Install Error:

D:\DotNetNuke_4.3.5_Source\Website\Install\Module\Reports_4.3.1_Source.zip:  Error!

The Messages:

Installing DotNetNuke

Version: 04.03.05

Installation Status Report

......
00:00:19.359 -   Installing Module File D:\DotNetNuke_4.3.5_Source\Website\Install\Module\Media_03.02.02_Install.zip:  Success
00:00:19.593 -   Installing Module File D:\DotNetNuke_4.3.5_Source\Website\Install\Module\NewsFeeds_3.1.1_Install.zip:  Success
00:00:19.781 -   Installing Module File D:\DotNetNuke_4.3.5_Source\Website\Install\Module\Reports_4.3.1_Source.zip:  Error!
00:00:20.125 -   Installing Module File D:\DotNetNuke_4.3.5_Source\Website\Install\Module\Repository_3.1.10_Install.zip:  Success
00:00:22.734 -   Installing Module File D:\DotNetNuke_4.3.5_Source\Website\Install\Module\Store_01.00.01_Install.zip:  Success
00:00:24.031 -   Installing Module File D:\DotNetNuke_4.3.5_Source\Website\Install\Module\Survey_3.3_Install.zip:  Success
00:00:24.359 -   Installing Module File D:\DotNetNuke_4.3.5_Source\Website\Install\Module\UserDefinedTable_3.03.03_Install.zip:  Success
00:00:25.140 -   Installing Module File D:\DotNetNuke_4.3.5_Source\Website\Install\Module\UsersOnline_3.1_Install.zip:  Success
00:00:25.250 -   Installing Module File D:\DotNetNuke_4.3.5_Source\Website\Install\Module\WhatsNew_3.3_Install.zip:  Success
00:00:25.281 -   Installing Module File D:\DotNetNuke_4.3.5_Source\Website\Install\Module\XML_3.1_Install.zip:  Success
00:00:25.343 - Executing Additional Scripts:
00:00:25.343 -   Creating Portal: My Website
00:00:27.953 -   Successfully Installed Portal 0:
00:00:27.953 - Installing Optional Resources:

Installation Complete

I try reinstalling the reports module, But it still error!

E.g:

Info	Created D:\DotNetNuke_4.3.5_Source\Website\DesktopModules\Reports\ViewReports.ascx
Info	Created D:\DotNetNuke_4.3.5_Source\Website\DesktopModules\Reports\ViewReports.ascx.vb
Info	Created D:\DotNetNuke_4.3.5_Source\Website\DesktopModules\Reports\Settings.ascx
Info	Created D:\DotNetNuke_4.3.5_Source\Website\DesktopModules\Reports\Settings.ascx.vb
Info	Created D:\DotNetNuke_4.3.5_Source\Website\DesktopModules\Reports\App_LocalResources\ViewReports.ascx.resx
Info	Created D:\DotNetNuke_4.3.5_Source\Website\DesktopModules\Reports\App_LocalResources\Settings.ascx.resx
Failure	ExceptionSystem.Configuration.ConfigurationErrorsException: An error occurred loading a configuration file: Request for the permission of type 'System.Security.Permissions.FileIOPermission, mscorlib, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089' failed. (machine.config) ---> 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.IO.FileStream.Init(String path, FileMode mode, FileAccess access, Int32 rights, Boolean useRights, FileShare share, Int32 bufferSize, FileOptions options, SECURITY_ATTRIBUTES secAttrs, String msgPath, Boolean bFromProxy) at System.IO.FileStream..ctor(String path, FileMode mode, FileAccess access, FileShare share) at System.Configuration.Internal.InternalConfigHost.StaticOpenStreamForRead(String streamName) at System.Configuration.Internal.InternalConfigHost.System.Configuration.Internal.IInternalConfigHost.OpenStreamForRead(String streamName, Boolean assertPermissions) at System.Configuration.Internal.InternalConfigHost.System.Configuration.Internal.IInternalConfigHost.OpenStreamForRead(String streamName) at System.Configuration.Internal.DelegatingConfigHost.OpenStreamForRead(String streamName) at System.Configuration.UpdateConfigHost.OpenStreamForRead(String streamName) at System.Configuration.BaseConfigurationRecord.InitConfigFromFile() 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 --- End of inner exception stack trace --- at System.Configuration.ConfigurationSchemaErrors.ThrowIfErrors(Boolean ignoreLocal) at System.Configuration.BaseConfigurationRecord.ThrowIfParseErrors(ConfigurationSchemaErrors schemaErrors) at System.Configuration.Configuration..ctor(String locationSubPath, Type typeConfigHost, Object[] hostInitConfigurationParams) at System.Configuration.Internal.InternalConfigConfigurationFactory.System.Configuration.Internal.IInternalConfigConfigurationFactory.Create(Type typeConfigHost, Object[] hostInitConfigurationParams) at System.Web.Configuration.WebConfigurationHost.OpenConfiguration(WebLevel webLevel, ConfigurationFileMap fileMap, VirtualPath path, String site, String locationSubPath, String server, String userName, String password, IntPtr tokenHandle) at System.Web.Configuration.WebConfigurationManager.OpenWebConfigurationImpl(WebLevel webLevel, ConfigurationFileMap fileMap, String path, String site, String locationSubPath, String server, String userName, String password, IntPtr userToken) at System.Web.Configuration.WebConfigurationManager.OpenWebConfiguration(String path) at DotNetNuke.Common.Utilities.Config.AddCodeSubDirectory(String name) at DotNetNuke.Modules.Admin.ResourceInstaller.PaDnnInstallerBase.CreateModuleFile(PaFile File, PaFolder Folder) at DotNetNuke.Modules.Admin.ResourceInstaller.PaDnnInstallerBase.CreateFiles(PaFolder Folder) at DotNetNuke.Modules.Admin.ResourceInstaller.PaDnnInstallerBase.Install(PaFolderCollection folders) at DotNetNuke.Modules.Admin.ResourceInstaller.PaInstaller.Install()

I have had a couple of users report this issue to me on hosted sites, I think it stems from the pa installer attempting to add the codeSubdirectory tag for C# modules. Can you confirm/deny whether or not this site is running under medium trust?