2sxc9.32.0 error with Content Module - dotnetnuke

DNN: 8.0.4
2sxc: 9.32.0
This is an upgrade to 8.0.4 from an earlier version, but the site is running with no problems.
I added a Content module to a page and selected the "Title Over Image" content item. I get this error:
Error: System.IO.FileLoadException: Could not load file or assembly 'System.Web.Helpers, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35' or one of its dependencies. The located assembly's manifest definition does not match the assembly reference. (Exception from HRESULT: 0x80131040) File name: 'System.Web.Helpers, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35' at Connect.Dnn.Koi.DnnSkinFile.AutoDetect() at Connect.Koi.Context.HttpContextState.TryToDetectTheCssFramework() at Connect.Koi.Context.HttpContextState.get_CssFramework() at Connect.Koi.Context.ToolsForCurrentState.get_Css() at Connect.Koi.Koi.get_IsUnknown() at ASP._Page_Portals_781_2sxc_Content__Shared___Koi_Admin_Messages_cshtml.Execute() in c:\inetpub\vhosts\dev.patapscoresearch.com\httpdocs\Portals\781\2sxc\Content_Shared - Koi Admin Messages.cshtml:line 8 at System.Web.WebPages.WebPageBase.ExecutePageHierarchy() at System.Web.WebPages.WebPageBase.ExecutePageHierarchy(WebPageContext pageContext, TextWriter writer, WebPageRenderingBase startPage) at System.Web.WebPages.WebPageBase.<>c__DisplayClass7.b__6(TextWriter writer) at System.Web.WebPages.HelperResult.WriteTo(TextWriter writer) at System.Web.WebPages.WebPageBase.Write(HelperResult result) at ASP._Page_Portals_781_2sxc_Content__Shared___Assets_cshtml.Execute() in c:\inetpub\vhosts\dev.patapscoresearch.com\httpdocs\Portals\781\2sxc\Content_Shared - Assets.cshtml:line 2 at System.Web.WebPages.WebPageBase.ExecutePageHierarchy() at System.Web.WebPages.WebPageBase.ExecutePageHierarchy(WebPageContext pageContext, TextWriter writer, WebPageRenderingBase startPage) at System.Web.WebPages.WebPageBase.<>c__DisplayClass7.b__6(TextWriter writer) at System.Web.WebPages.HelperResult.WriteTo(TextWriter writer) at System.Web.WebPages.WebPageBase.Write(HelperResult result) at ASP._Page_Portals_781_2sxc_Content__Content___Image_full_width_text_cshtml.Execute() in c:\inetpub\vhosts\dev.patapscoresearch.com\httpdocs\Portals\781\2sxc\Content_Content - Image full-width text.cshtml:line 4 at System.Web.WebPages.WebPageBase.ExecutePageHierarchy() at System.Web.WebPages.WebPageBase.ExecutePageHierarchy(WebPageContext pageContext, TextWriter writer, WebPageRenderingBase startPage) at ToSic.SexyContent.Engines.RazorEngine.Render(TextWriter writer) in C:\Projects\2sxc-dnn742\Website\DesktopModules\ToSIC_SexyContent\2Sexy Content Razor\RazorEngine.cs:line 65 at ToSic.SexyContent.Engines.RazorEngine.RenderTemplate() in C:\Projects\2sxc-dnn742\Website\DesktopModules\ToSIC_SexyContent\2Sexy Content Razor\RazorEngine.cs:line 92 at ToSic.SexyContent.Engines.EngineBase.Render() in C:\Projects\2sxc-dnn742\Website\DesktopModules\ToSIC_SexyContent\ToSic.Sxc\SexyContent\Engines\EngineBase.cs:line 92 at ToSic.SexyContent.SxcInstance.Render() in C:\Projects\2sxc-dnn742\Website\DesktopModules\ToSIC_SexyContent\ToSic.Sxc\SexyContent\SxcInstance_Render.cs:line 58 WRN: Assembly binding logging is turned OFF. To enable assembly bind failure logging, set the registry value [HKLM\Software\Microsoft\Fusion!EnableLog] (DWORD) to 1. Note: There is some performance penalty associated with assembly bind failure logging. To turn this feature off, remove the registry value [HKLM\Software\Microsoft\Fusion!EnableLog].

