Hi Telerik team,

when I followed the documentation about (installing a widget from SDK to your website) to install NewsRotator in my website I received this error when I tried to get into my website.

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Could not load file or assembly 'Telerik.Sitefinity, Version=5.0.2860.0, Culture=neutral, PublicKeyToken=b28c218413bdf563' or one of its dependencies. The located assembly's manifest definition does not match the assembly reference. (Exception from HRESULT: 0x80131040)

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.IO.FileLoadException: Could not load file or assembly 'Telerik.Sitefinity, Version=5.0.2860.0, Culture=neutral, PublicKeyToken=b28c218413bdf563' or one of its dependencies. The located assembly's manifest definition does not match the assembly reference. (Exception from HRESULT: 0x80131040)

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.

Assembly Load Trace: The following information can be helpful to determine why the assembly 'Telerik.Sitefinity, Version=5.0.2860.0, Culture=neutral, PublicKeyToken=b28c218413bdf563' 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].

Stack Trace: 

[FileLoadException: Could not load file or assembly 'Telerik.Sitefinity, Version=5.0.2860.0, Culture=neutral, PublicKeyToken=b28c218413bdf563' or one of its dependencies. The located assembly's manifest definition does not match the assembly reference. (Exception from HRESULT: 0x80131040)] System.Reflection.RuntimeAssembly.GetType(RuntimeAssembly assembly, String name, Boolean throwOnError, Boolean ignoreCase, ObjectHandleOnStack type) +0 System.Reflection.RuntimeAssembly.GetType(String name, Boolean throwOnError, Boolean ignoreCase) +146 System.Web.UI.Util.GetTypeFromAssemblies(IEnumerable assemblies, String typeName, Boolean ignoreCase) +184 System.Web.Compilation.BuildManager.GetType(String typeName, Boolean throwOnError, Boolean ignoreCase) +567 Telerik.Sitefinity.Utilities.TypeConverters.TypeResolutionService.GetType(String name, Boolean throwOnError, Boolean ignoreCase) +610 Telerik.Sitefinity.Utilities.TypeConverters.StringTypeConverter.ConvertFrom(ITypeDescriptorContext context, CultureInfo culture, Object value) +94 Telerik.Sitefinity.Configuration.ConfigElement.GetValueFromString(String stringValue, Type type, ConfigProperty property) +367 Telerik.Sitefinity.Configuration.Data.XmlConfigProvider.LoadValue(XmlReader reader, String propertyName, Type definedType, ConfigProperty property) +210 Telerik.Sitefinity.Configuration.Data.XmlConfigProvider.LoadAttributes(ConfigElement element, XmlReader reader, ConfigPolicyHandler policyHandler, String policyName, UpgradingInfo upgradingInfo, Boolean isNew) +679 Telerik.Sitefinity.Configuration.Data.XmlConfigProvider.LoadElement(ConfigElement element, XmlReader reader, ConfigPolicyHandler policyHandler, String policyName, UpgradingInfo upgradingInfo, Boolean isNew, Boolean validateTagName) +254 Telerik.Sitefinity.Configuration.Data.XmlConfigProvider.LoadCollectionElement(ConfigElementCollection collection, XmlReader reader, ConfigPolicyHandler policyHandler, String policyName, UpgradingInfo upgradingInfo) +1159 Telerik.Sitefinity.Configuration.Data.XmlConfigProvider.LoadElement(ConfigElement element, XmlReader reader, ConfigPolicyHandler policyHandler, String policyName, UpgradingInfo upgradingInfo, Boolean isNew, Boolean validateTagName) +343 Telerik.Sitefinity.Configuration.Data.XmlConfigProvider.LoadPropertyElement(ConfigElement element, XmlReader reader, ConfigPolicyHandler policyHandler, String policyName, UpgradingInfo upgradingInfo) +577 Telerik.Sitefinity.Configuration.Data.XmlConfigProvider.LoadElement(ConfigElement element, XmlReader reader, ConfigPolicyHandler policyHandler, String policyName, UpgradingInfo upgradingInfo, Boolean isNew, Boolean validateTagName) +379 Telerik.Sitefinity.Configuration.Data.XmlConfigProvider.LoadCollectionElement(ConfigElementCollection collection, XmlReader reader, ConfigPolicyHandler policyHandler, String policyName, UpgradingInfo upgradingInfo) +1159 Telerik.Sitefinity.Configuration.Data.XmlConfigProvider.LoadElement(ConfigElement element, XmlReader reader, ConfigPolicyHandler policyHandler, String policyName, UpgradingInfo upgradingInfo, Boolean isNew, Boolean validateTagName) +343 Telerik.Sitefinity.Configuration.Data.XmlConfigProvider.LoadPropertyElement(ConfigElement element, XmlReader reader, ConfigPolicyHandler policyHandler, String policyName, UpgradingInfo upgradingInfo) +577 Telerik.Sitefinity.Configuration.Data.XmlConfigProvider.LoadElement(ConfigElement element, XmlReader reader, ConfigPolicyHandler policyHandler, String policyName, UpgradingInfo upgradingInfo, Boolean isNew, Boolean validateTagName) +379 Telerik.Sitefinity.Configuration.Data.XmlConfigProvider.LoadSectionFromReader(ConfigSection section, XmlReader reader, ConfigPolicyHandler policyHandler, String policyName, Boolean checkForUpgrade, UpgradingInfo& upgradingInfo) +340 Telerik.Sitefinity.Configuration.Data.XmlConfigProvider.LoadSectionFromFile(ConfigSection section, ConfigPolicyHandler policyHandler, String policyName, Boolean withUpgrade) +138 Telerik.Sitefinity.Configuration.Data.XmlConfigProvider.LoadSection(ConfigSection section, ConfigPolicyHandler policyHandler, String policyName) +81 Telerik.Sitefinity.Configuration.ConfigSection.Initialize(ConfigProvider provider, ConfigPolicyHandler policyHandler, String policyName, Boolean singlePolicy) +194 Telerik.Sitefinity.Configuration.ConfigSection.Initialize(ConfigProvider provider) +30 Telerik.Sitefinity.Configuration.Config.Get(Boolean safeMode) +272 Telerik.Sitefinity.Abstractions.ObjectFactory.ConfigureCaching(ConfigurationSourceBuilder configBuilder) +201 Telerik.Sitefinity.Abstractions.ObjectFactory.RegisterIoCTypes() +302 Telerik.Sitefinity.Abstractions.Bootstrapper.Bootstrap() +232 Telerik.Sitefinity.Web.SitefinityHttpModule.Init(HttpApplication context) +116 System.Web.HttpApplication.InitModulesCommon() +192 System.Web.HttpApplication.InitInternal(HttpContext context, HttpApplicationState state, MethodInfo[] handlers) +1504 System.Web.HttpApplicationFactory.GetNormalApplicationInstance(HttpContext context) +348 System.Web.HttpApplicationFactory.GetApplicationInstance(HttpContext context) +200 System.Web.HttpRuntime.ProcessRequestInternal(HttpWorkerRequest wr) +286

