Web portal Error after upgrade to 9.0 LTS

Hi all ,

Just going through the upgrade from 8.1.5 to 9.0 LTS

I updated the current web config file as per .Net Error after upgrading IT Shop to 9.1 but it does seem to be resolving the issue. The Next step is re-installing the web portal but asking to see if there is another way around without having to unistall and reinstall the whole web portal.

Tried to Autoupdate from the monitor page but keeps on going back to the same error while navigating to the monitor page.


Current error message

Server Error in '/IdentityManager' Application.


Configuration Error

Description: An error occurred during the processing of a configuration file required to service this request. Please review the specific error details below and modify your configuration file appropriately.

Parser Error Message: Could not load file or assembly 'System.Web.Mvc, Version=5.2.9.0, 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 78:     <compilation debug="false" defaultLanguage="c#" targetFramework="4.8">
Line 79:       <assemblies>
Line 80:         <add assembly="System.Web.Mvc, Version=5.2.9.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" />
Line 81:         <add assembly="System.Web.WebPages, Version=3.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" />
Line 82:         <add assembly="System.Web.Helpers, Version=3.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" />


Source File: C:\inetpub\wwwroot\IdentityManager\web.config    Line: 80

Assembly Load Trace: The following information can be helpful to determine why the assembly 'System.Web.Mvc, Version=5.2.9.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35' could not be loaded.

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].

 


Version Information: Microsoft .NET Framework Version:4.0.30319; ASP.NET Version:4.8.4110.0