Check your web.config for empty xmlns tags like:
<assemblyBinding xmlns="">
And remove them, like:
<assemblyBinding>
That worked for me...

My guess is that for some unclear reason, you're missing a web.config in the folder structure. Best compare it with a working setup - you should see a web.config in the portals/x/2sxc folder. I think that should fix it.
This was also asked in https://github.com/2sic/2sxc/issues/1595 and there a solution was found. pls check that.

Related

The located assembly's manifest definition does not match the assembly reference : Exception from HRESULT: 0x80131040

In my project microsoft.owin has version 3.1.0.0 but it asks for older version
2.1.0.0 . I tried to install microsoft.owin but haven't succeeded . My project
framework is 4.5.2 . I tried to install nuget package of this assembly but it's not installed . Can anyone tell me how to solve this error . How can install package 2.1.0.0 version . I tried to redirect it but same error .
ERROR
Could not load file or assembly 'Microsoft.Owin, Version=2.1.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35' or one of its dependencies. The located assembly's manifest definition does not match the assembly reference. (Exception from HRESULT: 0x80131040)
Source Error:
Line 65: // ClientSecret = ""
Line 66: //});
Line 67: }
Line 68: }
Line 69: }
=== Pre-bind state information ===
LOG: DisplayName = Microsoft.Owin, Version=2.1.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35
(Fully-specified)
LOG: Appbase = file:///C:/xxxx/yyyy/uuuu/ldap/
LOG: Initial PrivatePath = C:\xxxx\yyyy\uuuu\ldap\bin
Calling assembly : Microsoft.AspNet.Identity.Owin, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35.
===
LOG: This bind starts in default load context.
LOG: Using application configuration file: C:\xxxx\yyyy\uuuu\ldap\web.config
LOG: Using host configuration file: \\xyz.df.xcxc.com\sdsds\yuyuy\****\My Documents\IISExpress\config\aspnet.config
LOG: Using machine configuration file from C:\Windows\Microsoft.NET\Framework64\v4.0.30319\config\machine.config.
LOG: Post-policy reference: Microsoft.Owin, Version=2.1.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35
LOG: Attempting download of new URL file:///C:/Users/****/AppData/Local/Temp/Temporary ASP.NET Files/root/b0f32b6a/7c9b41cc/Microsoft.Owin.DLL.
LOG: Attempting download of new URL file:///C:/Users/****/AppData/Local/Temp/Temporary ASP.NET Files/root/b0f32b6a/7c9b41cc/Microsoft.Owin/Microsoft.Owin.DLL.
LOG: Attempting download of new URL file:///C:/xxxx/yyyy/uuuu/ldap/bin/Microsoft.Owin.DLL.
WRN: Comparing the assembly name resulted in the mismatch: Major Version
ERR: Failed to complete setup of assembly (hr = 0x80131040). Probing terminated.
Stack Trace:
[FileLoadException: Could not load file or assembly 'Microsoft.Owin, Version=2.1.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35' or one of its dependencies. The located assembly's manifest definition does not match the assembly reference. (Exception from HRESULT: 0x80131040)]
ldap.Startup.ConfigureAuth(IAppBuilder app) in C:\xxxx\yyyy\uuuu\ldap\App_Start\Startup.Auth.cs:67
ldap.Startup.Configuration(IAppBuilder app) in C:\xxxx\yyyy\uuuu\ldap\Startup.cs:9
[TargetInvocationException: Exception has been thrown by the target of an invocation.]
System.RuntimeMethodHandle.InvokeMethod(Object target, Object[] arguments, Signature sig, Boolean constructor) +0
System.Reflection.RuntimeMethodInfo.UnsafeInvokeInternal(Object obj, Object[] parameters, Object[] arguments) +128
System.Reflection.RuntimeMethodInfo.Invoke(Object obj, BindingFlags invokeAttr, Binder binder, Object[] parameters, CultureInfo culture) +142
Owin.Loader.<>c__DisplayClass12.<MakeDelegate>b__b(IAppBuilder builder) +93
Owin.Loader.<>c__DisplayClass1.<LoadImplementation>b__0(IAppBuilder builder) +212
Microsoft.Owin.Host.SystemWeb.OwinAppContext.Initialize(Action`1 startup) +873
Microsoft.Owin.Host.SystemWeb.OwinBuilder.Build(Action`1 startup) +51
Microsoft.Owin.Host.SystemWeb.OwinHttpModule.InitializeBlueprint() +101
System.Threading.LazyInitializer.EnsureInitializedCore(T& target, Boolean& initialized, Object& syncLock, Func`1 valueFactory) +135
Microsoft.Owin.Host.SystemWeb.OwinHttpModule.Init(HttpApplication context) +160
System.Web.HttpApplication.RegisterEventSubscriptionsWithIIS(IntPtr appContext, HttpContext context, MethodInfo[] handlers) +580
System.Web.HttpApplication.InitSpecial(HttpApplicationState state, MethodInfo[] handlers, IntPtr appContext, HttpContext context) +165
System.Web.HttpApplicationFactory.GetSpecialApplicationInstance(IntPtr appContext, HttpContext context) +267
System.Web.Hosting.PipelineRuntime.InitializeApplication(IntPtr appContext) +341
[HttpException (0x80004005): Exception has been thrown by the target of an invocation.]
System.Web.HttpRuntime.FirstRequestInit(HttpContext context) +523
System.Web.HttpRuntime.EnsureFirstRequestInit(HttpContext context) +107
System.Web.HttpRuntime.ProcessRequestNotificationPrivate(IIS7WorkerRequest wr, HttpContext context) +688
please help to solve this issue . how to install the older version of microsoft.owin .
One solution is to downgrade your version of Microsoft.Owin.
Right-click your project in Visual Studio.
Choose "Manage Nuget Packages...".
Under Installed, choose "Microsoft.Owin".
In the "Version" dropdown, choose 2.1.0
Click "Update".