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Version Information: Microsoft .NET Framework Version:4.0.30319; ASP.NET Version:4.0.30319.272 

Problem solved.

Hi,

The error was caused because either the newsrotator project from Sitefinity SDK and your sitefinity project were refering to different versions of Sitefinity. The NewsRotator sample was taken form the latest SDK where the version of all samples is 5.0.2860 and this was causing the problem since newsrotator was expecting 5.0.2860, but it was 5.0.2800. There is a resolution to the problem without upgrading the project. In newsrotator project change the assembly references to point to the sitefinity assemblies located in the bin folder of your Sitefinity project this way the both project will use the same version of Sitefinity.

Greetings,
Stanislav Velikov
the Telerik team

Please guide me how to do it step by step.
I am new to sitefinity
I have tried to do what you asked me to do.
I opened the sitefinitywebapp > References > Telerik.Sitefinity.dll of newsrotator project 
changed the assembly reference to 5.0.2868.0 instead of 5.0.2800.0
am I doing it right?

Hello,

If you project is on Sitefinity 5.0.2800 then we need to change the Sitefinity assemblies of the NewsRotator sample in visual studio to be the same version.

In visual studio add the newsrotator project to your Sitefinity solution and expand the references dropdown of the newsrotator project. Delete the references for:
Telerik.Sitefinity, Telerik.Sitefinity.Resources, Telerik.Sitefinity.Modules, Telerik.Sitefinity.Utilities, Telerik.OpenAccess3.5.Extensions and Telerik.OpenAccess4.0.Extensions(if you have it referenced.)
Then right click references and "Add Reference..." -> Browse and browse to the bin folder of your Sitefinity project. Add the same referenced you have removed Telerik.Sitefinity, Telerik.Sitefinity.Resources, Telerik.Sitefinity.Modules, Telerik.Sitefinity.Utilities, Telerik.OpenAccess3.5.Extensions and Telerik.OpenAccess4.0.Extensions and click OK.
The references are not taken from the Sitefinity project and their version now is for sure Sitefinity 5.0.2800.
Build the newsrotator project and reference it in Sitefinity.


All the best,
Stanislav Velikov
the Telerik team

I am using the standard version and I don't have e-commerce module inbuilt . But I require to create a product module for which first product with image only should be displayed and then after on click on the particular product, I should get the details of the Product. Please instruct me regarding the issue how can I create the custom Product Module using the user controls.

Hello Hemendra,

I believe that the Module builder is the tool best suited for your needs. Additionally I would suggest to take a look at the following webinar, which I believe you will find useful.