
                                    {"title", item.Title },
                                    {"votesup", item.VotesUp },
                                    {"votesdown", item.VotesDown },
                                    {"description", item.Description },
                                    {"score", item.Score },
                                    {"views", item.WebsiteViews },
                                    {"created", item.Created },
                                };
                        }
                    }
                }
            }
            query.Dispose();
            SaveUrls();
            SaveSkinInfo();
        }​

to 

private IEnumerator GetWorkshopSkins()
{
     yield return null;
}

35 ImageLibrary - Failed to compile: ImageLibrary.cs(150,19): error CS0131: The left-hand side of an assignment must be a variable, a property or an indexer

receiving this error as of the update.

Web request callback raised an exception (NullReferenceException: routine is null)
  at UnityEngine.MonoBehaviour.StartCoroutine (System.Collections.IEnumerator routine) [0x00007] in <ab8720fd7146431da2176de7b624c626>:0
  at Oxide.Plugins.ImageLibrary.<GetItemSkins>m__1 (System.Int32 code, System.String response) [0x00224] in <8d22096a82ac4a38ab489f22de78492b>:0
  at Oxide.Core.Libraries.WebRequests+WebRequest.<OnComplete>b__42_0 () [0x00034] in <4452f821def6406d834e4149849fe7ea>:0​