DDRMenu - Could not locate Razor Host Factory type: System.Web.Mvc.MvcWebRazorHostFactory, System.Web.Mvc

We have tried to upgrade dnn site from v7.3.2 to v8.0.3 but the upgrade was failed and while rolling back the changes the DDRmenu disappeared and the logger shows. The specified dll is present in the bin folder. Can anyone help us?
[ERROR] DotNetNuke.Services.Exceptions.Exceptions -
System.NullReferenceException: Object reference not set to an instance
of an object. at DotNetNuke.Web.Razor.RazorEngine.Render[T](TextWriter
writer, T model) [ERROR] DotNetNuke.Services.Exceptions.Exceptions -
System.InvalidOperationException: Could not locate Razor Host Factory
type: System.Web.Mvc.MvcWebRazorHostFactory, System.Web.Mvc at
System.Web.WebPages.Razor.WebRazorHostFactory.CreateFactory(String
typeName) at
System.Collections.Concurrent.ConcurrentDictionary2.GetOrAdd(TKey
key, Func2 valueFactory) at
System.Web.WebPages.Razor.WebRazorHostFactory.CreateHostFromConfigCore(RazorWebSectionGroup
config, String virtualPath, String physicalPath) at
System.Web.WebPages.Razor.WebRazorHostFactory.CreateHostFromConfig(String
virtualPath, String physicalPath)
How did you roll back? You should have reverted to the old version of the database and the old files. Did you delete all of the files before restoring?

Error after upgrading from DNN 7.0 to 7.4.1 (Version Upgrade package)

