I'm using a managed server and have to use medium trust to run my site, it was based on PSS.

It works most of the time, but sometimes it will give me a permissions error.  It will be up for hours, then I get this error for a while, but if I refresh enough times it will eventually work?  The people who run the managed server are stumped.  Can PSS run on medium trust? Is there something I need to change?

Exception Details: System.Security.SecurityException: Request for the permission of type 'System.Security.Permissions.FileIOPermission, mscorlib, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089' failed.

Source Error:


[No relevant source lines]


Source File: App_Web_default.aspx.cdcab7d2.cmshozre.0.cs Line: 0

Stack Trace:



[SecurityException: Request for the permission of type 'System.Security.Permissions.FileIOPermission, mscorlib, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089' failed.]
System.Security.CodeAccessSecurityEngine.Check(Object demand, StackCrawlMark& stackMark, Boolean isPermSet) +0
System.Security.CodeAccessPermission.Demand() +59
System.IO.Path.GetFullPath(String path) +98
System.Web.Util.FileUtil.IsSuspiciousPhysicalPath(String physicalPath, Boolean& pathTooLong) +50
System.Web.Util.FileUtil.IsSuspiciousPhysicalPath(String physicalPath) +23
System.Web.CachedPathData.GetConfigPathData(String configPath) +465
System.Web.CachedPathData.GetConfigPathData(String configPath) +243
System.Web.CachedPathData.GetConfigPathData(String configPath) +243
System.Web.CachedPathData.GetVirtualPathData(VirtualPath virtualPath, Boolean permitPathsOutsideApp) +132
System.Web.HttpContext.GetPathData(VirtualPath path) +3372026
System.Web.Security.UrlAuthorizationModule.IsUserAllowedToPath(HttpContext context, VirtualPath virtualPath) +132
System.Web.UI.Util.IsUserAllowedToPath(HttpContext context, VirtualPath virtualPath) +101
System.Web.SiteMapProvider.IsAccessibleToUser(HttpContext context, SiteMapNode node) +367
System.Web.SiteMapNode.IsAccessibleToUser(HttpContext context) +14
System.Web.StaticSiteMapProvider.GetChildNodes(SiteMapNode node) +348
System.Web.SiteMapNode.get_ChildNodes() +23
System.Web.SiteMapNode.get_HasChildNodes() +4
System.Web.SiteMapNode.System.Web.UI.IHierarchyData.get_HasChildren() +4
System.Web.UI.WebControls.Menu.DataBindRecursive(MenuItem node, IHierarchicalEnumerable enumerable) +4225
System.Web.UI.WebControls.Menu.DataBindItem(MenuItem item) +277
System.Web.UI.WebControls.Menu.PerformDataBinding() +117
System.Web.UI.WebControls.HierarchicalDataBoundControl.PerformSelect() +82
System.Web.UI.WebControls.BaseDataBoundControl.DataBind() +70
System.Web.UI.WebControls.Menu.DataBind() +4
System.Web.UI.WebControls.BaseDataBoundControl.EnsureDataBound() +82
System.Web.UI.WebControls.Menu.EnsureDataBound() +29
System.Web.UI.WebControls.Menu.OnPreRender(EventArgs e, Boolean registerScript) +21
System.Web.UI.WebControls.Menu.OnPreRender(EventArgs e) +22
System.Web.UI.Control.PreRenderRecursiveInternal() +77
System.Web.UI.Control.PreRenderRecursiveInternal() +161
System.Web.UI.Control.PreRenderRecursiveInternal() +161
System.Web.UI.Control.PreRenderRecursiveInternal() +161
System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +6953
System.Web.UI.Page.ProcessRequest(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +154
System.Web.UI.Page.ProcessRequest() +86
System.Web.UI.Page.ProcessRequestWithNoAssert(HttpContext context) +18
System.Web.UI.Page.ProcessRequest(HttpContext context) +49
ASP._default_aspx.ProcessRequest(HttpContext context) in App_Web_default.aspx.cdcab7d2.cmshozre.0.cs:0
System.Web.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() +154
System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously) +64

My web.config

http://msdn.microsoft.com/library/default.asp?url=/library/en-us/dnpag2/html/paght000020.asp

Might send this link to your host. Fixing the error will probably require understanding Medium trust and ASP.NET 2.0, along with the framework of the Personal Site Starter Kit.

I found someone with the same problem as me

http://communityserver.org/forums/2/539297/ShowThread.aspx

This is what their solution was so far.  Does this sound right?

You should at least send that to your hosting provider and see if they can try that for you. In addition, you should also send them the link from my previous post.