Having higher version Telerik DLL prevents the UI from opening

Versions / Builds Affected

2012 / 20120913

Status

Resolved

Problem Summary

When trying to open the web UI in either Cassini (Local) or IIS mode, an error is generated and the UI cannot open.

TT / JIRAID

748

How to Identify

When trying to open the UI, the following error appears and the UI will not open: Log Name: Application Source: ASP.NET 4.0.30319.0 Date: 11/15/2012 11:14:03 AM Event ID: 1310 Task Category: Web Event Level: Warning Keywords: Classic User: N/A Computer: Exchange2010.kaci.lcl Description: Event code: 3008 Event message: A configuration error has occurred. Event time: 11/15/2012 11:14:03 AM Event time (UTC): 11/15/2012 4:14:03 PM Event ID: 97c528707b974f3e98011e0b7ee7eaef Event sequence: 1 Event occurrence: 1 Event detail code: 0 Application information: Application domain: /LM/W3SVC/1/ROOT/MailEssentials-1-129974696310605073 Trust level: Full Application Virtual Path: /MailEssentials Application Path: C:\Program Files (x86)\GFI\MailEssentials\WwwConf\ Machine name: EXCHANGE2010 Process information: Process ID: 11440 Process name: w3wp.exe Account name: NT AUTHORITY\NETWORK SERVICE Exception information: Exception type: ConfigurationErrorsException Exception message: Could not load file or assembly 'Telerik.Web.UI, Version=2011.2.712.40, Culture=neutral' or one of its dependencies. The located assembly's manifest definition does not match the assembly reference. (Exception from HRESULT: 0x80131040) (C:\Program Files (x86)\GFI\MailEssentials\WwwConf\web.config line 58) at System.Web.Configuration.CompilationSection.LoadAssemblyHelper(String assemblyName, Boolean starDirective) at System.Web.Configuration.AssemblyInfo.get_AssemblyInternal() at System.Web.Compilation.BuildManager.GetReferencedAssemblies(CompilationSection compConfig) at System.Web.Compilation.BuildManager.CallPreStartInitMethods() at System.Web.Hosting.HostingEnvironment.Initialize(ApplicationManager appManager, IApplicationHost appHost, IConfigMapPathFactory configMapPathFactory, HostingEnvironmentParameters hostingParameters, PolicyLevel policyLevel, Exception appDomainCreationException) Could not load file or assembly 'Telerik.Web.UI, Version=2011.2.712.40, Culture=neutral' or one of its dependencies. The located assembly's manifest definition does not match the assembly reference. (Exception from HRESULT: 0x80131040) at System.Reflection.RuntimeAssembly._nLoad(AssemblyName fileName, String codeBase, Evidence assemblySecurity, RuntimeAssembly locationHint, StackCrawlMark& stackMark, Boolean throwOnFileNotFound, Boolean forIntrospection, Boolean suppressSecurityChecks) at System.Reflection.RuntimeAssembly.InternalLoadAssemblyName(AssemblyName assemblyRef, Evidence assemblySecurity, StackCrawlMark& stackMark, Boolean forIntrospection, Boolean suppressSecurityChecks)

Workaround / Fix Details

Upgrade customer to GFI MailEssentials 2015 or later

Required Actions

Upgrade customer to GFI MailEssentials 2015 or later