After completing an upgrade to DNN 7.4 I get the error outlined below. Everything went smoothly and there were no errors in the install log. This happens on any page, and there are no new dependencies on Visual Studio I presume...
2015-06-12 17:43:49,567 [scrumorg-stage][Thread:5][ERROR] DotNetNuke.Common.Internal.EventHandlersContainer`1[[DotNetNuke.Services.FileSystem.IFileEventHandlers, DotNetNuke, Version=7.4.1.280, Culture=neutral, PublicKeyToken=null]] - The type initializer for 'DotNetNuke.ExtensionPoints.ExtensionPointManager' threw an exception.
System.TypeInitializationException: The type initializer for 'DotNetNuke.ExtensionPoints.ExtensionPointManager' threw an exception. ---> System.IO.FileNotFoundException: Could not load file or assembly 'Microsoft.VisualStudio.QualityTools.UnitTestFramework, Version=10.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a' or one of its dependencies. The system cannot find the file specified.
at System.ModuleHandle.ResolveType(RuntimeModule module, Int32 typeToken, IntPtr* typeInstArgs, Int32 typeInstCount, IntPtr* methodInstArgs, Int32 methodInstCount, ObjectHandleOnStack type)
at System.ModuleHandle.ResolveTypeHandleInternal(RuntimeModule module, Int32 typeToken, RuntimeTypeHandle[] typeInstantiationContext, RuntimeTypeHandle[] methodInstantiationContext)
at System.ModuleHandle.ResolveTypeHandle(Int32 typeToken, RuntimeTypeHandle[] typeInstantiationContext, RuntimeTypeHandle[] methodInstantiationContext)
at System.Reflection.RuntimeModule.ResolveType(Int32 metadataToken, Type[] genericTypeArguments, Type[] genericMethodArguments)
at System.Reflection.CustomAttribute.FilterCustomAttributeRecord(CustomAttributeRecord caRecord, MetadataImport scope, Assembly& lastAptcaOkAssembly, RuntimeModule decoratedModule, MetadataToken decoratedToken, RuntimeType attributeFilterType, Boolean mustBeInheritable, Object[] attributes, IList derivedAttributes, RuntimeType& attributeType, IRuntimeMethodInfo& ctor, Boolean& ctorHasParameters, Boolean& isVarArg)
at System.Reflection.CustomAttribute.IsCustomAttributeDefined(RuntimeModule decoratedModule, Int32 decoratedMetadataToken, RuntimeType attributeFilterType, Int32 attributeCtorToken, Boolean mustBeInheritable)
at System.Reflection.CustomAttribute.IsDefined(RuntimeType type, RuntimeType caType, Boolean inherit)
at System.ComponentModel.Composition.AttributedModel.AttributedPartCreationInfo.IsPartDiscoverable()
at System.ComponentModel.Composition.AttributedModel.AttributedModelDiscovery.CreatePartDefinitionIfDiscoverable(Type type, ICompositionElement origin)
at System.ComponentModel.Composition.Hosting.TypeCatalog.get_PartsInternal()
at System.ComponentModel.Composition.Hosting.TypeCatalog.GetEnumerator()
at System.Collections.Generic.List`1..ctor(IEnumerable`1 collection)
at System.Linq.Enumerable.ToList[TSource](IEnumerable`1 source)
at DotNetNuke.ExtensionPoints.SafeDirectoryCatalog..ctor(String directory)
at DotNetNuke.ExtensionPoints.ExtensionPointManager.InitializeMefCompositionContainer()
at DotNetNuke.ExtensionPoints.ExtensionPointManager..cctor()
--- End of inner exception stack trace ---
at DotNetNuke.ExtensionPoints.ExtensionPointManager.ComposeParts(Object[] attributeParts)
at DotNetNuke.Common.Internal.EventHandlersContainer`1..ctor()
Any ideas what I'm missing or what might be happening?
So this issue ended up being a custom DLL found in the BIN folder of the DNN website that Ryan was upgrading.
My non-scientific approach to resolving this was to:
Remove DLLS in bulk in the BIN folder (keep a copy of the DLLs as you aren't sure which one is the problem, put them back after testing)
Load the site (using admin/site settings page)
See if page still errored, if so, repeat steps 1 and 2
Ends up the DLL that was causing the problem was I believe a webservice/api URL for testing. Removing that corrected the issue on the 7.3.4 instance of DNN that they were using.

