missing a reference The referenced component 'System.Web.WebPages.Administration' could not be found.

Question

I have a reference to
System.Web.WebPages.Administration that seems to be missing see attached image. How do I reinstall it?

Answer 1

Server Error in '/' Application.
Attempt by security transparent method 'System.Web.WebPages.Administration.SiteAdmin.RegisterAdminModule()' to access security critical method 'System.Web.WebPages.ApplicationPart..ctor(System.Reflection.Assembly, System.String)' failed.
Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.

Exception Details: System.MethodAccessException: Attempt by security transparent method 'System.Web.WebPages.Administration.SiteAdmin.RegisterAdminModule()' to access security critical method 'System.Web.WebPages.ApplicationPart..ctor(System.Reflection.Assembly, System.String)' failed.

Source Error:

An unhandled exception was generated during the execution of the current web request. Information regarding the origin and location of the exception can be identified using the exception stack trace below.

Stack Trace:

[MethodAccessException: Attempt by security transparent method 'System.Web.WebPages.Administration.SiteAdmin.RegisterAdminModule()' to access security critical method 'System.Web.WebPages.ApplicationPart..ctor(System.Reflection.Assembly, System.String)' failed.]
System.Web.WebPages.Administration.SiteAdmin.RegisterAdminModule() +44
System.Web.WebPages.Administration.PreApplicationStartCode.Start() +22

[InvalidOperationException: The pre-application start initialization method Start on type System.Web.WebPages.Administration.PreApplicationStartCode threw an exception with the following error message: Attempt by security transparent method 'System.Web.WebPages.Administration.SiteAdmin.RegisterAdminModule()' to access security critical method 'System.Web.WebPages.ApplicationPart..ctor(System.Reflection.Assembly, System.String)' failed..]
System.Web.Compilation.BuildManager.InvokePreStartInitMethodsCore(ICollection1 methods, Func1 setHostingEnvironmentCultures) +646
System.Web.Compilation.BuildManager.InvokePreStartInitMethods(ICollection`1 methods) +147
System.Web.Compilation.BuildManager.CallPreStartInitMethods(String preStartInitListPath, Boolean& isRefAssemblyLoaded) +107
System.Web.Compilation.BuildManager.ExecutePreAppStart() +165
System.Web.Hosting.HostingEnvironment.Initialize(ApplicationManager appManager, IApplicationHost appHost, IConfigMapPathFactory configMapPathFactory, HostingEnvironmentParameters hostingParameters, PolicyLevel policyLevel, Exception appDomainCreationException) +590

[HttpException (0x80004005): The pre-application start initialization method Start on type System.Web.WebPages.Administration.PreApplicationStartCode threw an exception with the following error message: Attempt by security transparent method 'System.Web.WebPages.Administration.SiteAdmin.RegisterAdminModule()' to access security critical method 'System.Web.WebPages.ApplicationPart..ctor(System.Reflection.Assembly, System.String)' failed..]
System.Web.HttpRuntime.FirstRequestInit(HttpContext context) +10087352
System.Web.HttpRuntime.EnsureFirstRequestInit(HttpContext context) +99
System.Web.HttpRuntime.ProcessRequestNotificationPrivate(IIS7WorkerRequest wr, HttpContext context) +263

Version Information: Microsoft .NET Framework Version:4.0.30319; ASP.NET Version:4.8.4330.0

Answer 2

Hi @rob m ,
First you need to check if the nuget package exists.
If you need to install it,you could do like this:
Right click your project-->Select Manage Nuget Package-->Search 'Microsoft.AspNet.WebPages.Administration' in Browse search textbox-->Select and Install it.

If the package exist but broken, you could uninstall and then reinstall it,there are two ways:

• In Package Manager console,you could enter this command: Update-Package -reinstall
• In Package Manager UI Right click your project-->Select Manage Nuget Package-->Search 'Microsoft.AspNet.WebPages.Administration' in Installed search textbox-->Select and Unstall it -->
  Search 'Microsoft.AspNet.WebPages.Administration' in Browse search textbox-->Select and Install it.

Best regards,
Yijing Sun

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Answer 3

Yes I saw that posting as well , I did delete all the dll in the bin folder cleaned and re build . I still get that error

Answer 4

that worked!