System.Security.SecurityException: Request for the permission of type 'System.Security.Permissions.FileIOPermission, mscorlib, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089' failed. at System.Security.CodeAccessSecurityEngine.Check(Object demand, StackCrawlMark& stackMark, Boolean isPermSet) at System.Security.CodeAccessPermission.Demand() at System.Web.HttpRequest.MapPath(VirtualPath virtualPath, VirtualPath baseVirtualDir, Boolean allowCrossAppMapping) at System.Web.HttpServerUtility.MapPath(String path) at Microsoft.SharePoint.WebControls.SPControlTemplateManager.GetTemplateCollection() at Microsoft.SharePoint.WebControls.SPControlTemplateManager.GetTemplateByName(String templateName) at Microsoft.SharePoint.WebControls.TemplateBasedControl.get_Template() at Microsoft.SharePoint.WebControls.TemplateBasedControl.get_ControlTemplate() at Microsoft.SharePoint.WebControls.ListFieldIterator.CreateChildControls() at System.Web.UI.Control.EnsureChildControls() at Microsoft.SharePoint.WebControls.TemplateBasedControl.OnLoad(EventArgs e) at System.Web.UI.Control.LoadRecursive() at System.Web.UI.Control.LoadRecursive() at System.Web.UI.Control.LoadRecursive() at System.Web.UI.Control.LoadRecursive() at System.Web.UI.Control.AddedControl(Control control, Int32 index) at COPInternetFeatures.WEBPARTS.General.COPAddListItem.CreateChildControls() The action that failed was: Demand The type of the first permission that failed was: System.Security.Permissions.FileIOPermission The Zone of the assembly that failed was: MyComputer