SQL Server 2012 installation error: Landing Page

After uninstalling SQL Server 2012 and 2008, then reinstalling, I get this error:
Unhandled exception has occurred in your application...
An error occurred creating the configuration section handler for userSettings/Microsoft.SqlServer.Configuration.LandingPage.Properties.Settings:
See the end of this message for details on invoking just-in-time (JIT) debugging instead of this dialog box.
************** Exception Text **************
System.Configuration.ConfigurationErrorsException: An error occurred creating the configuration section handler for userSettings/Microsoft.SqlServer.Configuration.LandingPage.Properties.Settings: Could not load file or assembly 'System, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089' or one of its dependencies. The system cannot find the file specified. (C:\Users\hy\AppData\Local\Microsoft_Corporation\LandingPage.exe_StrongName_ryspccglaxmt4nhllj5z3thycltsvyyx\10.0.0.0\user.config line 5) ---> System.IO.FileNotFoundException: Could not load file or assembly 'System, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089' or one of its dependencies. The system cannot find the file specified.
File name: 'System, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089'
at System.Configuration.TypeUtil.GetTypeWithReflectionPermission(IInternalConfigHost host, String typeString, Boolean throwOnError)
at System.Configuration.RuntimeConfigurationRecord.RuntimeConfigurationFactory.Init(RuntimeConfigurationRecord configRecord, FactoryRecord factoryRecord)
at System.Configuration.RuntimeConfigurationRecord.RuntimeConfigurationFactory.InitWithRestrictedPermissions(RuntimeConfigurationRecord configRecord, FactoryRecord factoryRecord)
at System.Configuration.RuntimeConfigurationRecord.CreateSectionFactory(FactoryRecord factoryRecord)
at System.Configuration.BaseConfigurationRecord.FindAndEnsureFactoryRecord(String configKey, Boolean& isRootDeclaredHere)
WRN: Assembly binding logging is turned OFF.
To enable assembly bind failure logging, set the registry value [HKLM\Software\Microsoft\Fusion!EnableLog] (DWORD) to 1.
Note: There is some performance penalty associated with assembly bind failure logging.
To turn this feature off, remove the registry value [HKLM\Software\Microsoft\Fusion!EnableLog].
--- End of inner exception stack trace ---
at System.Configuration.BaseConfigurationRecord.FindAndEnsureFactoryRecord(String configKey, Boolean& isRootDeclaredHere)
at System.Configuration.BaseConfigurationRecord.GetSectionRecursive(String configKey, Boolean getLkg, Boolean checkPermission, Boolean getRuntimeObject, Boolean requestIsHere, Object& result, Object& resultRuntimeObject)
at System.Configuration.BaseConfigurationRecord.GetSection(String configKey)
at System.Configuration.ClientConfigurationSystem.System.Configuration.Internal.IInternalConfigSystem.GetSection(String sectionName)
at System.Configuration.ConfigurationManager.GetSection(String sectionName)
at System.Configuration.ClientSettingsStore.ReadSettings(String sectionName, Boolean isUserScoped)
at System.Configuration.LocalFileSettingsProvider.GetPropertyValues(SettingsContext context, SettingsPropertyCollection properties)
at System.Configuration.SettingsBase.GetPropertiesFromProvider(SettingsProvider provider)
at System.Configuration.SettingsBase.GetPropertyValueByName(String propertyName)
at System.Configuration.SettingsBase.get_Item(String propertyName)
at System.Configuration.ApplicationSettingsBase.GetPropertyValue(String propertyName)
at System.Configuration.ApplicationSettingsBase.get_Item(String propertyName)
at Microsoft.SqlServer.Configuration.LandingPage.LandingPageForm.OnLoad(EventArgs e)
at System.Windows.Forms.Control.CreateControl(Boolean fIgnoreVisible)
at System.Windows.Forms.Control.CreateControl()
at System.Windows.Forms.Control.WmShowWindow(Message& m)
at System.Windows.Forms.Control.WndProc(Message& m)
at System.Windows.Forms.Control.ControlNativeWindow.WndProc(Message& m)
at System.Windows.Forms.NativeWindow.Callback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)
Delete the
C:\Users\hy\AppData\Local\Microsoft_Corporation\LandingPage.exe_StrongName_ryspccglaxmt4nhllj5z3thycltsvyyx\
directory, and try again.
I believe the uninstall sometimes does not clean up the files completely.
Search in this folder:
C:\Users\user_name\AppData\Local\Microsoft_Corporation
There you will find files or folders like
LandingPage.exe,
or
LandingPage.
Delete all these folders.
Works for Windows 10.
You should be able to find it if you search for %localappdata%\Microsoft_Corporation%
Rename the user.config file located at
C:\Users[USER_NAME]\AppData\Local\Microsoft_Corporation\LandingPage.exe_StrongName_ryspccglaxmt4nhllj5z3thycltsvyyx\10.0.0.0
to
USER.CONFIG.BAK
Delete this Folder C:\Users\yourName\AppData\Local\Microsoft_Corporation\LandingPage.exe_StrongName_ryspccglaxmt4nhllj5z3thycltsvyyx\
Run the command: rd /s /q %localappdata%\Microsoft_Corporation1as

