c# - 从共享主机切换到 vps 并获得“路径中的非法字符”

Question

好吧，我在这里扯掉我的头发。我从以前的开发人员那里接手了一些代码，我做了很多工作，至少可以说非常深入。无论如何，我已经与这个问题斗争了几天，无法弄清楚。

我已经从运行良好的共享虚拟主机（aspwebhosting）复制了确切的代码，并将其复制到我们的 vps，现在我得到了这个错误，我无法弄清楚它来自哪里或问题是什么。请有人帮助我。

   System.ArgumentException: Illegal characters in path.
   at System.IO.Path.CheckInvalidPathChars(String path)
   at System.Security.Permissions.FileIOPermission.HasIllegalCharacters(String[] str)
   at System.Security.Permissions.FileIOPermission.AddPathList(FileIOPermissionAccess access, AccessControlActions control, String[] pathListOrig, Boolean checkForDuplicates, Boolean needFullPath, Boolean copyPathList)
   at System.Security.Permissions.FileIOPermission.AddPathList(FileIOPermissionAccess access, String[] pathListOrig, Boolean checkForDuplicates, Boolean needFullPath, Boolean copyPathList)
   at System.Security.Permissions.FileIOPermission..ctor(FileIOPermissionAccess access, String path)
   at System.Web.HttpRequest.get_PhysicalPath()
   at WebsitePanel.IIsModules.SecureFolders.context_OnEnter(Object sender, EventArgs e)
   at System.Web.HttpApplication.SyncEventExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute()
   at System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously)