ReleaseHttpClientBase套接字异常

Question

我正在使用Microsoft.VisualStudio.Services.Release程序包中的ReleaseHttpClientBase，但出现了一些奇怪的现象。因此，我在每个TFS项目上都调用GetReleaseDefinitionsAsync，但是我从TFS获得了套接字异常。奇怪的是，如果我正在运行Fiddler，它每次都会工作。我无法弄清楚。

public IEnumerable<ReleaseDefinition> GetReleaseDefinitions()
    {
        IEnumerable<CatalogNode> collectionNodes = GetCollectionNodes();
        IEnumerable<ReleaseDefinition> releaseDefinitions = new List<ReleaseDefinition>();
        //collectionNodes = collectionNodes.Skip(4);
        foreach(var collectionNode in collectionNodes)
        {
            var uri = new Uri(TfsUri,collectionNode.Resource.DisplayName);
            var releaseClient = GetHttpClient(uri);
            IEnumerable<string> projectNames = GetListOfProjectNames(collectionNode);
            foreach(string projectName in projectNames)
            {
                releaseDefinitions = releaseDefinitions.Concat(releaseClient.GetReleaseDefinitionsAsync(project: projectName).Result);
            }
            releaseClient.Dispose();
        }
        return releaseDefinitions;
    }