Code Access Security in Reporting Services 2008

I have a Delivery Extension running inside Reporting Service 2008.
It has been running fine for a long time. But now I want to make an insert into a database from within the extension.
First error I got, was this:
Exception: System.Security.SecurityException Exception Message: Request for the permission of type 'System.Data.SqlClient.SqlClientPermission, System.Data, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089' failed. Stacktrace: at System.Security.CodeAccessSecurityEngine.Check(Object demand, StackCrawlMark& stackMark, Boolean isPermSet)
at System.Security.PermissionSet.Demand()
at System.Data.Common.DbConnectionOptions.DemandPermission()
at System.Data.ProviderBase.DbConnectionClosed.OpenConnection(DbConnection outerConnection, DbConnectionFactory connectionFactory)
at System.Data.SqlClient.SqlConnection.Open()
Then I added this, before my code that opens the connection and does the insert:
SqlClientPermission sqlPermission = new SqlClientPermission(System.Security.Permissions.PermissionState.Unrestricted);
sqlPermission.Assert();
Then the error message changed to this:
Exception: System.Security.SecurityException Exception Message: Request for the permission of type 'System.Security.Permissions.SecurityPermission, mscorlib, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089' failed. Stacktrace: at System.Security.CodeAccessSecurityEngine.CheckNReturnSO(PermissionToken permToken, CodeAccessPermission demand, StackCrawlMark& stackMark, Int32 unrestrictedOverride, Int32 create)
at System.Security.CodeAccessSecurityEngine.Assert(CodeAccessPermission cap, StackCrawlMark& stackMark)
at System.Security.CodeAccessPermission.Assert()
Then I added the following line:
SecurityPermission permission = new SecurityPermission(PermissionState.Unrestricted);
permission.Assert();
And now the error I get is this:
Exception: System.Security.SecurityException Exception Message: Stack walk modifier must be reverted before another modification of the same type can be performed. Stacktrace: at System.Security.CodeAccessSecurityEngine.Assert(CodeAccessPermission cap, StackCrawlMark& stackMark)
at System.Security.CodeAccessPermission.Assert()
My code that contains the actual SqlConnection specific code is in an assembly referenced from the Delivery Extension. The Permission specific code was inside that assembly, but I tried moving it into the Delivery Extension assembly - but wothout any luck.
user407428 is correct, trying to enable two different modifiers is what is causing your problem. The best principle is to allow the permission for the part of the code that requires it, and then to disable the permission afterwords. So that when you need the next permission you can modify those rights again.
SqlClientPermission sqlClientPermission = new SqlClientPermission(PermissionState.Unrestricted);
sqlClientPermission.Assert();
//<your code that requires SqlClientPermission here>
CodeAccessPermission.RevertAccess();
SecurityPermission securityPermission = new SecurityPermission(PermissionState.Unrestricted);
securityPermission.Assert();
Some more things to take into account is that it is mostly not required to keep an object to the stack-walk, so the assert can be simplified to a single line, ei.
System.Security.Permissions.SecurityPermission(System.Security.Permissions.PermissionState.Unrestricted).Assert();
If you modified the stack-walk in a encapsulating method, the inner stack would probably not be able to modify the modifiers again. Ex.
public void UseSecurityPermission()
{
CodeAccessPermission.RevertAssert();
new System.Security.Permissions.SecurityPermission(System.Security.Permissions.PermissionState.Unrestricted).Assert();
<Some code that requires the SecurityPermission>
}
static void Main(string[] args)
{
new System.Security.Permissions.FileIOPermission(System.Security.Permissions.PermissionState.Unrestricted).Assert();
//< Some code that requires IOPermission>
UseSecurityPermission();
}
Even though UseSecurityPermission() reverts the stack-walk permission, it would not work, because the compiler can't get the security descriptor in the context.
Some further reading:
Programming with Stack-Walk Modifiers
At the point you are trying to modify the access permissions you may already have inherited it from higher level, or maybe you have done it somewhere before the point you are.
For example we have code like this:
SqlClientPermission sqlClientPermission = new SqlClientPermission(PermissionState.Unrestricted);
sqlClientPermission.Assert();
SecurityPermission securityPermission = new SecurityPermission(PermissionState.Unrestricted);
securityPermission.Assert();
We will have the exception like yours.

Resources