OpsHub迁移选择团队项目失败，对象引用未设置为对象的实例

Question

我本周从https://visualstudiogallery.msdn.microsoft.com/28a90a17-d00c-4660-b7ae-42d58315ccf2/file/132237/7/OVSMU-V1.1.0.001.exe安装了最新版本的OpsHub Visual Studio在线迁移工具。

安装成功完成，我可以选择我们的TFS服务器和VSO服务器位置，但在Select Team Projects屏幕上出现"Object reference not set to an instance of an object"错误。建议？

错误：

2014-12-08 07:16:55,855 [1] ERROR Object reference not set to an instance of an object.
System.NullReferenceException: Object reference not set to an instance of an object.
   at TFSMigrationUI.ViewModel.ProjectSelectionViewModel.loadProjectWorker_RunWorkerCompleted(Object sender, RunWorkerCompletedEventArgs e) in e:\OVSMUBranch\TFSMigrationUI\ViewModel\ProjectSelectionViewModel.cs:line 312